SDR ASMF202101007

Service difficulty report · Valve · Boeing 7878

Difficulty date: October 29, 2020
Submitted: January 21, 2021
Operation: Air carrier
Aircraft: N782AM
Make and model: Boeing 7878
Aircraft serial: 37165
Aircraft time: 22,784 hours, 2,565 cycles
System (JASC): 3250 · Landing Gear Steering System
Part: Valve
Condition: Lack Of Lube
Location: Nlg Steering
Stage of operation: TX
How discovered: 9
Nature of condition: O
Precautionary procedure: O

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

What was found

DURING BOTH ENGINES START, THE NOSE WHEEL STEERING WAS NOT MOVEMENT. MAINTENANCE PERSONNEL PERFORMED REVISION, IAW AMM 31-51-00, DETECTING FAILURE PASS VALVE PIN STUCKED. THE PASS VALVE PIN WAS LUBRICATED, IAW MM 32-51-00 AND BOTH ENGINES WERE STARTED. OPERATIONAL TEST WAS PERFORMED, IAW AMM 71-00-00, NO CONFIRMING FAILURE, ALL CORRECT.

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