# SDR SWAA2023042419319

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 21, 2023
- Submitted: April 24, 2023
- Operation: Air carrier
- Aircraft: [N957WN](https://openairdocs.org/aircraft/N957WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 41528
- Aircraft time: 38,518 hours, 23,626 cycles
- System (JASC): [5510 · Horizontal Stabilizer Structure](https://openairdocs.org/jasc/5510)
- Part: Seal
- 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/SWAA2023042419319

## Discrepancy

RT. HORIZONTAL STAB FWD UPPER SLIDE SEAL CRACKED.<[01] REMOVED AND REPLACED RT. HORIZONTAL STAB FWD UPPER SLIDE SEAL P/N 181A8025-2 IAW AIPC 53-31-31-03 AND AMM 53-31-31-400-802;[02] VERIFIED CORRECTIVE ACTION 1 PARTIAL UPDATE STEPS 1 AND 2 OK TO CLOSE;[03] COMPLETE STEP 1; 2.;[04] VERIFIED ALL STEPS COMPLETE.

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