Service difficulty report · Windshield · Boeing 737500*

Difficulty date
May 15, 2011
Submitted
September 9, 2011
Operation
Air carrier
Make and model
Boeing 737500*
Aircraft time
43,339 hours
Engine
Cfmint CFM563C1
Part
Windshield
Part number
5893543139
Condition
Broken
Location
Cockpit
Stage of operation
CR
How discovered
V
Nature of condition
O
Precautionary procedure
A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

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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