Service difficulty report · Sensor · Boeing 7879

Difficulty date
August 9, 2025
Submitted
August 14, 2025
Operation
Air carrier
Aircraft
N27957
Make and model
Boeing 7879
Aircraft serial
36409
Aircraft time
45,424 hours, 4,351 cycles
Part
Sensor
Condition
Faulted
Location
Zone 300
Part time
46,460 hours, 4,432 cycles
Stage of operation
TX
How discovered
O
Nature of condition
F
Precautionary procedure
D

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

What was found

STABILIZER CONTROL CHANNEL (L2) HAS BEEN DEFERRED IN COMPLIANCE WITH MEL CARD 27105. DEACTIVATED THE INOPERATIVE STAB CONTROL CHANNEL AS REQUIRED ON CARD 27105, IAW AMM DDG 27-41-03. INSTALLED INOPERATIVE STICKER ADJACENT TO AFFECTED L2 STAB CUTOUT SWITCH ON FWD CONTROL STAND. REPLACED HORIZONTAL STAB POSITION SENSOR 2 IAW AMM DMC-B787-A-27-48-01-00A-520A-A GROUND TEST PASSED.

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