AIRPLANE
OPERATIONS
MANUAL
LIMITATIONS
REVISION 39
1-01-38
Page
1
Code
02
AOM-145/1114
AUXILIARY POWER UNIT
OPERATIONAL LIMITS
APU Model T-62T-40C11 T-62T-40C14
PARAMETER MIN MAX MIN MAX
TEMPERATURE (3) -
54°C
- - -
ALTITUDE FOR START
- 25000 ft or - -
- 30000 ft (2) - 30000 ft
OPERATION ALTITUDE
- 37000 ft - 37000 ft
ROTOR SPEED - 108% - 108% (5)
EGT:
- - - -
START - 884°C (1) - 884°C
CONTINUOUS - 680°C (6) - 680°C (6)
NOTE: 1) May be exceeded up to 925°C above 25000 ft during
10 seconds.
2) For airplanes Post-Mod. SB 145-49-0010 or equipped with
an equivalent modification factory incorporated. In this case,
the minimum temperature for APU start is -54°C up to
30000 ft.
3) Minimum battery temperature for starting the APU by
batteries is -20°C.
4) Refer to Fuel Tank Temperature limitations for other APU
starting related limits.
5) The APU automatically shuts down at 104% rotor speed.
6) The APU EGT may be exceeded up to 717°C for 5 minutes
maximum.
APU STARTER LIMITS
Cooling period between each starting attempt:
Between Three Consecutive Attempts............... 1 MINUTE OFF
Between Two Series of
Three Consecutive Attempts......................... 30 MINUTES OFF
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