# SDR SWAA2023110909225

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 9, 2023
- Submitted: November 9, 2023
- Operation: Air carrier
- Aircraft: [N907WN](https://openairdocs.org/aircraft/N907WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36619
- Aircraft time: 51,137 hours, 29,886 cycles
- System (JASC): [5512 · Horizontal Stabilizer, Plate/Skin](https://openairdocs.org/jasc/5512)
- Part: Skin
- 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/SWAA2023110909225

## Discrepancy

CRACK INDICATION FOUND ON LT HORIZONTAL STABILIZER LOWER SKIN PANEL. LOCATED AT STAB STA 193.9 RIB AND 16 INCH. FROM FRONT SPAR. INBOARD SIDE OF RIB. CRACK LENGTH = 0.900 INCH. APPROX. 2023-637729 / [01] EDDY CURRENT EQUIPMENT USED P/N: NORTEC 600D; S/N: 220273012 AND DUE DATE: 17-DEC-23.;[02] REPAIRED LT HORIZONTAL STABILIZER LOWER SKIN PANEL LOCATED AT STAB STA 193.9 IAW B737-700 SRM 55-10-01-2R-11 REPAIR 11 FIGURE 204 DETAIL B. AND SRM 51-40-02.<BR><BR>SEE INDIVIDUAL SIGN-OFF BELLOW .;[03] REPAIRED LT HORIZONTAL STABILIZER LOWER SKIN PANEL LOCATED AT STAB STA 193.9 IAW B737-700 SRM 55-10-01-2R-11 REPAIR 11 FIGURE 204 DETAIL B. AND SRM 51-40-02.<BR><BR>SEE INDIVIDUAL SIGN-OFF BELLOW .<BR>RII

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