Limitations Flashcards
Maximum runway slope
2%
Maximum take off and landing tailwind component
15KTS, but omanair 10KTS company limitation
Maximum operating altitude
41000’
Maximum altitude for take off and landing
8400’
Maximum flight operating latitudes
Between 82N and 82S
Except between 80 and 130 WEST longitude:
70N latitude
And between 120 and 160 EAST longitude:
60S latitude
Turbulent air penetration speed
0.76M/280 KTS, Whichever is lower
Only applicable for climb and descend
Do not operate HF radios during:
Refueling
Maximum allowable RVSM differences between:
- Captain & FO in flight
- Captain and FO on ground
- Captain or FO and field elevation
- captain and FO in flight:
200’ - captain and FO on ground:
Below 5000’ elevation: 50’
Above 5000’ elevation: 60’ - captain or FO and field elevation:
Below and above 5000’ elevation: 75’
Maximum taxi weight B738:
79242 KG
Maximum take off weight:
79015 KG
Maximum landing weight:
66360 KG
Maximum zero fuel weight
62731 KG
Maximum differential pressure
9.1 PSI
Do not operate pack switched in high for:
Takeoff, approach and landing
When bleed air switch is switched ON.
This limitation may be ignored by the NNC of the fire and fumes removal.
Autopilot limitations (3 limitations):
- Do not operate aileron trim with the autopilot switched on.
- autopilot minimum disengage height is 50’ for manual landing.
- do not engage the autopilot after take off below 400’.
Autoland wind limitations:
Headwind/crosswind/tailwind
Headwind: 25KTS
Crosswind: 20KTS
Tailwind: 10KTS
Autoland glide path limitations:
Between 2.5 till 3.25 degrees
Flap settings for autoland:
Autoland only with flaps 30 or 40.
Do not use LVL change:
Below 1000’ AFE
Engine start switches must be on for:
- Takeoff
- Landing
- Engine anti ice operation
- In heavy rain
Operation of assumed temperature reduced takeoff thrust not allowed when:
Anti skid inoperative
Apu limitations:
Providing electrical and bleed air: 10000’
Providing only bleed air: 17000’
Providing only electrical load: 41000’
APU bleed air valve limitations and start limitation:
Must be closed when:
- auxiliary power connected and isolation valve is open
- engine no 1 bleed air is open
- isolation and engine no 2 bleed air is open
APU bleed valve may be open during engine start, but avoid engine power above idle.
After three consecutive aborted start attempts, a fifteen minute cooling period is required.
Flaps extension maximum altitude:
20000’
In flight do not extend speedbrake:
- beyond flight detent
- below 1000’ RA.
Alternate flap operation limitations
- when operating the alternate flaps with the alternate flaps position switch, allow 15 seconds between the operation of the alternate flap switch again to avoid damage to the alternate flap motor clutch.
- after a complete cycle between 0 to flaps 15 and back to 0, allow a 15 minute cooling period before operating again.
ADIRU alignment:
Do not align with latitudes higher than 78 degree and 15 minutes North or south.
Do not look ahead terrain radar (GPWS):
within 15 nm of takeoff, approach or landing at an airport not contained in the GPWS terrain database.
Note: Refer to Honeywell Document 060-4267-000 for airports and runways contained in the installed GPWS terrain database.
Do not operate weather radar when:
- in a hangar
- with personnel surrounding the nose area of the aircraft.
This does not apply to the WX radar test modes
Fuel system limitations:
Max temp Min temp Center tank limitation Fuel balance Fuel loading Fuel for ground operation of electric hydraulic pump
Max temp: 49 degrees
Min temp: -43 degrees or 3 degrees above the minimum freezing temp of the fuel
Fuel balance: schedule to zero, but no more imbalance for taxi takeoff, cruise and landing than 453KG.
Fuel loading: when more than 453 KG in center tank, then the main tanks should be full
Fuel for ground operation of electric hydraulic pump:
760 KG in related tank
Landing gear limitations;
Do not apply wheel brakes until after touchdown.
