# SDR SWAA2023020889637

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 8, 2023
- Submitted: February 8, 2023
- Operation: Air carrier
- Aircraft: [N7855A](https://openairdocs.org/aircraft/N7855A), registered now
- Make and model: Boeing 737-79P
- Registry model: [Boeing 737-79P](https://openairdocs.org/model/boeing-737-79p) (OpenAirDocs)
- Aircraft serial: 29357
- Aircraft time: 53,057 hours, 34,450 cycles
- System (JASC): [5713 · Wing, Longeron/Stringer](https://openairdocs.org/jasc/5713)
- Part: Stringer
- Condition: Cracked
- Location: Zn 600 Right Win
- 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/SWAA2023020889637

## Discrepancy

CRACK ON UPPER STRINGER U-9 INTERNAL CAVITY BETWEEN RIB 21 TO RIB 22 AT RT WING 2022-707430<[01] REPAIRED UPPER STRINGER U-9 INTERNAL CAVITY BETWEEN RIB 21 TO RIB 22 AT RT WING IAW EA 23-157-00142 AND EA 23-157-00142-WIP1 SEE INDIVIDUALS SIGN OFF BELOW;[02] REPAIRED UPPER STRINGER U-9 INTERNAL CAVITY BETWEEN RIB 21 TO RIB 22 AT RT WING IAW EA 23-157-00142 AND EA 23-157-00142-WIP1 SEE INDIVIDUALS SIGN OFF BELOW

---
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.