# SDR SWAA2020092112227

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 27, 2020
- Submitted: September 21, 2020
- Operation: Air carrier
- Aircraft: N492WN
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33866
- Aircraft time: 55,155 hours, 32,453 cycles
- System (JASC): [5511 · Horizontal Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5511)
- Part: Rib
- Part number: 186A1001
- 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/SWAA2020092112227

## Discrepancy

LEFT HORIZ STAB APPROX 26 INCHES FROM INBOARD EDGE THE 3RD RIB HAS A CRACK AT LOWER AREA, MKD 78-7, LEADING EDGE.  REMOVED & REPLACED RIB ASSY AT LT HORIZ STAB APPROX 26' FROM INBOARD EDGE 3RD RIB, PER B737-700 SRM 51-40-02-0G-0 DRWG NR 186A1001 & 186A1304.

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