# SDR SWAA2020123032770

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 24, 2020
- Submitted: December 30, 2020
- Operation: Air carrier
- Aircraft: N933WN
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36640
- Aircraft time: 38,893 hours, 23,539 cycles
- System (JASC): [5511 · Horizontal Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5511)
- Part: Rib
- 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/SWAA2020123032770

## Discrepancy

CRACK INSPAR RIB LOCATED STAB STA 120.30 AT 19 INCHES FROM FRONT SPAR AT LT HORIZONTAL STABILIZER.  REPAIRED INSPAR RIB LOCATED STAB STA 120.30 AT 19 INCHES FROM FRONT SPAR AT LT HORIZONTAL STABILIZER, IAW B737-700 SRM; 55-10-09-2R-4; SHEET 1; FIGURE 202.  KIT USED T SECTION P/N:55100003-01; DWG 55100003; REV B; PAG 1 OF 3.  EVALUATED CRACK AND IS NOT PERMITTED, IAW B737-700 55-10-09-1A-1.

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