Service difficulty report · Relay · Boeing 7378H4

Difficulty date
February 14, 2024
Submitted
February 19, 2024
Operation
Air carrier
Aircraft
N8325D
Make and model
Boeing 7378H4
Aircraft serial
37003
Aircraft time
37,001 hours, 17,171 cycles
Part
Relay
Part number
UNKNOWN
Condition
Inoperative
Location
Emergency Lights
Stage of operation
IN
How discovered
9
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

FWD GALLEY AND AFT GALLEY OVERHEAD EMERGENCY EXIT LIGHTS WILL NOT TURN OFF. THESE ARE NOT THE EMERGENCY LIGHTS THESE ARE PART OF THE GALLEY ENTRY LIGHT SYSTEM. LIGHT NUMBERS IN THE WDM ARE M2810 FWD DIM ENTRY LIGHT & M2811 AFT DIM ENTRY LIGHT. THESE LIGHTS ARE ONLY POWERED WHEN GROUND POWER IS SENSED THROUGH RELAY R47 BEHIND THE P6-3 PANEL. TSR# 2024001081<[01] VERIFIED LIGHTS TO ACTUALLY BE FWD AND AFT ENTRY OVERHEAD DIM LIGHTS; NOT PART OF THE EMERGENCY LIGHT SYSTEM. OK TO CONTINUE PER MEL 33-2-04 SP1B AND SP2A. EA-24-133-00421 C/W FOR APPLICATION OF SP2A; PULLING AND COLLARING BREAKER C155 (P6-4 E9 ENTRY LIGHTS DIM). TSR# 2024001081 REQ# 834;[02] R&R EXT PWR SENS RELAY (R47) IAW SWPM 20-81-22 & WDM 33-29-11.

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