# SDR USAA040918

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 22, 2004
- Submitted: December 13, 2004
- Operation: Air carrier
- Aircraft: N435US
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 24557
- Engine: Cfmint CFM563B2
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Frame
- Condition: Corroded
- Location: Fuselage
- Part time: 41,420 hours
- 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/USAA040918

## Discrepancy

PIT - Q1 - FRAME, 2 INCH BY 1.5 INCH AREA, CORROSION; LEVEL 1; TASK NR C53-101-01, FRAME OUTER CHORD BS 227.8, WL 208.1 AND 2 INCH.  REMOVED CORROSION, TREATED AND PRIMED, REINSTALLED FASTENERS IAW SRM 51-40-03.

---
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.