# SDR SWAA2021100518395

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 15, 2021
- Submitted: October 5, 2021
- Operation: Air carrier
- Aircraft: [N7885A](https://openairdocs.org/aircraft/N7885A), registered now
- Make and model: Boeing 737-76N
- Registry model: [Boeing 737-76N](https://openairdocs.org/model/boeing-737-76n) (OpenAirDocs)
- Aircraft serial: 33379
- Aircraft time: 58,530 hours, 28,804 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/SWAA2021100518395

## Discrepancy

LH HORIZONTAL STAB L/E ACCESS PANEL RIB 4 HAS A CRACK. ; / [01] REMOVED CRACKED RIB P/N 186A1304-1 PER B737-700 SRM 51-40-02-0G-0.; [02] VERIFIED RIB REMOVAL; [03] LOCATED AND DRILLED NEW RIB P/N 186A1304-1 PER B737-700 SRM 51-10-02-0G-0.; [04] VERIFIED DRILLING; [05] OK TO INSTALL NEW RIB.; [06] INSTALLED NEW RIB AT LH HORIZONTAL STA L/E PANEL AS PER B737-700 SRM 51-40-02-0G-0; [07] VERIFIED STEP # 6.

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