SDR UALA2012111606591

Service difficulty report · Failsafe · Boeing 757222

Difficulty date: November 14, 2012
Submitted: November 16, 2012
Operation: Air carrier
Aircraft: N553UA
Make and model: Boeing 757222
Aircraft serial: 25277
Aircraft time: 67,112 hours, 24,941 cycles
Engine: Pwa PW2037
System (JASC): 5311 · Fuselage Main, Frame
Part: Failsafe
Condition: Corroded
Location: Bs 660
Stage of operation: IN
How discovered: V
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

FORWARD CARGO BAY, BS 660, WL 150, MAIN FRAME, AFT SIDE AT LBL 1, LBL 2 AND LBL 8 HAS AREAS OF CORROSION. AREA BLENDED AND FOUND TO BE OUT OF LIMITS BY NDT. REPLACED THE FAILSAFE AT BS 660 LBL 22 TO RBL 22 PER SRM 51-40-02. MAJOR REPAIR.