# SDR USAA2011082900010

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 4, 2011
- Submitted: August 29, 2011
- Operation: Air carrier
- Aircraft: [N417US](https://openairdocs.org/aircraft/N417US), registered now
- Make and model: Boeing 737401
- Aircraft serial: 23984
- Aircraft time: 60,908 hours, 40,946 cycles
- System (JASC): [5314 · Fuselage Main, Keel](https://openairdocs.org/jasc/5314)
- Part: Keelbeam
- Part number: 654769316
- Condition: Corroded
- Location: Fuselage
- 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/USAA2011082900010

## Discrepancy

Q3 CHECK - CORROSION ON AFT FUSELAGE RIGHT KEEL BEAM CHORD BETWEEN BS727C + 11 INCHES TO BS 816, S27R.  REPLACED AFT FUSELAGE RIGHT KEEL BEAM BETWEEN BS 727C + 11 INCHES TO BS 816, S27R IAW EA 103215.

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