Service difficulty report · Fuse · Boeing 7378H4

Difficulty date
April 4, 2026
Submitted
April 8, 2026
Operation
Air carrier
Aircraft
N8608N
Make and model
Boeing 7378H4
Aircraft serial
36638
Aircraft time
43,961 hours, 21,198 cycles
Part
Fuse
Condition
Inoperative
Location
Zone 200
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

FORWARD SERVICE DOOR LIGHT ASSEMBLY L1186 DOES NOT ILLUMINATE DURING EMERGENCY LIGHTING TEST.<[01] TROUBLESHOT TO FAULTY FUSE IN M2816 POWER SUPPLY; REPLACED FUSE CONNECTED TO D14812; PIN 15 PER WDM 33-51-21; WDM 33-51-11; AND AMM 33-51-06-960-804. RELAMPED L1186 AND TESTED PER AMM 33-51-01-960-801; TEST NOW PASSES.<BR><BR>FLUKE 77IV<BR>CAL ID: PER1502; DUE: 10/26;[02] VERIFIED ACTION 1.

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