# SDR SWAA2020072197421

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 1, 2020
- Submitted: July 21, 2020
- Operation: Air carrier
- Aircraft: [N257WN](https://openairdocs.org/aircraft/N257WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32515
- Aircraft time: 47,883 hours, 28,501 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/SWAA2020072197421

## Discrepancy

LEFT HORIZONTAL STABILIZER FRONT SPAR L/E INTERNAL STIFFENER # 3 CRACKED AT RIB 5 STA 129'50.   INSTALLED PERMANENT REPAIR AT LT HORIZONTAL STAB RIB NO 5 STA 129.5 STIFFENER #3 LOWER AREA PER REF B737 SRM 55-10-09-2R-4

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