# SDR TSAA0457015

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 20, 2003
- Submitted: July 12, 2004
- Operation: Air carrier
- Aircraft: [N820AL](https://openairdocs.org/aircraft/N820AL), registered now
- Make and model: Boeing 737230
- Aircraft serial: 22138
- System (JASC): [5711 · Wing Spar](https://openairdocs.org/jasc/5711)
- Part: Spar
- Part number: 6545321
- Condition: Corroded
- Location: Wing
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/TSAA0457015

## Discrepancy

DISCOVERED CORROSION AT WBL 245, 254, 336, AND 341 ON THE UPPER WING SURFACE REAR SPAR.  REPAIR CONSISTED OF BLENDING OUT THE DAMAGED AREA PER SRM 57-30-1, FIGURES 1A AND 1B INSTRUCTIONS.  REMOVED FASTENERS IN THE BLEND OUT AREA.  INSTALLED HI-LOCKS WET WITH BMS 5-26 SEALANT IN TRANSITION FIT HOLES.  CLEAN AND TREEATED ALL EXPOSED SURFACES, FILLED REMAINING VOIDS AND GAPS WITH BMS 5-95 SEALANT.  REPAIR COMPLETED IAW ECO 3403.  AIRCRAFT RETURNED TO SERVICE.  (M)

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