Service difficulty report · Test Button · Boeing 76734AF

Difficulty date
June 8, 2026
Submitted
June 9, 2026
Operation
Air carrier
Aircraft
N342UP
Make and model
Boeing 76734AF
Aircraft serial
37865
Aircraft time
35,908 hours, 13,383 cycles
Part
Test Button
Part number
233T620416
Part serial
F01653
Condition
Inoperative
Location
Zone 200
Stage of operation
IN
How discovered
C
Nature of condition
L
Precautionary procedure
K

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

What was found

WHEEL WELL FIRE DETECTION TEST DOESN'T WORK WHEN TEST BUTTON IN FLIGHTDECK PRESSED. T/S CARRIED OUT IAW FIM 26-17 FAULT TREE 803 REV. 148. FOUND WHEELWELL FIRE TEST BUTTON U/S. FIRE/OVERHEAT TEST PANEL REPLACED IAW AMM 26-11-01 PB. 401 REV. 148. POST INSTALLATION TEST SATIS.

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