# SDR SWAA2021121346061

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 20, 2021
- Submitted: December 13, 2021
- Operation: Air carrier
- Aircraft: [N231WN](https://openairdocs.org/aircraft/N231WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32499
- Aircraft time: 53,671 hours, 31,903 cycles
- System (JASC): [5511 · Horizontal Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5511)
- Part: Rib
- Condition: Cracked
- Location: Horizontal Stab
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2021121346061

## Discrepancy

CRACK INSPAR RIB 120.30 AT 36 INCHES OF FRONT SPAR AT RT HORIZONTAL STABILIZER ; 2021-526032 / [01] TOOL USED EDDY CURRENT FLAW DETECTOR P/N: NORTEC 600D; S/N: 210138203; DUE DATE: 05-MAR-22.; [02] TOOL USED EDDY CURRENT EQUIPMENT P/N: NORTEC 500D; S/N: N500X1693P030456; CAL DUE DATE: 30-NOV-21; [03] PERFORMED PERMANENT REPAIR ON INSPAR RIB 120.30 AT 36 INCHES FROM FRONT SPAR AT RT HORIZONTAL STABILIZERIAW B737-700 SRM 51-40-02 AND SRM 55-10-09-2R-4 REPAIR 4 FIGURE 202 SEE INDIVIDUAL SING OFFS BELLOW; [04] JOB COMPLETED AND CERTIFIED AS RII.

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