# SDR UALA2013012100341

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 19, 2013
- Submitted: January 29, 2013
- Operation: Air carrier
- Aircraft: N516UA
- Make and model: Boeing 757222
- Aircraft serial: 24860
- Aircraft time: 72,295 hours, 26,996 cycles
- Engine: Pwa PW2037
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Structure
- Condition: Corroded
- Location: Bs 1787
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2013012100341

## Discrepancy

INTERNAL TAIL AREA ABOVE CENTER HORIZONTAL STAB,  BS 1787 BETWEEN S4-5R APU INLET FWD EDGE METAL ATTACH FLANGE HAS CORROSION AT A NUT PLATE.  REMOVED CORROSION ON APU INLET ATTACH FLANGE FOUND TO BE OUT OF LIMITS IAW SRM 53-80-15.  REPAIRED APU INLET.  MAJOR REPAIR

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