# SDR SWAA2023082380951

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 21, 2023
- Submitted: August 23, 2023
- Operation: Air carrier
- Aircraft: [N902WN](https://openairdocs.org/aircraft/N902WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36615
- Aircraft time: 51,130 hours, 29,802 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/SWAA2023082380951

## Discrepancy

CRACK FOUND ON RT HORIZONTAL STABILIZER LOWER SKIN AT STAB STA 193.90; 16.5' FROM FRONT SPAR; I/B ROW. CRACK LENGTH : 1' CRACK FOUND ON RT HORIONTAL STABILIER LOWER SKIN AT STAB STA 193.90 16.5' FROM FRONT SPAR I/B ROW. CRACK LENGTH : 1'<[01] REPAIRED RT HORIZONTAL STABILIZER LOWER SKIN AT STAB STA 193.90; 16.5' FROM FRONT SPAR; I/B ROW. AS PER SRM 55-10-01-2R-11.;[02] THIS IS A CATEGORY B REPAIR WITH AN INSPECTION THRESHOLD OF 56;000 FLIGHT CYCLES THAT REQUIRES A DVI AND AN LFEC EVERY 9;000 FLIGHT CYCLES; REF B737 SRM 55-10-01-2R-11 STEP 5(A) TABLE 204.;[03] RII -- VERIFIED STEPS 1 AND 2.

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