# SDR SWAA2021100116007

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 9, 2021
- Submitted: April 27, 2022
- Operation: Air carrier
- Aircraft: [N7751A](https://openairdocs.org/aircraft/N7751A), registered now
- Make and model: Boeing 737-7BD
- Registry model: [Boeing 737-7BD](https://openairdocs.org/model/boeing-737-7bd) (OpenAirDocs)
- Aircraft serial: 36717
- Aircraft time: 43,609 hours, 22,223 cycles
- System (JASC): [5511 · Horizontal Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5511)
- Part: Rib
- Part number: 186A13041
- Part serial: 7550344
- Condition: Cracked
- Location: Lh Hor 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/SWAA2021100116007

## Discrepancy

SUPPLEMENTAL INFORMATION: LT HORIZONTAL STAB REMOVEABLE L/E HAS CRACKED RIB AT L/E STA 105.26 ; / [01] REMOVED AND REPLACED L/H HORIZONTAL STAB REMOVABLE L/E RIB AT STA 105.26 IAW SRM 51-40-05-0G-0; [02] VERIFIED THE L/H LE RIB INSTALLATION AT L/E STA. 105.26 PER SRM 51-40-05-0G-0; [03] VERIFIED THE L/H LE RIB INSTALLATION AT L/E STA. 105.26 PER SRM 51-40-02-0G-0; [04] CERTIFY; [05] EDIT: REMOVED AND REPLACED L/H HORIZONTAL STAB REMOVABLE L/E RIB AT STA 105.26 IAW *SRM 51-40-02-0G-0*; [06] L/H LEADING EDGE RIB REPLACEMENT AT LE STA 105.26 IS COMPLETE

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