# SDR USAA002066

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 6, 2000
- Submitted: March 5, 2001
- Operation: Air carrier
- Aircraft: N523AU
- Make and model: Boeing 737-3B7
- Registry model: [Boeing 737-3B7](https://openairdocs.org/model/boeing-737-3b7) (OpenAirDocs)
- Aircraft serial: 23858
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Flange
- Condition: Cracked
- Location: Fuselage
- Part time: 42,517 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/USAA002066

## Discrepancy

CLT - FOUND FLANGE CRACKED IN 4 PLACES, ONE AT 1 INCH AND 3 AT 4 INCHES, UPPER FLANGE INTERCOSTAL STATION 380 TO 400 BL 0.  FABRICATED NEW UPPER FLANGE AND INSTALLED PER SRM 51-10-2, 51-20-01 AND 53-30-51.  (M)

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