Service difficulty report · Fuse · Boeing 777224

Difficulty date
June 27, 2024
Submitted
June 28, 2024
Operation
Air carrier
Aircraft
N76010
Make and model
Boeing 777224
Aircraft serial
29480
Aircraft time
116,871 hours, 12,129 cycles
Part
Fuse
Part number
B21506
Condition
Failed
Location
Emergency Lights
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

R4 DOOR AREA EMERGENCY LIGHT, EXIT IDENTIFIER, EMERGENCY CROSS A ISLE AREA LIGHT AND EXIT SIGN MALFUNCTION, PERFORMED WIRING C WDM 33-51-34 REV.78, AMM 33-51-06-960-801 REV.101. CHECK AND FOUND M33408 EMERGENCY LIGHT BATTERY PACK FUSE MALFUNCT ION, REPLACED THE FUSE AND M33408 EMERGENCY LIGHT BATTERY PACK T EST FOUND NORMAL AND RELEVANT EMERGENCY LIGHT ALL NORMAL.