# SDR SWAA2021102933385

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 25, 2021
- Submitted: October 29, 2021
- Operation: Air carrier
- Aircraft: [N481WN](https://openairdocs.org/aircraft/N481WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29853
- Aircraft time: 58,820 hours, 34,773 cycles
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: None
- Part number: 111A13226
- Condition: Cracked
- Location: Center Wing Box
- 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/SWAA2021102933385

## Discrepancy

A .600' CRACK IN BS 663 BULKHEAD LOWER SKIN PANEL ATTACH ANGLE, RBL 40, WL 164.   CUT AND REMOVED DAMAGED SECTION OF ATTACH ANGLE IAW SRM 57-10-10-2R-5 REPAIR 5.  PERFORMED VISUAL INSPECTION OF REPAIR AREA. NO DEFECTS NOTED IAW SRM 57-10-10-2R-5, REPAIR 5.   TREATED AND PRIMED REPAIR AND CUT EDGES IAW SRM 57-10-10-2R-5, REPAIR 5, STEP 10.  INSTALLED ALL FUEL TANK FASTENERS. SEALED FASTENERS IN TANK IAW SRM 57-10-10-2R-5, REPAIR 5.   INSTALLED REPAIR CHANNEL AND STIFFENER IAW SRM 57-10-10-2R-5, REPAIR 5, AND DWG 111A1000, SHT 153, REV -.   DAMAGE REPAIRED IAW SRM 57-10-10-2R-5, REPAIR 5, & EA 21-157-03174.

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