This is a work in progress
An elevator is jammed in a fixed position due to mechanical interference or internal actuator failure.
Jam of an elevator will result in reduced longitudinal (pitch) control effectiveness and degraded lateral-directional (roll-yaw) control effectiveness.
- Steep Approach: Unavailable.
- 1. Autopilot . . . OFF
- Elevator Position . . . Assess via FCS Synoptic
- If the failed elevator is fixed at a large trailing edge up deflection:
- If the failed elevator is not fixed at a large trailing edge up deflection:
- PITCH TRIM . . . Use (as required)
- ROLL TRIM . . . Neutralize roll control forces
- Landing Controllability Check Perform
- Landing Use shallow approach angle
- Landing Distance . . . Recalculate with a 1.25 factor
- Airspeed . . . VREF+ 10 KCAS minimum
- Flare . . . Minimize
- If a go-around is required:
IF ELEVATOR JAM OCCURRED DURING TAKEOFF ROTATION, ADJUST PITCH AND THRUST TO REMAIN BELOW 175 KCAS. IF AN ELEVATOR IS JAMMED AT THE TAKEOFF ROTATION DEFLECTION, INSUFFICIENT NOSEDOWN CONTROL MAY BE AVAILABLE ABOVE 175 KCAS.
To view the FCS Synoptic Legend, refer to 03-13-190, FCS Synoptic Legend.
a. Airspeed . . . 175 KCAS maximum
b. Airplane . . . Land as soon as possible
a. Airspeed . . . 285 KCAS / 0.9M maximum
b. Airplane . . . Land as soon as practicable
Refer to 03-13-10, Landing Controlability Check.
Pitch trim may be used for additional pitch control authority if necessary.
Landing distance should be based on VREF +10 KCAS to touchdown increased by a 1.25 factor to account for the shallow approach angle.
Wheel fuse plug release may occur due to added landing speed under combinations of high field elevation, landingweight and OAT.
a. Configuration . . . Minimize configuration changes
b. Airspeed . . . 175 KCAS maximum
Gulfstream GVII-G500 Airplane Flight Manual, Revision 1, August 31, 2018