# SDR SWAA2023113012749

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 20, 2023
- Submitted: November 30, 2023
- Operation: Air carrier
- Aircraft: N8604K
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 39883
- Aircraft time: 38,645 hours, 17,832 cycles
- System (JASC): [5511 · Horizontal Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5511)
- Part: Rib
- Part number: UNKNOWN
- Condition: Cracked
- Location: Zn 300 Stabilize
- 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/SWAA2023113012749

## Discrepancy

CRACK ON RIB LOCATED LE STA 105.26 OF PANEL 331B AT LT HORIZONTAL STABILIZER 2023-650054<[01] REPLACED RIB LOCATED LE STA 105.26 OF PANEL 331B AT LT HORIZONTAL STABILIZER IAW B737-800 SRM 51-40-02 AND DWG 186A1001 SEE INDIVIDUAL SIGN OFF BELOW.;[02] STEP 1 CORRECTED <BR>REPLACED RIB LOCATED LE STA 105.26 OF PANEL 331B AT LT HORIZONTAL STABILIZER IAW B737-800 SRM 51-40-02 AND DWG 186A1001 SHEET 19 REV - SEE INDIVIDUAL SIGN OFF BELOW;[03] REPLACED RIB LOCATED LE STA 105.26 OF PANEL 331B AT LT HORIZONTAL STABILIZER IAW B737-800 SRM 51-40-02 AND DWG 186A1001 SHEET 19 REV - SEE INDIVIDUAL SIGN OFF BELOW. RII.

---
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.
