Service difficulty report · Sensing Element · Boeing 7378H4

Difficulty date
April 29, 2024
Submitted
May 3, 2024
Operation
Air carrier
Aircraft
N8671D
Make and model
Boeing 7378H4
Aircraft serial
36715
Aircraft time
28,743 hours, 13,836 cycles
Part
Sensing Element
Part number
UNKNOWN
Condition
Shorted
Location
Fire Detection
Stage of operation
DE
How discovered
O
Nature of condition
N
Precautionary procedure
O

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

What was found

WHEEL WELL FIRE LIGHT ON DECENT. INDICATION EXTINGUISHED ON GEAR EXTENTION. NO ABNORMAL SMELLS NOTED.<[01] OK TO CONTINUE PER MEL 26-4-01 SP#1 & SP#3;[02] PERFORMED BITE CHECK AND FOUND FAULT CODE 84 ?WHEEL WELL FIRE ALARM? FLAGGED. PERFORMED RESISTANCE CHECK OF DETECTOR AND FOUND DETECTOR SHORTED FROM CORE TO CASE. REPLACED WHEEL WELL OVERHEAT DETECTION SENSING ELEMENT PER AMM 26-18-02. OPS CHECK GOOD AT THIS TIME. THIS CLEARS MEL 26-4-01; SP1; SP3.

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