# SDR SWAA2022032534364

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 26, 2019
- Submitted: May 16, 2022
- Operation: Air carrier
- Aircraft: [N8309C](https://openairdocs.org/aircraft/N8309C), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 36985
- Aircraft time: 26,538 hours, 11,414 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/SWAA2022032534364

## Discrepancy

: LEFT HORIZONTAL STAB L/E CRACK ON FIFTH RIB IN FROM INB END. MARKED WITH BLACK MARKER / REMOVED FIFTH TAB FROM INB END OF LEFT HORIZONTAL STAB 4E CRACKED AND INSTALLED NEW RIB ASSY P/N 186A130S-1 (RUB CRACKED NOT FOUND ALLOWABLE LIMITS ON THE SRM) IAW B737-800 SRM 51-40-02-0G-0; SRM 51-40-05-0G-0 DWG # 186A1001 REV;- AMM 51-21-91-620-802.

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