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1. Autopilot Disconnect Button .............................PRESS AND HOLD
2. Electric Pitch Trim ......................................................DISENGAGE
3. Attempt to free trim with firm application of fore and aft pressures
on the pitch trim wheel.
CAUTION: DO NOT USE EXCESSIVE FORCE AS THE PITCH
TRIM SYSTEM IS PROTECTED BY A SHEAR PIN DESIGNED TO
BREAK IF EXCESSIVE FORCE IS APPLIED. IF THE PIN IS SHEARED,
FUTURE USE OF PITCH TRIM WILL NOT BE POSSIBLE.
If the pitch trim cannot be freed and descent to warmer altitude is
not feasible:
4. Maintain current trimmed airspeed while in cruise flight. If climbs
or descents are necessary, disconnect autopilot and manually fly
the airplane to new altitude. Determine trim airspeed for new
altitude, adjust power as required. Engage autopilot if desired.
Continued on next page →
Quick Reference Handbook
ABNORMAL / EMERGENCY PROCEDURES REVISION 7
Page EE - 6 May 30/02
Frozen Pitch Trim, ctd… AFM 3-15-70
5. If possible, descend to warmer altitude before attempting any
configuration changes.
When below 20,000 ft. MSL:
6. Attempt to free trim using electric pitch trim switches. If unable, turn
pitch trim OFF and re-attempt to free trim using firm pressure on
pitch trim wheel.
If trim cannot be freed, plan to approach and land with current trim
setting. Normal cruise trim is approximately zero (0) units while
approach trim is typically 12 to 14 units nose up. Yoke pull force is
not excessive with pitch trim at zero (0) and the airplane in landing
configuration. Speed and configuration should be adjusted to give
the best balance of approach speed and control forces for airport
and weather conditions.
CAUTION: CARE SHOULD BE TAKEN WHEN CHANGING
CONFIGURATION TO AVOID RAPID CONTROL FORCE BUILD-UP.
END
Failure of Stabilizer / Flap Interconnect AFM 3-14-10
1. Further Flap Movement..........................................................STOP
2. Land as soon as practicable; if further flight is necessary, match
flaps to stabilizer position and observe appropriate placard speed.
3. GPWS / GND SPLR FLAP ORIDE ............................................ ON
4. For Landing:
STABILIZER FAILED AT 20° or 39° POSITION:
Match flaps to stabilizer position. If appropriate, see Partial Flaps
Landings, page EE-8. If runway length is limited and the
stabilizer is in 20° position, then 39° flaps may be used for landing.
In that condition, use full nose up elevator trim as required and
expect heavy pull forces on final approach and during landing.
Continued on next page →
Quick Reference Handbook
REVISION 7 ABNORMAL / EMERGENCY PROCEDURES
May 30/02 Page EE - 7
Failure of Stabilizer / Flap Interconnect, ctd… AFM 3-14-10
STABILIZER FAILED AT 0° or 10° POSITION
Match flaps to stabilizer position. See Partial Flaps Landings,
page EE-8. If runway length is limited, 20° flaps may be used for
landing. In that condition, use full nose up elevator trim as required
and expect heavy pull forces on final approach and during landing.
Wing Flaps - Alternate Operation AFM 3-14-20
CAUTION: IF OPERATING (COMBINED OR UTILITY) HYDRAULIC
PRESSURE READS ZERO IMMEDIATELY AFTER SELECTING FLAPS,
PULL BOTH THE FLAP CONT (CPO, B-1) AND THE MANUAL FLAP CONT
(CPO, A-1) CIRCUIT BREAKERS BEFORE TURNING ON AUXILIARY
HYDRAULIC PUMP. THIS WILL ENSURE THAT AUXILIARY SYSTEM
FLUID WILL BE AVAILABLE FOR BRAKING AFTER LANDING.
NOTE: When using the emergency flap control, the AOA indication on the
PFDs will be invalid (Red X). The stall barrier system (shake and push) will
continue to function normally (two systems). When 39° flaps is selected, the
"STALL BARR 1 FL" message will be displayed on CAS. Pull the STALL
WARN CMPTR CB (CPO, A-11). The stall barrier system will be single
system operation with the operative stall warning computer providing normal
shake and push functions.
To use the Emergency Flap Control, proceed as follows:
1. Flap Lever ...............................................................AS REQUIRED
2. Auxiliary Hydraulic Pump................................ ON (IF REQUIRED)
NOTE: Do NOT engage autopilot when using emergency flaps unless
flap deflection is 10° or greater.
3. Emergency Flap Switch...................................................... EMERG
NOTE: Activating the Emergency Flap switch will cause a FLAP INPUT
INVALID message on the FMS CDU, the speed target will become invalid,
VREF will no longer be displayed on the display controller or PFD speed
tape and the autothrottle will disengage.
　
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