# SDR USAA040972

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 11, 2004
- Submitted: December 21, 2004
- Operation: Air carrier
- Aircraft: N352US
- Make and model: Boeing 737301
- Aircraft serial: 23555
- Engine: Cfmint CFM563B1US
- System (JASC): [5711 · Wing Spar](https://openairdocs.org/jasc/5711)
- Part: Spar
- Condition: Cracked
- Location: Lt Wing
- Part time: 45,768 hours
- 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/USAA040972

## Discrepancy

PIT - Q4 - LT SPAR UPPER CHORD, .0625 INCH CRACK; NR 2 HOLE VERTICAL LEG OF LT SPAR UPPER CHORD AT MLG SUPPORT.  INSTALLED FATIGUE ENHANCEMENT PLATE IAW EA 79286A.

---
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.