# SDR SWAA2024061281352

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 1, 2024
- Submitted: June 12, 2024
- Operation: Air carrier
- Aircraft: [N479WN](https://openairdocs.org/aircraft/N479WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33990
- Aircraft time: 65,876 hours, 39,680 cycles
- System (JASC): [5511 · Horizontal Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5511)
- Part: Rib
- Part number: UNKNOWN
- Condition: Cracked
- Location: Horizontal Stab
- Stage of operation: IN
- How discovered: E
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2024061281352

## Discrepancy

CRACKED INSPAR RIB AT STAB STA 129.50 AND 28 INCH FROM FRONT SPAR IN THE LT HORIZONTAL STAB.  INSTALLED REPAIR PARTS T-SECTION, ANGLE,  TWO SHIMS & FASTENERS  ON INSPAR RIB IAW SRM 55-10-09-2R-4, REPAIR 4, STEP 4.M THRU 4.R, SRM 51-40-02, AND AMM 51-21-99. REPAIRED INSPAR RIB IAW SRM 55-10-09-2R-4, REPAIR 4 STEP 4.M THRU 4.R SRM 51-40-02 AND AMM 51-21-99.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.