Friday, 25 March 2016

#11 Report: Recommendation & Conclusion

4.0  Recommendation

·         Provide roof structures to the entire area of the stadium. This will prevent the seat and concrete step explore to sunlight and rain directly. In which, this will reduces the chance of defect occur on the seat and concrete step. Besides, this will provide a comfortable environment for visitor, which visitor will enjoy watching any games being held in the stadium although it is raining or scorching hot.

·         Maintenance management of Stadium Bandaraya Pulau Pinang must keep on eye to the contractor who does the maintenance works; they must wear full safety equipment before the start of any kind of maintenance works. If the contractor are not following this safety requirement, maintenance management of this stadium can issue summons under the name of MPPP to that particular contractor company.

·         Upgrade the sports facilities that available in the stadium. For example, long jump track inside the stadium are not properly maintained. Although the main sports that being played at the stadium are football, other sports facilities still must be well maintained.





5.0  Conclusion

In conclusion, Penang City Stadium has a good maintenance for every aspect. The management team has managed the maintenance part in succession. This is because in our observation the building was looking good and maintain well by the maintenance team. They use the planned preventive maintenance for their maintenance in order to make this stadium always in good condition and functioned well. This stadium also used unplanned maintenance for the emergency purposes. This is because the emergency cases will happen anytime.

Regular maintenance is essential to keep the stadium or any kind of building in a good condition at all the time. It helps to eliminate any circumstances that might cause the disturbance to the stadium operation. If the stadium is lack of maintenance or inadequate maintenance, it might give the other working staff of the stadium to an unsafe and dangerous working environment.

The effect of an effective maintenance in Stadium Bandaraya Pulau Pinang are it restore the function of the stadium, avoid any unnecessary system shutdown, increase the efficiency of the facilities inside the stadium, prolong the stadium functionality, improve overall stadium productivity, and it might help in increasing the profit of the stadium.

 Meanwhile the maintenance works in the stadium are essential, it it to ensure safety and health working conditions, and the maintenance works itself can possess to serious health and safety risks if not properly managed by the contractor or maintenance workers of the stadium.

#10 Report: Maintenance Management System (Part 2)

3.4  Maintenance Budget
Maintenance budget is the large block of money that tracked by specific department which is the accounting department. The budget will distribute into the organization involve in maintenance such as labour, materials, services, and other related expenses. Maintenance budget should be an expression of the forecasted short term which is annually and long term workloads in term of the cost of internal labour, contract labour and the materials needed to deal with them. This maintenance budget also emphasized that in plants requiring major shutdowns and there is also the need for a specific turnaround budget.

Budgeting procedures appropriate for large process plants are compared with those for individual manufacturing units. Maintenance budgeting is rarely as rational as described, senior management seeing maintenance only as a cost and ignoring the linkage between maintenance expenditure and production output. The need for a maintenance budget arises from the overall budgeting need of corporate management and involves estimation of the cost of the resources such as labours, materials, spare parts and other expenses budget. That will be needed in the next financial year to meet the expected maintenance workload.

For our case study, Penang City Stadium, the officer that we interview informed us that the maintenance budget of this stadium is about RM 500,000.00. This amount of budget will distribute to all department which are civil and engineering department, mechanical and electrical department, and services for their facilities. This amount of budget gave from government for their maintenance per annum and it will change by the situation and condition from the government budgeting for every year. The officer also informed us if the budget for maintenance is not enough then they will issue the problem to Majlis Pembandaran Pulau Pinang (MPPP). After that, the MPPP will check the issues and a reply letter will be issued.

Other than that, Penang City Stadium also have maintenance budget for field and track. This field need to have the maintenance such as cutting and sprinkling process. If the work cannot be done by worker from stadium they will hire the specialist to complete the maintenance. This maintenance also include in maintenance budget per annum.

1.2  Health and Safety Aspects
As mention above, Penang City Stadium maintenance work is carry out by contractors and workers in Penang City Stadium. Meanwhile, the ccontractors and workers often work in workplaces with hazards that unfamiliar to them which may comprises of chemical, pollution, and many more hazards.

Workers at the stadium roughly spend their time about 8 hours per day. It means that quarter of the day they spent at the stadium. Thus, it is very important for the working environment (stadium) to be kept safe from any hazard or circumstances.

In our case study site, Penang City Stadium is not concern about health and safety aspects in maintenance work. According to the information provided by Chief Clear, the contractors who undergo maintenance work in the stadium are not concern about their safety. In which, they does the maintenance works without using and wearing any safety equipment.

Occupational Safety and Health Act (OSHA) 1994
Purpose of OSHA 1994
·         To ensure safety, health and welfare of people who are at work.
·         To protect other people against risk or hazard regarding the activities of persons at work.
·         To promote safe working environment for persons at work.
·         To enhance the productivity rate of work by good working environment.

Problem and Hitch to Implement OSHA 1994
1)      Safety officer quality of works is inefficient;
Safety officer in every company is a must as required by the OSHA 1994. But, most of the company simply do not compliance the health and safety aspects due to lack of safety commitment and low budget allocation by management team.

2)      Ineffective health and safety campaign;
Health and safety awareness campaigns are important so that people who at work will avoid any accident or injury at the workplace.

3)      Lack of health and safety act enforcement by local authority;
Insufficient human labour, low government budget allocation and not committed can be added to this constraints.

4)      Inadequate safety training and course for safety officer;
Most of the safety officers are not properly trained and not certified for them to provide and enforce safety guidelines on the site.

5)      Behaviour of people who at work;
Some people at work pretend not to follow health and safety aspects although they know their working environment are no safe and being expose with hazard.

Importance of Implementing OSHA 1994
·        -  It establishes health and safety guidelines
·         - It might help in reducing accidents on site

·         - It leads to greater productivity and a higher quality of work

#9 Report: Maintenance Management System

3.1  Maintenance Management
Penang City Stadium does apply the modern maintenance management which is not to repair equipment rapidly yet to keep the equipment running at high capacity and produce quality products at lowest cost possible. Industrial Maintenance, Culture & Social Department is responsible for the management of all the physical assets. In term of maintenance, the mission of this department is to deliver comprehensive property management and maintenance services. The Maintenance Unit is responsible for the maintenance of buildings, engineering services, the landscaping and to include the provision of management services for minor refurbishment.

Industrial Maintenance, Culture & Social Department is headed by the Assistant Director I who is assisted by two assistant administrative officers and an assistant cultural officer. The one assistant administrative officer is responsible for the maintenance unit of Penang City Stadium. The scope of the works includes planning system for maintenance and work order routines, document record, preventive maintenance and unplanned maintenance. The assistant administrative officer is assisted by two administrative assistant who in charge in maintenance and general matters respectively. The record data and document of services in Penang City Stadium such as electrical services and cleaning works being done by the administrative assistant under supervision of assistant administrative officer.
3.2 Organizational Chart
3.2.1 Organizational Chart of Penang City Stadium

3.2.2 Organizational chart of Maintenance Unit

 

3.3 Type of Maintenance
In general, maintenance can be classified into two main categories, namely planned and unplanned maintenance. In practice, planned maintenance consumed higher overhead costs in compared to unplanned systems. The type of maintenance that use in City Stadium, Penang used is planned maintenance, preventive maintenance and unplanned maintenance, emergency maintenance.

Planned Maintenance
The type of maintenance use in City Stadium, Penang is planned maintenance. Planned maintenance is a method to allow the maintenance manager of the stadium to know what is the tasks needed to be carried out at any particular time by referring to the detailed and mapped chart, program based on the anticipation of all the work in the future. A planned maintenance program can effectively utilize the resources available, men and equipment to increase the productivity by improvement of safety for the stadium. In order to achieve optimum resources usage, cost of preventive maintenance should always be balanced well. Hence, planned maintenance is a method of detailing, costing and mapping out any foreseen work in coming year, or longer on a chart, listed in diary form or entered on a computer program where the maintenance manager of stadium can easily look out the tasks which are to be carried out at any particular time of the year through the executed schedule. It can be further sub-divided into planned preventive maintenance.

Planned Preventive Maintenance
Planned preventive maintenance defined as any work which may include service contracts for the inspection and servicing of equipment in regular basic, where work is directed to the prevention and without any happening of failure of a facility. Before the occurrence of failure or deviation of the facility from a set acceptable standard, identification of each item of work is done some time before.

It is very important for the implementation of preventive maintenance policies into City Stadium, Penang to update and evaluate all the services of the building. It can ensure the maintenance expenditure does not exceed the cost of repairing or replacing of the part of material, or even prevent the costly maintenance work of major breakdown in equipment or the failure of components.

Unplanned Maintenance
The City Stadium, Penang also uses unplanned maintenance such as emergency maintenance to repair or replace those unforeseen defects or breakdowns that happen in the stadium. For example, the breakdown of air conditioning system. During our site visit on 29th February 2016, the air conditioning inside the office was stopped functioning. The maintenance manager of stadium immediately performs emergency maintenance by telling the situation to the Building Department of MBPP. After that, the Building Department of MBPP call the corresponding technician come and repair the air conditioning.

Emergency maintenance
An emergency maintenance is the unforeseen breakdown that is very urgent and may danger the safety of the occupant. The maintenance works are required to carry out immediately to replacement or repair so that the building condition can recover back to acceptable level and continue functioning.

3.3.1 Maintenance Schedule
TNB Incoming Electricity Power Supply
Component
Frequency
By
1.Power Transformer


-Transformer oil temperature
2 weeks
Tenaga Nasional Berhad  
-Oil Temp Gauge
2 weeks
Tenaga Nasional Berhad
-Overheating of cable termination
2 weeks
Tenaga Nasional Berhad
-Abnormal humming sound
2 weeks
Tenaga Nasional Berhad



2.Switchgear Panel
2 weeks
Tenaga Nasional Berhad
-Phase indicator
2 weeks
Tenaga Nasional Berhad
-Volt & Amp Meter
2 weeks
Tenaga Nasional Berhad
-Vacuum Circuit breaker
2 weeks
Tenaga Nasional Berhad
-Phase sequence indicator
2 weeks
Tenaga Nasional Berhad
-Battery & Charger
2 weeks
Tenaga Nasional Berhad
-Heater
2 weeks
Tenaga Nasional Berhad



3.LV Room
2 weeks
Tenaga Nasional Berhad
-Air Circuit Breaker (ACB)
2 weeks
Tenaga Nasional Berhad
-changeover contactor
2 weeks
Tenaga Nasional Berhad
-Over current relays
2 weeks
Tenaga Nasional Berhad
-earth fault relays
2 weeks
Tenaga Nasional Berhad
-Voltage, Ampere meters
2 weeks
Tenaga Nasional Berhad
-Power factors, Frequency meters
2 weeks
Tenaga Nasional Berhad

JBA Water Supply
Component
Frequency
By
1.JBA Water Meter


-Dial
Monthly
Perbadanan Bekalan Air
-Gland seal
Monthly
Perbadanan Bekalan Air
-Handle
Monthly
Perbadanan Bekalan Air
-Pressure Gauge
Monthly
Perbadanan Bekalan Air
-Flush Valve
Monthly
Perbadanan Bekalan Air



2.Suction Water Tank


-Float valve
Monthly
Perbadanan Bekalan Air
-Rubber piston
Monthly
Perbadanan Bekalan Air
-Float Ball
Monthly
Perbadanan Bekalan Air
-Level indicator
Monthly
Perbadanan Bekalan Air

Fire Protection System
Component
Frequency
By
1.Wet Riser system


-Gate Valve
Monthly
MBPP Technician
-Rubber Bellows
Monthly
MBPP Technician
-Pump motor & bolts
Monthly
MBPP Technician
-Motor terminal plate
Monthly
MBPP Technician
-Power supply cable
Monthly
MBPP Technician
-Pressure Switch
Monthly
MBPP Technician



2. Sprinkler system


-Gate valve
Monthly
MBPP Technician
-Rubber Bellows
Monthly
MBPP Technician
-Pump motor & bolts
Monthly
MBPP Technician
-Motor terminal plate
Monthly
MBPP Technician
-Power supply cable
Monthly
MBPP Technician
-Pressure Switch
Monthly
MBPP Technician
-Foundation springs
Monthly
MBPP Technician



3.Fire Control Panel     


-Smoke detector
Monthly
MBPP Technician
-Heat detector
Monthly
MBPP Technician
-Break glass
Monthly
MBPP Technician
-Fireman switch
Monthly
MBPP Technician
-Fire damper
Monthly
MBPP Technician
-Panel battery
Monthly
MBPP Technician
-Pressurized fan
Monthly
MBPP Technician
-Smoke spill fan
Monthly
MBPP Technician



4.Fire Extinguisher
Monthly
MBPP Technician
5.Emergency Light
Monthly
MBPP Technician
6.Exit sign board
Monthly
MBPP Technician
7.Hydraulic Hose Reel
Monthly
MBPP Technician
8.Sprinkler head
Monthly
MBPP Technician

Passenger Lifts         
Component
Frequency
By
1.Hoist Machine


-Hoist motor
Monthly
Service Contractor
-Motor Ventilation Fan
Monthly
Service Contractor
-Brake assembly
Monthly
Service Contractor
-Gearbox
Monthly
Service Contractor
-Steel ropes & Pully
Monthly
Service Contractor
-Safety Barricades
Monthly
Service Contractor



2.Lift Car


-Lift doors
Monthly
Service Contractor
-Lift door Sensor
Weekly
Service Contractor
-Lift Indicators
Monthly
Service Contractor
-Car Operating Panel (COP)
Monthly
Service Contractor
-Remote call buttons
Monthly
Service Contractor
-Ventilation fan
Daily
Own Labor
-Lights
Daily
Own Labor
-Display Monitor
Daily
Own Labor

Air Conditioning System
Component
Frequency
By
-Main motor
Monthly
MBPP Technician
-Evaporator
Monthly
MBPP Technician
-Condensor
Monthly
MBPP Technician
-Coupling bush & Bolts
Monthly
MBPP Technician
-Power supply cable
Monthly
MBPP Technician
-Air Filter
Monthly
MBPP Technician
-Blower Fan
Monthly
MBPP Technician
-Cooling Coil
Monthly
MBPP Technician

CCTV
Component
Frequency
By
-Digital Video Recording (DVR)
Monthly
Service Contractor
-Monitor
Monthly
Service Contractor
-Camera
Monthly
Service Contractor
-External Hard Disk
Monthly
Service Contractor
-Cable Connection
Monthly
Service Contractor

Football Field
Component
Frequency
By
1.Glass cutting


-Surrounding
Daily
Own Labor
-Football Field
Daily
Own Labor
-Repair & Replacement
Monthly
Service Contractor



2.Spotlight


-LED lamp
Monthly
Service Contractor
-Power supply cable
Monthly
Service Contractor
-Filament
Monthly
Service Contractor
-Pole
Monthly
Service Contractor



3.Eletrical Board          
Monthly
Service Contractor

Cleaning
Component
Frequency
By
1.Lighting


Down light
Daily
Own Labor
Emergency light
Daily
Own Labor
Ventilation
Daily
Own Labor
PA speaker
Daily
Own Labor
Hand drier
Daily
Own Labor



2.Toilet Fitting


Toilet flushing
Daily
Own Labor
Water closet
Daily
Own Labor
Toilet seat
Daily
Own Labor
Wash basin
Daily
Own Labor
Toilet partition
Daily
Own Labor
Floor trap
Daily
Own Labor
Soap dispenser
Daily
Own Labor
Urinal valve
Daily
Own Labor
Urinal bowl
Daily
Own Labor



3.Civil & Structure


Wall
Daily
Own Labor
Ceiling
Daily
Own Labor
Floor
Daily
Own Labor
Window
Daily
Own Labor
Door
Daily
Own Labor

3.3.2  Labour Daily Working Schedule
Picture below are the copy of labour daily working schedule used in Penang City Stadium. This schedule is not allowed to attach in real document, so, we can only put in the copy obtained. 



3.4  Maintenance Procurement
It is important to develop a sourcing strategy that supports key organisational requirements regardless of whether it is decided to in-source or outsource the service. This should be in accordance with the short, medium, and long term benefits to every party involve. The sourcing strategy should have the flexibility to enable changes to be made whenever the demands of the organisation change. These changes can be in response to fluctuations in volumes or the emergence of new trends.

The facilities manager should develop the sourcing strategy so that       the availability of potential suppliers in the market can be balanced with the good supply chain management practice that will be include together with the assessment of the degree of importance of the individual elements of the maintenance service. It is important to set whether or not the skills for development in-house within the facilities management team or to be outsourced to a specialist consultant with the appropriate experience so that the maintenance activity could be done according to the needs which involve the responsibilities every parties.

Maintenance Process
For planned maintenance that in out sources maintenance category like lift maintenance and field maintenance, Majlis Bandaraya Pulau Penang will first select the service contractor by using the bill of quantities prepared. The contractor selection is based on the criteria mention below. Then, the selected contractor will carries out planned maintenance work according to the signed contract document.  In which, the contact document is a document that legally bonded the contractor and the owner, who is Majlis Bandaraya Pulau Penang. The contract documentation is containing:
a)      Terms and conditions
b)      Scope of work
c)      Specification for the work
d)     Asset register (schedules of equipment, location, condition, etc.)
e)      Service level agreement
f)       Contract payment mechanism
g)      Other related document

However, the process for the maintenance work that out of planning is different. When any element is needed to be maintaining, Penang City Stadium will issue the work sheet order to the Majlis Bandaraya Pulau Penang and later they will verify the order and beginning the maintenance work.  

Selection of Contractors
In selecting service providers, facilities managers should carefully consider their evaluation criteria in advance and the weighting that they apply to each one, and then mark tender submissions accordingly. For the City Stadium Penang, the selection of contractors is fully made by the Majlis Bandaraya Pulau Pinang since this building is owned by them. The contractor that being selected is responsible in doing the maintenance not only to the City Stadium Penang but together with other building under the management of Majlis Bandaraya Pulau Pinang.
Majlis Bandaraya Pulau Pinang will make an election in every 2 years to give opportunities to other contractors in filling the works space at City Stadium Penang. There are some contractors that still in contract with City Stadium Penang under Majlis Bandaraya Pulau Pinang if Majlis Bandaraya Pulau Pinang itself satisfied with the working behaviour of the workmen on site, approach to complaints, response time to requests for action in doing their respective works.

In generally, when making a selection of contractors there will be some issues that have to be taken. Typical issues to be considered are as follows:
a)      Competence
b)      Financial
c)      Insurance
d)     Resources
e)      Management
f)       Method of operation
g)      Geographical base
h)      Experience elsewhere
i)        Supply chain
j)        Health and safety
k)      Quality control
l)        Environment and sustainability
m)    Emergencies
n)      Equal opportunities and recruitment

Payment Mechanisms
For the Penang City Stadium, all the payments for the maintenance works are paid by the Penang City Stadium itself by using the budget from the Majlis Bandaraya Pulau Pinang. In which, the financial income of Majlis Bandaraya Pulau Penang is from the rental charge of Penang City Stadium and other property rental charge. They have prepared the rental charge for each facilities provided in Penang City Stadium and the rental charge is available from their official website (Rental charge for Penang City Stadium will show in appendix 1).

1.1.1        Bill of Quantity
Due to the confidential of document, we do not get the bill of quantity for maintenance work of Penang City Stadium. However, we have prepared an example bill of quantity by using the bill of quantity in other company.
Item
Description
Unit
Quantity
Rate
Amount

Section 1: Lifts





SERVICING AND MAINTENANCE OF ALL TYPES OF LIFTS





Allow for comprehensive monthly Lift Inspection Reports to be compiled by an approved ISO certified company for the following:





Basic Inspection





Car




1
Check the car lighting
Item
1


2
Check the car interior
Item
1


3
Check signs in the car (Elevator identification, load plate information etc.)
Item
1


4
Check operation of remote/local alarm system
Item
1


5
Check operation of the telephone connection (if applicable)
Item
1



Car door




6
Test door open button in the car operation panel (COP)
Item
1


7
Test closing force limiter
Item
1


8
Test function of curtain of light, photocell or safety edge
Item
1


9
Check the sill groove of the car
Item
1


10
Check condition of car door panels and guide shoes
Item
1


11
Check operation of advanced door opening (if applicable)
Item
1



General operation at each floor




12
Check manually the display and button in the car operation panel and verify that the panel is securely fixed. Check the DOP module (if DCS system is applicable)
Item
1


13
Check stopping accuracy
Item
1


14
Check landing door sill and clearance between car/car door sill and landing door sill.
Item
1


15
Check the landing door frontage
Item
1


16
Check condition of landing door panels and locks and bottom guide shoes.
Item
1


17
Perform a test drive to check ride comfort. Drive the car in up direction and try to swing the car.
Item
1



Control panel




18
Check fault codes
Item
1


19
Test the function of earth leakage circuit breaker
Item
1


20
Test the function of emergency light
Item
1


21
Check operation of the manual brake release system
Item
1


22
Perform function test to check re-levelling accuracy
Item
1


23
Check operation of the intercom system (if applicable)
Item
1


24
Check the light of the control panel and overall tidiness.
Item
1


25
Check visually operation of the door zone indicator (green light on the control panel)
Item
1


26
Check the fixings of the motor supply cable
Item
1


27
Check the condition of main line entries and fixings.
Item
1


28
Check setting of load weighing device
Item
1


29
Note the reading of the start counter (if application)
Item
1


30
Check operation of the remote/local alarm system (if separate battery used for alarm system)
Item
1



Car roof




31
Check visually shaft lighting. Clean the car roof
Item
1


32
Check oil level in guide rail lubricators (if applicable)
Item
1


33
Check visually the machine
Item
1


34
Check of over speed govemor mechanism
Item
1



Elevator shaft




35
Check audio visually the machine brake
Item
1


36
Check electrical and mechanical function of landing door lock, coupler clearance and synchronisation
Item
1


37
Check landing door guide shoes
Item
1


38
Check washers of the ropes
Item
1


39
Check the tension of the suspension ropes
Item
1


40
Visual check of car positioning devices
Item
1


41
Check tightness of rope fixing and clips
Item
1


42
Checking condition of over speed govemor
Item
1


43
Check condition of suspension ropes
Item
1


44
Check counterweight frame, pulleys and filler weights. Listen for noise from pulley bearings when driving
Item
1


45
Check clearance between counterweight guide shoes and guide rails
Item
1


46
Check oil level in counterweight guide rail lubricators (if applicable)
Item
1


47
Check the counterweight safety gear if applicable
Item
1


48
Check fixing, condition and free movement of compensation rope/chain (if applicable)
Item
1



Pit




49
Check the oil cups
Item
1


50
Check  pit lighting and cleanliness
Item
1


51
Check condition of the lower guide shoes of the car
Item
1


52
Check  suspension rope pulleys and guards visually
Item
1


53
Check over speed govemor tension weight assembly
Item
1


54
Visual check of buffers and alignment of butter to strike plate
Item
1


55
Check fixing and condition of the travelling cable
Item
1


56
Check visually counterweight butter clearance/over travel
Item
1



Car sling




57
Check over speed govemor rope fixing to the car
Item
1


58
Check manually safety gear linkage
Item
1


59
Check over speed govemor electrical contact
Item
1


60
Check headroom buffers (if applicable)
Item
1


61
Check the condition of the upper guide shoes of the car
Item
1


62
Check the date of the last replacement of the emergency alarm battery
Item
1


63
Check function of upper limit  switch
Item
1


64
Check operation and fixings of the trap door contact (if applicable)
Item
1



Landing doors checks in landing




65
Check the landing door mechanical
Item
1


66
Check condition and clearance/alignment of door panels
Item
1


67
Check that the door panel do not jam in open position
Item
1



Landing door checks in the shaft




68
Check alignment of railing profile. Clean if needed.
Item
1


69
Check condition and alignment of the door contact
Item
1


70
Check wear and alignment of the hanger rollers. Clean if needed
Item
1


71
Check wear, clearance and alignment of the anti-tip rollers. Clean if needed
Item
1


72
Check the condition and tension of synchronization rope
Item
1


73
Check the condition of synchronization roller
Item
1


74
Check operation of emergency opening device
Item
1



Landing door lock




75
Test manually the operation of lock
Item
1


76
Check landing door lock  rollers
Item
1


77
Check alignment and contact surface for lock contact (interlock)
Item
1



Landing door closing system




78
Check operation of the closing weight
Item
1


79
Check condition of closing weight rope
Item
1


80
Check condition of diverting pulleys
Item
1



Landing door sills and guide shoes




81
Check the sill connection to  the frame
Item
1


82
Check condition, integrity, engagement and fixings of the bottom guide shoes.
Item
1



Coupler




83
Check operation and alignment of the door coupler and rollers
Item
1



Car door generally




84
Checking condition and clearance/alignment of door panels
Item
1


85
Check for sill connection to the frame
Item
1



3.4.2        Work Order
Work order used in Penang City Stadium is divided into two type, which one in yellow colour and one in red colour. The yellow colour work order sheet is use for normal and basic maintenance work; while, the red colour work order sheet is use for emergency maintenance work. However, same to other document, this work order sheet is in confidential and we cannot obtain it.