# SDR USAA200612001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 2, 2006
- Submitted: December 4, 2006
- Operation: Air carrier
- Aircraft: N445US
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 24863
- Aircraft time: 44,153 hours, 31,124 cycles
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Condition: Cracked
- Location: Bs 727d S23l
- 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/USAA200612001

## Discrepancy

A 1.75 INCH LONG CRACK FOUND AT STA 727D, BELOW S-23L.  REMOVED DAMAGE, INSTALLED A DOUBLER, TRIPLER AND ASSOCIATED REPAIR PARTS PER TR 53-60-03A AND SRM 53-00-01 REPAIR 31.

---
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, except the copies of manufacturers’ service documents, which belong to their rights holders.