SDR UALA2011083004667

Service difficulty report · Door Frame · Boeing 757222

Difficulty date: August 30, 2011
Submitted: August 31, 2011
Operation: Air carrier
Aircraft: N556UA
Make and model: Boeing 757222
Aircraft serial: 26650
Aircraft time: 63,677 hours, 23,501 cycles
Engine: Pwa PW2037
System (JASC): 5240 · Service Doors
Part: Door Frame
Condition: Damaged
Location: L4 Door
Stage of operation: IN
How discovered: O
Nature of condition: O
Precautionary procedure: K

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

What was found

CREW REPORTS LT AFT SVC DOOR (4LT) SQUEALING AGAIN. PRESSURE SQUEAL CAME BACK THRU FL230 7.25 DIFF AND STOPPED ONCE LEVEL AT FL360. IN DESCENT, SQUEAL CAME BACK AGAIN WHILE PASSING THRU FL270 7.25D PSI. REF LM1575, REPAIRED BOTH LOWER DOOR FRAME CORNERS WITH REN, RESEALED BOTH UPPER CORNER LINER SEALS AND RESEALED TORQUE TUBE COVER PANEL. SEE SEQ 6772002, 6772004, 6772003. PRESS TO 4.5 PSI NO SQUEALS NOTED.