TM 55-1510-219-CL
BLEED AIR FAILURE LIGHT ILLUMINATED
1.
2.
3.
4.
Brake deice switch - OFF.
T G T a n d t o r q u e - M O N I T O R ( N O T E
READINGS).
Bleed air valve switch - PNEU & ENVIRO OFF.
Cabin pressurization - CHECK.
EXCESSIVE DIRRERENTIAL PRESSURE
1. Cabin controller - SELECT HIGHER SETTING.
2. If condition persists: LEFT BLEED AIR VALVE
SWITCH - ENVIRO OFF.
3. If condition still persists: RIGHT BLEED AIR
VALVE SWITCH - ENVIRO OFF.
4.
If
condition
still
persists:
DESCEND
IMMEDIATELY.
5. If unable to descend: CREW OXYGEN masks -
100% AND ON.
6. If unable to descend: CABIN PRESS switch -
DUMP.
7. Bleed air valve switches - OPEN.
LOSS OF PRESSURIZATION (ABOVE
10,000 FEET)
1. Crew oxygen masks - 100% AND ON.
C A B I N D O O R C A U T I O N L I G H T
I L L U M I N A T E D .
1.
2.
3.
Bleed air valve switches - ENVIRO OFF.
Descend below 14,000 feet as soon as
practicable.
Oxygen - AS REQUIRED.
E-7
