# SDR UALA2011082204429

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 19, 2011
- Submitted: August 26, 2011
- Operation: Air carrier
- Aircraft: N576UA
- Make and model: Boeing 757222
- Aircraft serial: 26690
- Aircraft time: 61,367 hours, 21,772 cycles
- Engine: Pwa PW2037
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Condition: Corroded
- Location: Bs 1000 - 1020
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011082204429

## Discrepancy

RIGHT OVERWING HATCH RT INTERNAL LOWER INTERCOSTAL WEB BS 1000 TO 1020 HAS CORROSION. MAJOR REPAIR ACCOMPLISHED: REMOVED CORROSION IAW 51-21-03 AND FOUND TO BE OUT OF LIMITS. REMOVED INTERCOSTAL & FABRICATED A REPLACEMENT AND HEAT TREATED TO T6 IAW SRM. ALODINED AND PRIMED IAW MM. INSTALLED IAW SRM.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain, except the copies of manufacturers’ service documents, which belong to their rights holders.