# SDR SWAA2020110521288

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 6, 2020
- Submitted: November 5, 2020
- Operation: Air carrier
- Aircraft: [N429WN](https://openairdocs.org/aircraft/N429WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33658
- Aircraft time: 61,054 hours, 35,875 cycles
- System (JASC): [5510 · Horizontal Stabilizer Structure](https://openairdocs.org/jasc/5510)
- Part: Stiffener
- Condition: Cracked
- Location: Horizontal Stab
- 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/SWAA2020110521288

## Discrepancy

LT HORIZONTAL STAB RIB NR 4 AT STIFFENER NR 2 CRACK.  INSTALLED LT HORIZONTAL STABILIZER MACHINED RIB NR 4 LOWER CHORD AND VERTICAL STIFFENER NR 2 CRACK REPAIR, PER REF B737-700 SRM 55-10-09-2R-5 REPAIR 5.

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