Service difficulty report · Gimbal Joint · Lear 45LEAR

Difficulty date
October 16, 2005
Submitted
October 17, 2005
Operation
Air carrier
Aircraft
N423FX
Make and model
Lear 45LEAR
Aircraft serial
134
Aircraft time
4,207 hours, 3,165 cycles
Part
Gimbal Joint
Part number
4532103050001
Condition
Sheared
Location
Mlg Actuator
Part time
4,207 hours, 3,165 cycles
Stage of operation
AP
How discovered
O
Nature of condition
K
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

ON APPROACH, SELECTED FLAPS 8 THEN 20, FLAPS OPS NORM TO DETENTS. SELECTED MLG DOWN, 3 GREEN DOWN & LOCK, LT MLG DOOR UNSAFE LIGHT ILLUM. SELECTED FLAPS 40. CYCLED MLG, DID NOTHING. DID A GO AROUND & SELECTED FLAPS 8. ON SELECTING FLAPS 8 AN AMBER FLAPS FAULT CAS ILLUM & FLAPS DID NOT MOVE. A FEW SECONDS LATER AN AMBER HYD PRESS CAS ILLUM. SELECTED HYD SYNOPSIS PAGE & LT & RT EDP AMBER & MAIN HYD PRESS SHOWED 40 PSI & AMBER BOXED. DECLARED EMERG & LANDED. LANDING UNEVENTFUL, USED NORMAL BRAKING. NO T/R'S OR SPOILERS AVAILABLE. LT MLG DOOR ACT SEVERED OFF GIMBAL ASSY & SEVERED ACTUATION LINE FROM UPLOCK ACT. SB 45-32-20 ISSUED ADDRESSING PROBLEM. A/C SCHEDULED BUT HAD NOT BEEN COMPLETED.