SDR CALA2013111993069

Service difficulty report · Skin · Boeing 747422

Difficulty date: November 19, 2013
Submitted: November 20, 2013
Operation: Air carrier
Aircraft: N171UA
Make and model: Boeing 747422
Aircraft serial: 24322
Aircraft time: 91,712 hours, 10,774 cycles
Engine: Pwa PW4056
System (JASC): 5330 · Fuselage Main, Plate/Skin
Part: Skin
Condition: Damaged
Location: Fuselage
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

RT FUSELAGE SKIN HAS EVIDENCE OF DAMAGE AT STATION 1980 NEAR BULK CARGO DOOR FWD EDGE APPROXIMATELY ONE FOOT UPWARD FROM FWD LOWER CORNER. CHECKED DAMAGE AREA NO CRACK FOUND, DAMAGE THAT EXCEEDS THE ALLOWABLE SRM LIMITS WILL BE REPAIRED ON CF, IAW GMM05-30-05 & IS SUBJECT TO APPROVAL BY QC. ACCOMPLISHED HFEC INSP IAW MF8680 NO CRACKS FOUND, HFEC INSP CW NO DEFECTS NOTED OK TO CF9 IAW TOMC. REMOVED DOUBLER. HFEC MFG & INSTALLED REPAIR IAW ECRA 5330-04745.