# SDR SWAA2021031756244

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 4, 2021
- Submitted: March 17, 2021
- Operation: Air carrier
- Aircraft: [N937WN](https://openairdocs.org/aircraft/N937WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36644
- Aircraft time: 39,004 hours, 23,596 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/SWAA2021031756244

## Discrepancy

CRACK INSPAR RIB STAB STA 129.50 LOWER CHORD FRONT SPAR AT LT HORIZONTAL STABILIZER. REPAIRED INSPAR RIB STAB 129.50 LOWER CHORD AT FRONT SPAR LH HORIZONTAL STABILIZER IAW EA Ï¿½2115500592 REV.1; EA Ï¿½55008821 REV.0 AND PART 1; PART 2

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