Service difficulty report · Windshield · Boeing 757222

Difficulty date
January 16, 2001
Submitted
March 2, 2001
Operation
Air carrier
Aircraft
N573UA
Make and model
Boeing 757222
Aircraft serial
26685
Aircraft time
28,115 hours, 10,336 cycles
Engine
Pwa PW2037
Part
Windshield
Part number
141W74002
Part serial
95116H7053
Condition
Cracked
Location
Cockpit
Stage of operation
CR
How discovered
V
Nature of condition
J
Precautionary procedure
A

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

What was found

RIGHT WINDSHIELD OUTER PANE CRACKED. RIGHT WINDOW HEAT EICAS MESSAGE. *S/D* WINDOW FINDINGS: 1) SLIGHT MOISTURE INGRESSION ON UPPER BUS BAR BY SENSOR WIRES. 2) BUS BARS IN GOOD CONDITION, SLIGHT DISCOLORATION. 3) HUMP SEAL REPAIR HISTORY, MINIMAL EROSION, BUT IN GOOD CONDITION. 4) INTERLAYER LEAKAGE THROUGH CRACKS DUE TO WINDOW HEAT LEFT ON AFTER WINDOW FAILURE. CAUSE OF FAILURE WAS DETERMINED TO BE FOD. FOD WAS NOTED 2.5 INCHES FROM LOWER BUS BAR, 14 INCHES FROM FWD EDGE. BREAKAGE PATTERN FANNED OUT FROM FOD ORIGIN.