Service difficulty report · Landing Gear · Boeing 75724APF

Difficulty date
February 13, 2025
Submitted
February 14, 2025
Operation
Air carrier
Aircraft
N423UP
Make and model
Boeing 75724APF
Aircraft serial
25325
Aircraft time
34,955 hours, 22,912 cycles
Part
Landing Gear
Part number
285T003117
Part serial
D01029
Condition
Warning Message
Location
Zone 700
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

DURING CLIMB OUT (AFTER TAKEOFF) MASTER WARNING GEAR NOT DOWN FOLLOWED WITH WARNING GEAR DOOR. AFTER REPLACEMENT OF S488 AND M983, VERIFIED GEAR NOT DOWN MESSAGE IS NOT PRESENT WITH GEAR UP AND THROTTLES ADVANCED. VERIFIED MESSAGE PRESENT WITH THROTTLES AT IDLE AND RADIO ALTITUDE 790 FEET, MESSAGE NOT PRESENT AT 810 FEET.

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