AIRPLANE
OPERATIONS
MANUAL
FLIGHT CONTROLS
REVISION 38
2-13-10
Page
9
Code
01
AOM
-145/
111
4
Inadvertent Actuation Protection
A continuous command of any trim switch is limited to 3 seconds, even
if the trim switch is pressed longer than 3 seconds. As a result, when
manually actuating the trim, it is necessary to release the switch after
a 3-second actuation, then actuate it again to continue the trim
command. This feature intends to minimize the effects of an
inadvertent trim command of the main and backup trim switches or
Ground Spoiler/Speed Brake Unit. The autopilot command is not
limited in time and has another logic to preclude inadvertent actuation.
NOTE:
For airplanes equipped with an HSCU -5009 MOD.2 or newer
and AWU -5 a TRIM voice message is provided to alert pilots
that the trim switch is being pressed for more than 3 seconds.
HSA Excessive Load Protection
The crew should keep the airplane trimmed to avoid excessive loads
on the Horizontal Stabilizer Actuator (HSA), especially after takeoff.
High loads on horizontal stabilizer may stall the HSA, inducing a
temporary loss of pitch trim command.
For airplanes equipped with an HSCU P/N 362100-1007 if the trim
switches are actuated for a period of time that totalizes 8 seconds
during the period when the horizontal stabilizer actuator is stalled, the
control unit will switch the associated system (main or backup) off and
the message PIT TRIM 1 (2) INOP will be permanently displayed on
the EICAS.
For airplanes equipped with an HSCU P/N 362100-1009, -5009 or
newer, if the pitch trim switches are actuated during the period when
the Horizontal Stabilizer Actuator is stalled, the message
PIT TRIM 1 (2) INOP will be displayed on the EICAS. The message
will disappear if the trim switch is released or any horizontal stabilizer
motion is detected. If the trim switches are actuated for a period of
time that totalizes 16 seconds during the period when the horizontal
stabilizer actuator is stalled, the control unit will switch the associated
system (main or backup) off and the message PIT TRIM 1 (2) INOP
will be permanently displayed on the EICAS.
NOTE:
For airplanes equipped with EICAS version 18 and on, the
messages PIT TRIM 1 (2) INOP have been replaced with
PTRIM MAIN INOP or PTRIM BACKUP INOP.
Summary of Contents for EMB145
Page 3: ......
Page 610: ...EMERGENCY PROFILES AIRPLANE OPERATIONS MANUAL 1 03 95 Page 2 Code 03 SEPTEMBER 29 2000...
Page 611: ...AIRPLANE OPERATIONS MANUAL EMERGENCY PROFILES SEPTEMBER 29 2000 1 03 95 Page 3 Code 03...
Page 614: ...ABNORMAL PROFILES AIRPLANE OPERATIONS MANUAL 1 03 97 Page 2 Code 01 REVISION 25...
Page 615: ...AIRPLANE OPERATIONS MANUAL ABNORMAL PROFILES DECEMBER 20 2002 1 03 97 Page 3 Code 01...
Page 616: ...ABNORMAL PROFILES AIRPLANE OPERATIONS MANUAL 1 03 97 Page 4 Code 01 DECEMBER 20 2002...
Page 622: ...PERFORMANCE AIRPLANE OPERATIONS MANUAL 1 04 03 Page 4 Code 01 REVISION 34 INTENTIONALLY BLANK...
Page 1000: ...LOADING AIRPLANE OPERATIONS MANUAL 1 07 10 Page 4 Code 40 JUNE 28 2002 EMB 145 DOOR CLEARANCES...
Page 1070: ...AIRPLANE OPERATIONS MANUAL LOADING DECEMBER 20 2002 1 07 80 Page 3 Code 01...
Page 1072: ...AIRPLANE OPERATIONS MANUAL LOADING DECEMBER 20 2002 1 07 80 Page 5 Code 01...
Page 1074: ...AIRPLANE OPERATIONS MANUAL LOADING DECEMBER 20 2002 1 07 80 Page 7 Code 01...
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Page 1718: ...AIRPLANE OPERATIONS MANUAL ELECTRICAL MARCH 28 2002 2 05 10 Page 3 Code 01 CONFIGURATION 1...
Page 1720: ...AIRPLANE OPERATIONS MANUAL ELECTRICAL REVISION 22 2 05 10 Page 5 Code 01 CONFIGURATION 2...
Page 1724: ...AIRPLANE OPERATIONS MANUAL ELECTRICAL REVISION 23 2 05 10 Page 6C Code 01 CONFIGURATION 3A...
Page 1726: ...AIRPLANE OPERATIONS MANUAL ELECTRICAL REVISION 26 2 05 10 Page 7 Code 01 CONFIGURATION 3B...
Page 1766: ...AIRPLANE OPERATIONS MANUAL LIGHTING JANUARY 21 2002 2 06 05 Page 3 Code 01 COCKPIT LIGHTING...
Page 1768: ...AIRPLANE OPERATIONS MANUAL LIGHTING JANUARY 21 2002 2 06 05 Page 5 Code 01 GLARESHIELD PANEL...
Page 1770: ...AIRPLANE OPERATIONS MANUAL LIGHTING JANUARY 21 2002 2 06 05 Page 7 Code 01 OVERHEAD PANEL...
Page 1786: ...AIRPLANE OPERATIONS MANUAL LIGHTING JANUARY 21 2002 2 06 15 Page 7 Code 01 OVERHEAD PANEL...
Page 1792: ...AIRPLANE OPERATIONS MANUAL LIGHTING JANUARY 21 2002 2 06 20 Page 5 Code 01 OVERHEAD PANEL...
Page 1827: ...FUEL AIRPLANE OPERATIONS MANUAL 2 08 00 Page 2 Code 01 REVISION 17 INTENTIONALLY BLANK...
Page 1940: ...AIRPLANE OPERATIONS MANUAL POWERPLANT JUNE 28 2002 2 10 70 Page 5 Code 01 THRUST REVERSER...
Page 2030: ...AIRPLANE OPERATIONS MANUAL FLIGHT CONTROLS REVISION 19 2 13 20 Page 3 Code 01 RUDDER SCHEMATIC...
Page 2052: ...AIRPLANE OPERATIONS MANUAL FLIGHT CONTROLS REVISION 18 2 13 30 Page 3 Code 01 FLAP SCHEMATIC...
Page 2060: ...AIRPLANE OPERATIONS MANUAL FLIGHT CONTROLS JUNE 29 2001 2 13 35 Page 5 Code 01 CONTROL STAND...
Page 2159: ...AIRPLANE OPERATIONS MANUAL OXYGEN OCTOBER 02 2001 2 16 10 Page 3 Code 01 MAIN OXYGEN CYLINDER...
Page 2160: ...OXYGEN AIRPLANE OPERATIONS MANUAL 2 16 10 Page 4 Code 01 OCTOBER 02 2001 OXYGEN SERVICE PANEL...
Page 2176: ...OXYGEN AIRPLANE OPERATIONS MANUAL 2 16 20 Page 2 Code 01 REVISION 20 INTENTIONALLY BLANK...