Embraer EMB145 - Page 438

EMERGENCY
PROCEDURES
AIRPLANE
OPERATIONS
MANUAL
1-03-20
Page
4
Code
03
REVISION 40
AOM-145/1114
PITCH TRIM INOPERATIVE
(APPLICABLE TO ERJ-140 AIRPLANES)
EICAS WARNING: PIT TRIM 1(2) INOP or
PTRIM MAIN INOP, PTRIM BACKUP INOP
EICAS CAUTION: AUTO TRIM FAIL
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 are inoperative:
Pitch Trim Main System...................................... OFF
Pitch Trim Back Up System................................ OFF
Consider landing at the nearest suitable airport.
If message is 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: - 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).
If it is necessary to reduce airspeed below 160 KIAS, extend flaps
to 22°.
NOTE: Turning the airplane and extending the landing gear helps
to maintain minimum airspeed with unwanted pitch up
tendency.
Pitch Trim Command ............................................... CHECK ALL
SWITCHES
CAUTION:
IF PITCH TRIM IS RECOVERED, RETRIM THE
AIRPLANE AND PROCEED WITH FLIGHT NORMALLY.
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