# SDR AWXA200500798

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 29, 2005
- Submitted: July 11, 2005
- Operation: Air carrier
- Aircraft: N155AW
- Make and model: Boeing 737-3G7
- Registry model: [Boeing 737-3G7](https://openairdocs.org/model/boeing-737-3g7) (OpenAirDocs)
- Aircraft serial: 23777
- Aircraft time: 57,741 hours, 40,417 cycles
- System (JASC): [5753 · Trailing Edge Flaps](https://openairdocs.org/jasc/5753)
- Part: Bolt
- Part number: BACB30NR6K
- Condition: Corroded
- Location: Flap Carriage
- 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/AWXA200500798

## Discrepancy

MCN - MAJOR REPAIR - DURING C16 CHECK DISCOVERED GALVANIC CORROSION ON 4 BOLTS LOCATED AT THE LT INBOARD MID FLAP OUTBOARD CARRIAGE.  THERE ARE NO LIMITS ON CORRODED BOLTS.  MAINTENANCE REMOVED AND REPLACED THE 4 BOLTS FOR THE LT INBOARD MID FLAP, OUTBOARD CARRIAGE IAW BOEING SOPM 20-50-01.

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