# SDR USAA040917

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 29, 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): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Condition: Cracked
- 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/USAA040917

## Discrepancy

PIT - Q1 - MOUNT/INTERCOSTAL WITH 2 INCH CRACK AND 2 INCH BY 4 INCH CORRODED AREA, BS 727D TO BS 727E AT S 28L.  REMOVED CORROSION, TREATED AND PRIMED.  REPLACED INTERCOSTAL MOUNT IAW SRM 51-10-2.

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