AIRSPEED UNRELIABLE
(Condition: The airspeed or Mach indications disagree
with AOA calculated airspeed.
Objective: To identify a reliable airspeed indication.)
1 Autopilot disconnect switch . . . . . . . . . . . . .Push
2 A/T ARM switches (both) . . . . . . . . . . . . . . . OFF
3 F/D switches (both) . . . . . . . . . . . . . . . . . . OFF
4 Set the following gear up pitch attitude and thrust:
Flaps extended . . . . . . . . . . 10° and 85% N1
Flaps up . . . . . . . . . . . . . . . . 4° and 70% N1
CABIN ALTITUDE
(Condition: Cabin altitude is excessive.)
1 Don the oxygen masks.
2 Establish crew communications.
3 Check the cabin altitude and rate.
4 If the cabin altitude is uncontrollable:
PASS OXYGEN switch . . . . . . . Push to ON and
hold for 1 second
Without delay, descend to the lowest safe
altitude or 14,000 feet (10,000 feet if fuel
endurance is not critical), whichever is higher.
To descend:
*Move the thrust levers to idle
*Extend the speedbrakes
*If structural integrity is in doubt, limit
airspeed and avoid high maneuvering loads
*Descend at Vmo/Mmo
ENG AUTOSTART L, R
(Condition: Autostart did not start the engine.)
FUEL CONTROL switch
(affected side) . . . . . Confirm . . . . . . . . CUTOFF
ENG LIMIT EXCEED L, R
(Condition: An engine limit exceedance occurs.)
1 A/T ARM switch
(affected side) . . . . . Confirm . . . . . . . . . . . OFF
2 Thrust lever
(affected side) . . . . . Confirm . . . . . . Retard until
ENG LIMIT EXCEED
message blanks or
the thrust lever is at idle
ENG SURGE L, R
(Condition: An engine surge or stall that requires crew
action is detected.)
1 A/T ARM switch
(affected side) . . . . . . Confirm. . . . . . . . . . OFF
2 Thrust lever
(affected side) . . . . .Confirm . . . . . .Retard until
the ENG SURGE
message blanks or
the thrust lever is at idle
FIRE ENG L, R
(Condition: Fire is detected in the affected engine.)
1 A/T ARM switch
(affected side) . . . . . . . . . .Confirm . . . . . . OFF
2 Thrust lever
(affected side) . . . . . . . . . .Confirm . . . . . . Idle
3 FUEL CONTROL
switch (affected side) . . . . .Confirm . . . CUTOFF
4 Engine fire switch
(affected side) . . . . . . . . . .Confirm . . . . . . Pull
5 If the FIRE ENG message stays shown:
Engine fire switch
(affected side) . . . . . . . . . . Rotate to the stop
and hold for 1 second
ABORTED ENGINE START
(Condition: On the ground, an aborted engine start is
needed.)
1 FUEL CONTROL switch
(affected side) . . . . . . . . . . . . . . . . . . . CUTOFF
Dual Eng Fail/Stall
(Condition: Engine speed for both engines is below idle.)
1 FUEL CONTROL switches
(both) . . . . . . . . . . . . . . . . . . CUTOFF, then RUN
2 RAM AIR TURBINE switch . . . . . . . Push and hold
for 1 second
Eng Svr Damage/Sep L, R
(Condition: One or more of these occur:
*Airframe vibrations with abnormal engine
indications
*Engine separation)
1 A/T ARM switch
(affected side) . . . . . . . . . .Confirm . . . . . . OFF
2 Thrust lever
(affected side) . . . . . . . . . .Confirm . . . . . . Idle
3 FUEL CONTROL switch
(affected side) . . . . . . . . . .Confirm . . . CUTOFF
4 Engine fire switch
(affected side) . . . . . . . . . .Confirm . . . . . . Pull
STABILIZER
(Condition: One of these occurs:
*Stabilizer movement without a signal to
trim
*The stabilizer is failed)
1 STAB cutout switches (both) . . . . . . . . . CUTOUT
2 Do not exceed the current airspeed.
FO Stop Calls
- Fire or fire warning
- Engine failure
- Predictive windshear warning
- Significant handling difficulty
- Blocked runway
Airspeed Unreliable after V1
If an unreliable airspeed event occurs during takeoff at or after V1, maintain takeoff thrust, smoothly rotate towards 15° pitch attitude and establish the normal takeoff pitch attitude target, retract the landing gear, and maintain flap configuration. Climb at the normal takeoff pitch attitude target until reaching a safe altitude (acceleration height) and do the Airspeed Unreliable NNC.
