# SDR USAA010987

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 20, 2001
- Submitted: August 6, 2001
- Operation: Air carrier
- Aircraft: N371US
- Make and model: Boeing 737-3B7
- Registry model: [Boeing 737-3B7](https://openairdocs.org/model/boeing-737-3b7) (OpenAirDocs)
- Aircraft serial: 22950
- System (JASC): [5314 · Fuselage Main, Keel](https://openairdocs.org/jasc/5314)
- Part: Keelbeam
- Condition: Corroded
- Location: Fuselage
- Part time: 46,925 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/USAA010987

## Discrepancy

CLT - FOUND LOWER CHORD OUTBOARD FLANGE CORRODED 1 INCHES BY 22 INCH, BS 673-695 RIGHT, BS 693-727 KEEL BEAMS.  CORROSION LEVEL 2 TASK C53-100-01.  REMOVED DAMAGE, INSTALLED REPAIR STRAPS LEFT AND RIGHT SIDE PER EA 69794.  (M)

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