# SDR AWXA200300485

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 21, 2003
- Submitted: May 7, 2003
- Operation: Air carrier
- Aircraft: [N164AW](https://openairdocs.org/aircraft/N164AW), registered now
- Make and model: Boeing 737-33A
- Registry model: [Boeing 737-33A](https://openairdocs.org/model/boeing-737-33a) (OpenAirDocs)
- Aircraft serial: 23625
- Aircraft time: 53,911 hours, 38,471 cycles
- System (JASC): [5314 · Fuselage Main, Keel](https://openairdocs.org/jasc/5314)
- Part: Keelbeam
- Part number: 65621258
- 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/AWXA200300485

## Discrepancy

LCQ - MAJOR REPAIR - DURING C-17 CHECK EXFOLIATION CORROSION WAS FOUND ON KEEL BEAM LOWER ANGLE IN RT AIR CONDITIONING BAY, BS 540.  MAINTENANCE REMOVED 2 EACH ANGLE SUPPORTS FOR ACCESS AND FOUND CORROSION INDICATIONS IN ALL SIX HOLES; REAMED OUT HOLES AND PERFORMED HFEC INSPECTION, 5 HOLES, NO CRACK INDICATION.  CRACK FOUND IN AFT HOLE OF HORIZONTAL FLANGE; CUT OUT CRACKED AREA ON KEEL BEAM LOWER ANGLE; PERFORMED ANOTHER HFEC INSPECTION, NO CRACK NOTED.  FABRICATED A REPAIR ANGLE, FILLER, STRAP, AND SHIMS; INSTALLED REPAIR PARTS IAW AWA ER 15-5313-03119-SS1.

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