# SDR USAA051147

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 26, 2005
- Submitted: September 29, 2005
- Operation: Air carrier
- Aircraft: N443US
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 24842
- Aircraft time: 40,439 hours, 40,439 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Sill
- Condition: Corroded
- Location: Bs 967-986
- 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/USAA051147

## Discrepancy

ZEE ANGLE AT AFT ENTRANCE DOOR SILL AROUND NUTPLATES BETWEEN STA 967 AND 986.  REMOVED DAMAGE AND REINSTALLED FABRICATED REPAIR PARTS IAW SRM 51-70-11, DEFECT SIZE: 20".

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