# SDR UALA2013020400681

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 2, 2013
- Submitted: February 28, 2013
- Operation: Air carrier
- Aircraft: [N122UA](https://openairdocs.org/aircraft/N122UA), registered now
- Make and model: Boeing 747422
- Aircraft serial: 29168
- Aircraft time: 56,537 hours, 6,609 cycles
- Engine: Pwa PW4056
- System (JASC): [5414 · Nacelle/Pylon, Plate/Skin](https://openairdocs.org/jasc/5414)
- Part: Skin
- Part number: 311U45435
- Condition: Cracked
- Location: Nr 3 Nacelle
- 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/UALA2013020400681

## Discrepancy

ON WALKAROUND FOUND 3 INCH CRACK ON NR 3 ENGINE PYLON PANEL.  FOUND CRACKED FROM SCREW HOLE TO EDGE ABOUT 1.5 INCH.  MM 06-09-99,PG 215 PANEL 472WR.  INTERIM REPAIRED PER ECRA 5450-02013.

---
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.