# SDR SWAA2019071935126

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 1, 2019
- Submitted: July 19, 2019
- Operation: Air carrier
- Aircraft: N751SW
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29803
- Aircraft time: 69,684 hours, 41,054 cycles
- System (JASC): [5511 · Horizontal Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5511)
- Part: Rib
- Part number: 186A100013
- Part serial: 000373
- Condition: Cracked
- Location: Lt Horiz Stab
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2019071935126

## Discrepancy

LT HORIZONTAL STABILIZER RIB #4 FAILED (NDT) ROTO INSPECTION FINDING A CRACK FROM FORWARD LOWER SECTION.  REPAIRED RIB #4 PER EA.

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