Service difficulty report · Control Unit · Boeing 7878

Difficulty date
June 25, 2024
Submitted
June 26, 2024
Operation
Air carrier
Aircraft
N27908
Make and model
Boeing 7878
Aircraft serial
36400
Aircraft time
42,675 hours, 5,189 cycles
Part
Control Unit
Part number
100260103
Condition
Inoperative
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

WHILE COMPLYING WITH WELS AHM ON LP 8396444, FOUND EMERGENCY EXIT LIGHTS INOP AT DOOR 2L. REPLACED WCU M3351003 REF. AMM 33-51-07. INSTALLED WITH ORIGINAL BATTERY DOM 5\2022 (SEE PHOTO). OPS CHECKS GOOD.

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