# SDR SWAA2024073011570

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 11, 2024
- Submitted: July 30, 2024
- Operation: Air carrier
- Aircraft: [N478WN](https://openairdocs.org/aircraft/N478WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33989
- Aircraft time: 66,062 hours, 39,438 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Failsafe
- Condition: Damaged
- Location: Zone 100
- 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/SWAA2024073011570

## Discrepancy

ELONGATED HOLE ON STRAP FAIL SAFE BS 492.20 BETWEEN S-20R S-21R (MARKED) CORRECTION SHOULD BE = ELONGATE HOLE ON STRAP FAIL SAFE BS 492.20 BETWEEN S-21R S-22R (MARKED)<[01] REPAIRED PER EA 24-153-01959 WITH AN INSPECTION THRESHOLD DEFINED IN 24-153-01959-DT;[02] VERIFIED COMPLETION CORRECTIVE ACTION 1 AND MEASUREMENT TABLE.

---
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.