Service difficulty report · Window · Boeing 75724APF

Difficulty date
June 17, 2026
Submitted
June 18, 2026
Operation
Air carrier
Aircraft
N402UP
Make and model
Boeing 75724APF
Aircraft serial
23724
Aircraft time
39,699 hours, 27,070 cycles
Part
Window
Part number
141T480149
Part serial
19211H1611
Condition
Arced
Location
Zone 200
Stage of operation
IN
How discovered
V
Nature of condition
B
Precautionary procedure
K

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

What was found

L1 WINDOW ARCING IN LEFT TOP CORNER INSTALLED L1 WINDSHIELD REF MM 56-11€“01-424-015 UP TO AND INCLUDING STEP 3.E.(13). FIRST TORQUE ACCOMPLISHED AT 1400L. COMPLETED SECOND AND THIRD TORQUE AT !900 AND SEALED. CONNECTED SENSORS AND WIRES TO WINDSHIELD AND TORQUED PER AMM 56-11-01-004. COMPLETED FINAL TORQUE AT 2330. PERFORMED WINDOW HEAT TEST PER AMM 30-41-00-715, TEST OK. COMPLIED WITH WINDSHIELD WIPER OPERATION TEST PER AMM 30-42-00-501.

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