# SDR SWAA2016070853616

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 12, 2016
- Submitted: July 11, 2016
- Operation: Air carrier
- Aircraft: [N399WN](https://openairdocs.org/aircraft/N399WN), registered now
- Make and model: Boeing 737-3H4
- Registry model: [Boeing 737-3H4](https://openairdocs.org/model/boeing-737-3h4) (OpenAirDocs)
- Aircraft serial: 27693
- Aircraft time: 67,221 hours, 54,076 cycles
- System (JASC): [5712 · Wing, Rib/Bulkhead](https://openairdocs.org/jasc/5712)
- Part: Rib
- Part number: 6545412
- Condition: Cracked
- Location: Lt Wing
- 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/SWAA2016070853616

## Discrepancy

LEFT WING, RIB LOWER CHORD AT WBL 135.5 CRACKED AT RADIUS BETWEEN S-2 AND S-3.  REPAIRED CHORD IAW EA.

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