Embraer EMB145 - Page 436

EMERGENCY
PROCEDURES
AIRPLANE
OPERATIONS
MANUAL
1-03-20
Page
2
Code
03
REVISION 40
AOM-145/1114
PITCH TRIM INOPERATIVE
(APPLICABLE TO EMB-135 AND EMB-145 AIRPLANES)
EICAS WARNING: PIT TRIM 1(2) INOP or
PTRIM MAIN INOP, PTRIM BACKUP INOP
(may be presented)
EICAS CAUTION: AUTO TRIM FAIL (may be presented)
If at least one message is presented without pressing any Pitch Trim
Switch:
Affected Pitch Trim System ..................................... OFF
Use the remaining Pitch Trim System.
If both Pitch Trim Systems become inoperative:
Pitch Trim Main System...................................... OFF
Pitch Trim Back Up System................................ OFF
Consider landing at the nearest suitable airport.
If no message is presented or is only presented when pressing any
Pitch Trim Switch:
Airspeed................................................................... REDUCE
Airspeed reduction alleviates control column forces and may permit
Pitch Trim command to be recovered.
If Pitch Trim command is reestablished continue using the
remaining Pitch Trim System.
NOTE: - For the EMB-145 XR model, if the PTRIM BACKUP INOP
message is displayed the maximum airspeed allowed is
Mach 0.78.
- Do not engage the Autopilot if the Main Pitch Trim System is
inoperative.
- If only one segment of the Pitch Trim Switch is pressed, the
TRIM aural warning message will be generated.
WARNING:
IF PITCH TRIM COMMAND IS NOT REESTABLISHED,
DO NOT OPEN SPEEDBRAKE.
If pitch trim command is not reestablished and the airplane
presents a NOSE UP tendency:
Airspeed.............................................................. REDUCE
If it is necessary to reduce airspeed below 180 KIAS (or 200
KIAS in icing conditions), extend flaps to 9° (at 20000 ft
maximum).
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