TM 1-1510-218-CL
E-6
ENGINE
BLEED
AIR
SYSTEM
MALFUNCTION
BLEED AIR FAILURE LIGHT ILLUMINATED
1. BRAKE DEICE switch – Off.
2. TGT and TORQUE – Monitor (note readings).
3. BLEED AIR VALVE switch – OFF.
4. Cabin pressurization – Check.
EXCESSIVE DIFFERENTIAL PRESSURE
1. Cabin pressurization controller – Select higher
setting.
IF CONDITION PERSISTS:
2. Oxygen (crew and passengers) – As required.
3. LEFT BLEED AIR VALVE switch – ENVIRO OFF
(light illuminated).
IF CONDITION STILL PERSISTS:
4. RIGHT BLEED AIR VALVE switch – ENVIRO
OFF (light illuminated).
5. Descend – As required.
IF CONDITION STILL PERSISTS:
6. Oxygen masks – 100% and on.
7. CABIN PRESS switch – DUMP.
8. BLEED AIR VALVE switches – OPEN (if cabin
heating is required).
