# SDR ASAA11410053

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 13, 2011
- Submitted: July 14, 2011
- Operation: Air carrier
- Aircraft: [N760AS](https://openairdocs.org/aircraft/N760AS), registered now
- Make and model: Boeing 737-4Q8
- Registry model: [Boeing 737-4Q8](https://openairdocs.org/model/boeing-737-4q8) (OpenAirDocs)
- Aircraft serial: 25098
- Aircraft time: 61,338 hours, 34,918 cycles
- System (JASC): [5314 · Fuselage Main, Keel](https://openairdocs.org/jasc/5314)
- Part: Keelbeam
- Part number: 65C329535
- 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/ASAA11410053

## Discrepancy

CORROSION LT W/W LT KEEL BEAM HAS CORROSION AT SURROUNDING AREAS OF NUT PLATES FROM BS 674 BS 727 WL 148 (LOWER SURFACE OF LOWER CHORD).  REMOVED NUT PLATES BLENDED CORROSION.  DAMAGE ALL WITHIN LIMITS.  REFINISHED SURFACES AND REPLACED NUT PLATES PER B737 400 SRM 53 60 12.

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