SDR FDEA202101040008

Service difficulty report · Interlock · Doug MD11F

Difficulty date: January 4, 2021
Submitted: January 6, 2021
Operation: Air carrier
Aircraft: N584FE
Make and model: Doug MD11F
Aircraft serial: 48436
Aircraft time: 88,878 hours, 20,679 cycles
System (JASC): 3230 · Landing Gear Retraction/Extension System
Part: Interlock
Condition: Inoperative
Location: Mlg
Stage of operation: CL
How discovered: O
Nature of condition: J
Precautionary procedure: A

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

What was found

GEAR HANDLE WOULD NOT RAISE, PERFORMED QRH, PROCEDURE SWITCH NO EFFECT. FOUND TRIM INTERLOCK CYLINDER NOT MOVING BLED RT TRIM RELIEF VALVE, REF MD11 MM 32-37-03-4. C/W TRIM CYLINDER OPERATIONAL TEST, REF MD11 MM 32-37-00-710-801. OPERATIONS CHECK GOOD.

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