SDR UALA2013040102082

Service difficulty report · Hinge · Boeing 767322

Difficulty date: March 31, 2013
Submitted: May 15, 2013
Operation: Air carrier
Aircraft: N653UA
Make and model: Boeing 767322
Aircraft serial: 25391
Aircraft time: 87,856 hours, 14,042 cycles
Engine: Pwa PW4060
System (JASC): 5280 · Landing Gear Doors
Part: Hinge
Condition: Vibration
Location: Lt Mlg Door
Stage of operation: CL
How discovered: O
Nature of condition: E
Precautionary procedure: A

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

What was found

LT MLG TRUNNION DOOR ISSUE, RTFL. AFTER TO, CABIN CREW REPORTED EXTREME VIBRATION AT APPROX MID CABIN TO ROW 8. ALSO HAD A INTERMITTENT KNOCKING SOUND ASSOCIATED WITH THE VIB. AFTER CYCLING THE GEAR, VIBRATION STILL SIGNIFICANT. VIBRATION AND KNOCKING GOT WORSE AFTER FLAPS AND GEAR EXTENDED DURING APPROACH. REMOVED AND REPLACED THE AFT FITTING ON THE LEFT HAND MAIN LANDING GEAR TRUNNION DOOR IAW MM. REPLACED LT GEAR TRUNNION DOOR AFT HINGE.