# SDR USAA050471

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 9, 2005
- Submitted: May 9, 2005
- Operation: Air carrier
- Aircraft: N440US
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 24811
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Frame
- Condition: Cracked
- Location: Fuselage
- Part time: 39,307 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/USAA050471

## Discrepancy

CLT - FOUND FRAME CRACKED 3 INCHES, STATION 727B BETWEEN STRINGER 8L-9L.  INSTALLED DOUBLER IAW TR 53-10-20B.  (M)

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