# SDR USAA2009011290065

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 16, 2008
- Submitted: January 12, 2009
- Operation: Air carrier
- Aircraft: [N438US](https://openairdocs.org/aircraft/N438US), registered now
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 24560
- Aircraft time: 50,701 hours, 34,140 cycles
- System (JASC): [5712 · Wing, Rib/Bulkhead](https://openairdocs.org/jasc/5712)
- Part: Rib
- Part number: 6545445
- Condition: Cracked
- Location: Rt 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/USAA2009011290065

## Discrepancy

NR 03-0528-8-0176/001 AND 6099288 - CRACK ON RT WING RIB LOWER CHORD WEB AT WBL 135.5. REPAIRED RT WING RIB LOWER CHORD WEB AT WBL 135.5 IAW EA NR 100777.

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