# SDR USAA050997

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 10, 2005
- Submitted: September 6, 2005
- Operation: Air carrier
- Aircraft: N449US
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 24893
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Part number: 65C336557
- Condition: Cracked
- Location: Bs 380-400
- Part time: 41,152 hours
- 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/USAA050997

## Discrepancy

CLT - FOUND CHORD CRACKED .4 INCHES, UPPER CHORD ON INTERCOSTAL BETWEEN BS 380 AND 400, RBL 11.  FABRICATED AND INSTALLED NEW CHORD IAW BOEING DRAWING 65C33655 AND SRM 51-40-02.  (M)

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