# SDR SWAA2023100697945

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 7, 2023
- Submitted: October 6, 2023
- Operation: Air carrier
- Aircraft: [N901WN](https://openairdocs.org/aircraft/N901WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32545
- Aircraft time: 51,839 hours, 30,144 cycles
- System (JASC): [5531 · Vertical Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5531)
- 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/SWAA2023100697945

## Discrepancy

CRACK RIB 8 ON ACCESS PANEL 321A AT VERTICAL STABILIZER 2023-568772<[01] TOOL USED: TEMPERATURE CONTROLLER: P/N: P3015GOES00000; S/N: 142811020; DUE DATE: 25-JAN-24.;[02] REPLACED RIB 8 LOCATED ON ACCESS PANEL 321A AT VERTICAL STABILIZER IAW B737-700 SRM 51-10-02 AND DRAWING 174A0103 SHEET 7 REV - SEE INDIVIDUAL SIGN OFFS BELOW;[03] TASK CARD COMPLETED <BR>REPLACED RIB 8 LOCATED ON ACCESS PANEL 321A AT VERTICAL STABILIZER IAW B737-700 SRM 51-10-02 AND DRAWING 174A0103 SHEET 7 REV - SEE INDIVIDUAL SIGN OFFS BELOW

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