# SDR CA110517005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 15, 2011
- Submitted: September 9, 2011
- Operation: Air carrier
- Make and model: Boeing 737-500
- Registry model: [Boeing 737-500](https://openairdocs.org/model/boeing-737-500) (OpenAirDocs)
- Aircraft time: 43,339 hours
- Engine: Cfmint CFM563C1
- System (JASC): [5610 · Flight Compartment Windows](https://openairdocs.org/jasc/5610)
- Part: Windshield
- Part number: 5893543139
- Condition: Broken
- Location: Cockpit
- Stage of operation: CR
- How discovered: V
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA110517005

## Discrepancy

IN CRUISE FLIGHT AT FL 360, THE CAPTAINS NR 1 WINDSCREEN, OUTER GLASS LAYER SHATTERED. THE CREW DIVERTED, A RESCUE AIRPLANE, WITH MX ON BOARD WAS SENT. MX INSPECTED THE DAMAGED WINDOW AND DETERMINED THE OUTER GLASS LAYER (NON-STRUCTURAL) WAS CRACKED AND THERE WAS EVIDENCE OF ELECTRICAL ARCING BETWEEN THE NON-STRUCTURAL OUTER GLASS AND NON-STRUCTURAL URETHANE INTERLAYER. THE WINDOW HEAT WAS MEL`ED AND THE AIRPLANE WAS FLOWN NON-REVENU,  WHERE THE WINDOW WAS REPLACED. THE ACFT FLIGHT MANUAL, NON-NORMAL CHECKIST (SECTION 3.2, PG 8) STATES "THERE ARE NO RESTRICTIONS WHEN AN OUTER PANEL ALONE IS CRACKED." ALSO, THE AMM 56-11-00 ALSO PROVIDES SIMILAR RELIEF.

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