Powerplant (AE3007 A1/1 &A3) Flashcards
N1 limit
99.9%
N2 (Min/Max)
102%
ITT Start
800C
ITT Take off
921C
ITT Continuous
868C
Oil pressure below 88% N2
34psi / 95psi
Oil pressure above 88% N2
50psi / 95psi
Min oil temp prior to increasing N2 above 83%
40C (4 min warm up cold engine, 2 min warm up warm engine)
Min engine cool down time
1 minute
Max FF prior to lightup
365kph
Engine starter limit - Dry motoring continuous
5 min ON - 5 min OFF
Engine starter limit - First to Fourth cycle
1 min ON - 1 min OFF
Engine starter limit - Fifth cycle
1 min ON - 5 min OFF
During the engine start sequence when should you see a rise in the N2?
N2 should rise within 5 seconds (5 seconds)
During the engine start sequence when should you see IGN?
IGN should show at 14%N2
During the engine start sequence when should you see Fuel Flow?
FF at 28.5% N2 or 12 sec after IGN (12 seconds)
During the engine start sequence when should you see Light Up?
Light Up within 5 seconds of FF, no more than 10 seconds
What marks the end of the start cycle?
57%N2 - IGN out
Stable engine parameters N2/N1/Oil P?
N2 = 64% (6)
N1 = 24% (2)
Oil P = 34psi (3)
What is the normal time for an engine start sequence and the maximum?
40 sec = normal
60 sec = maximum
How much thrust is produced?
7426lb at sea level ISA+30
Where is bleed air tapped from?
The 9th and 14th stage of the compressor
What does the accessory gear box drive and how is it powered?
It is driven by the HP spool
It drives the hydraulic pump, 2 generators, air turbine starter, permanent magnet alternator, oil pump and fuel pump and metering unit
What is the max oil level
12 quarts
When would you get a low oil level warning?
6 quarts
When would you get a fuel low temp warning?
+5 degrees or below
