# SDR SWAA2022040476541

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 22, 2022
- Submitted: April 4, 2022
- Operation: Air carrier
- Aircraft: [N425LV](https://openairdocs.org/aircraft/N425LV), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29829
- Aircraft time: 66,161 hours, 39,000 cycles
- System (JASC): [5511 · Horizontal Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5511)
- Part: Rib
- Condition: Cracked
- Location: R/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/SWAA2022040476541

## Discrepancy

RH HORIZONTAL STSBILIZER;RIB ASSY 4{STAB STA 120.30} STIFFENER 1 HAS SUSPECT OF CRACK AT TOP POSITION. / [01] PERFORMED HFEC AT SUSPECTED CRACK IAW NDTM PART 6; 51-00-00 PROCEDURE 23. NO CRACKS;[02] AFTER NDT INSP NO CRACK FOUND AT R/H HORIZONTAL STAB RIB ASSY 4 (STAB STA 120.30 STIFFENER 1 AS PER 51-10-02 AND NDTM PART6; 51-00-00 PROCEDURE 23;[03] VERIFIED STEPS 1 AND 2

---
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.