# SDR SWAA2020050436722

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 8, 2020
- Submitted: May 4, 2020
- Operation: Air carrier
- Aircraft: [N470WN](https://openairdocs.org/aircraft/N470WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33860
- Aircraft time: 55,307 hours, 32,840 cycles
- System (JASC): [5534 · Vertical Stabilizer Miscellaneous Structure](https://openairdocs.org/jasc/5534)
- Part: Channel
- Condition: Cracked
- Location: Vertical Stab
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2020050436722

## Discrepancy

VERTICAL STAB STAB STA 1016; 7.5' ABOVE FUSELAGE SKIN @ VERTICAL STAB MOUNT. LATERAL SUPORT CHANNEL CRACKED AT BOTH SIDES AT RADIUS / REMOVED AND REPLALCED VERTICAL STABIZER SPRING ASSEMBLY P/N 176A3101-26 I/A/W SRM 51-40-02-0G-0 AND BOEING DRAWINGS 176A3101 REV- AND 176A3001 REV D

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.