Service difficulty report · Warning Message · Boeing 7673S2F

Difficulty date
May 6, 2021
Submitted
May 6, 2021
Operation
Air carrier
Aircraft
N191FE
Make and model
Boeing 7673S2F
Aircraft serial
63122
Aircraft time
138 hours, 75 cycles
Part
Warning Message
Condition
False Activation
Location
Mlg
Stage of operation
AP
How discovered
O
Nature of condition
N
Precautionary procedure
L

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

What was found

GEAR DISAGREE ANNUNCIATION ON APPROACH WHEN GEAR LOWERED. ALSO, TAIL SKID ANNUNCIATION. EXECUTED MISSED APPROACH, COMPLETED QRH FOR BOTH ANNUNCIATIONS, CONDUCTED NORMAL LANDING. ANNUNCIATIONS REMAINED ON. DEBRIEFED CREW WHO INDICATED THEY DID NOT CYCLE GEAR A SECOND TIME IN FLIGHT. IN ADDITION TO THE "GEAR" AND "TAILSKID" FAULT ANNUNCIATIONS, FOUND NORMAL "3 GREEN" MLG ANNUNCIATIONS. DURING POSTFLIGHT WALKAROUND, FOUND TAILSKID RETRACTED. VISUALLY INSPECTED ALL GEAR PROX SENSORS & ACCESSABLE WIRING HARNESSES WITH NO FAULTS NOTED. PERFORMED PSEU BITE AND FOUND NLG SENSORS AND MLG SIDE/DRAG STRUT SENSORS NOMINAL FOR "ON GROUND" CONDITION. NO LRU RECALL FAULTS NOTED. PINNED ALL GEAR, APPLIED HYD POWER AND CYCLED GEAR HANDLE UP/DOWN. TAIL SKID EXTENDED AND "GEAR" & "TAILSKID" ANNUNCIATIONS CLEARED. REPEATED GEAR HANDLE CYCLE TWICE MORE WITH NO FURTHER GEAR FAULT INDICATIONS. LANDING GEAR HANDLE FEELS SMOOTH THROUGHOUT CYCLE. LANDING GEAR INDICATIONS OPS CK NORMAL IAW B767 AMM 32-61-00-5 AND 32-31-01-4. A/C OK FOR SERVICE.

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