# SDR SWAA2020111624172

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 16, 2020
- Submitted: November 16, 2020
- Operation: Air carrier
- Aircraft: N727SW
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 27859
- Aircraft time: 73,855 hours, 43,794 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/SWAA2020111624172

## Discrepancy

LT HORIZONTAL STABILIZER RIB ASSEMBLY 4 (STAB STA 120.30) STIFFENER 2 IS CRACKED AT LOWER END.  REPAIRED LT HORIZONTAL STAB RIB ASSEMBLY 4 (STAB STA 120.30) 2ND STIFFENER AT LOWER END, IAW SRM 55-10-09-2R-5.

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