# SDR SWAA2021030949989

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 10, 2021
- Submitted: March 9, 2021
- Operation: Air carrier
- Aircraft: N935WN
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36641
- Aircraft time: 39,462 hours, 23,697 cycles
- System (JASC): [5511 · Horizontal Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5511)
- Part: Rib
- Condition: Cracked
- Location: L/H Horiz. 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/SWAA2021030949989

## Discrepancy

CRACK INSPAR RIB UPPER POSITION LOC STAB STA 120.30 FRONT SPAR LT HORIZONTAL STAB / REPAIRED INSPAR RIB UPPER CHORD AT FRONT SPAR STAB S TA 120.3_LH HORIZONTAL IAW EA#55-0056-21 REVISION #0 EA NO. 21-155-00505 REV IR

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