TM 1-1510-224-CL
(8.) Light still illuminated after 30 seconds: LEFT ENVIRO &
PNEU BLEED AIR valve switch - ON.
(9.) RIGHT ENVIRO & PNEU BLEED AIR valve switch -
PNEU ONLY.
(10.) Light still illuminated after 30 seconds: RIGHT ENVIRO
& PNEU BLEED AIR valve switch - ON.
ENGINE ANTI-ICE FAILURE
(1.) ICE VANE POWER SELECT switch - STBY.
2.
VANE FAIL annunciator - Check extinguished.
ENGINE BLEED AIR SYSTEM MALFUNCTION
BL AIR FAIL ANNUNCIATOR ILLUMINATED
(1.) BRAKE deice switch - Off.
(2.) TGT and torque - Monitor (note readings).
(3.) ENVIRO & PNEU BLEED AIR valve switch (affected
side) - Off.
(4.) Cabin pressurization - Check.
EXCESSIVE DIFFERENTIAL PRESSURE
(1.) Cabin altitude and rate-of-climb controller - Select higher
setting.
If condition persists:
(2.) LEFT ENVIRO & PNEU BLEED AIR valve switch -
PNEU ONLY (L BL AIR OFF annunciator illuminated).
If condition still persists:
(3.) RIGHT ENVIRO & PNEU BLEED AIR valve switch -
PNEU ONLY (R BL AIR OFF annunciator illuminated).
If condition still persists:
4.
Descend immediately.
If unable to descend:
5.
Oxygen masks- On and 100%.
(6.) CABIN PRESS switch - DUMP.
E-6
