TM 1-1510-225-CL
E-7
IF ENG ICE FAIL ANNUNCIATOR DOES NOT
EXTINGUISH:
2. Icing conditions – Exit. Assume engine anti-ice
is still on for performance calculations.
ENGINE
BLEED
AIR
SYSTEM
MALFUNCTION
L
or
R
BL
AIR
FAIL
ANNUNCIATOR
ILLUMINATED
1. BRAKE DEICE switch – OFF.
2. ITT 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 – ENVIR OFF.
IF CONDITION STILL PERSISTS:
4. RIGHT BLEED AIR VALVE switch – ENVIR OFF.
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).
