# SDR SWAA2022051996041

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 20, 2022
- Submitted: May 19, 2022
- Operation: Air carrier
- Aircraft: [N474WN](https://openairdocs.org/aircraft/N474WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33861
- Aircraft time: 59,626 hours, 35,442 cycles
- System (JASC): [5510 · Horizontal Stabilizer Structure](https://openairdocs.org/jasc/5510)
- Part: Skin Panel
- Condition: Cracked
- Location: Lh Hor 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/SWAA2022051996041

## Discrepancy

CRACK INDICATION FOUND ON LT HORIZONTAL STABILIZER LOWER SKIN PANEL. LOCATED AT STAB STA 193.90 AND 16 INCH. FROM FRONT SPAR. CRACK LENGTH = 1.250 INCH. APPROX. 2022-211254 / REPAIRED LOWER EXTERNAL SKIN PANEL LOCATED ON LT HORIZONTAL STABILIZER LOWER SKIN PANEL. LOCATED AT STAB STA 193.90 AND 16 INCH. FROM FRONT SPAR IAW B737-700 SRM 55-10-01-2R-11 REPAIR 11. MATERIAL USED: ALUMINUM SHEET P/N: 2024T3-0.063 P.O: 2021 244321 SHEET P/N: 2024T3 0.080 P.O: 2022 126808. FINISH APPLY PROCESS ON REPAIR AREA WILL BE COMPLETED IN NO-ROUTINE CARD FAULT (TTG8Q00CG3EQ).

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