# SDR AWXA200501515

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 17, 2005
- Submitted: December 14, 2005
- 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: 61,105 hours, 42,713 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Part number: 6546812187
- Condition: Corroded
- Location: Bs 1011-1015
- 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/AWXA200501515

## Discrepancy

MCN - DURING C19 CHECK DISCOVERED LEVEL 2 GALVANIC CORROSION FOUND ON FLOOR SUPPORT LOCATED FROM BS 1011 TO BS 1015, WL 208, AND BL 7L.  CORROSION WAS FOUND TO BE OUT OF LIMITS IAW BOEING 737-300 SRM 53-60-51-1A-1 FIG 101.  MAINTENANCE REMOVED AND INSTALLED NEW FLOOR SUPPORT FROM BS 1011 TO BS 1015, WL 208 AND BL 7L IAW BOEING 737-300 SRM 51-40-02-0G FIG 12.

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