# SDR IPXA1568334

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 29, 2011
- Submitted: August 1, 2011
- Operation: Air carrier
- Aircraft: [N421UP](https://openairdocs.org/aircraft/N421UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 25281
- System (JASC): [5610 · Flight Compartment Windows](https://openairdocs.org/jasc/5610)
- Part: Window
- Part serial: 30575
- Condition: Failed
- Location: Cockpit
- 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/IPXA1568334

## Discrepancy

CAPTAINS FWD WINDOW L1 SHATTERED.  ARCING WAS OBSERVED AFTER WINDOW SHATTERED.  REMOVED AND INSTALLED CAPTAINS L1 WINDOW IAW MM 56-11-01-4 UP TO PARA E1. COMPLETE WINDOW INSTALL IAW MM 56-11-01-4.

---
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.