# SDR SWAA117030

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 13, 2011
- Submitted: October 14, 2011
- Operation: Air carrier
- Aircraft: N550WN
- Make and model: Boeing 737-76Q
- Registry model: [Boeing 737-76Q](https://openairdocs.org/model/boeing-737-76q) (OpenAirDocs)
- Aircraft serial: 30279
- Aircraft time: 31,047 hours, 19,743 cycles
- System (JASC): [5714 · Wing, Center Box](https://openairdocs.org/jasc/5714)
- Part: Stiffener
- Part number: 111A24012
- Condition: Cracked
- Location: Center Wing Box
- 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/SWAA117030

## Discrepancy

DURING SCHEDULED 10Y CHECK, FOUND CENTER FUEL TANK UPPER FWD STIFFENER CRACKED AT BS 547.5, RBL 41.  REMOVED AND REPLACED STIFFENER PER ACO.

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