A line mechanic reports finding a mid lavatory (lav) light lens bonded in place and no electrical wi...

Narrative:

Inbound flight showing logbook [item] # 3 on ACARS (mid lavatory light inoperative for mid lav). We were expecting a simple re-lamp job. What we found was the light lens bonded in place. After removing the lense; we pulled out the light assembly to find no wiring in place. At this point; we started searching for the wires. We had to disassemble the overhead [ceiling] of the lavatory module to find the wires hanging between the galley module and the [inner] fuselage. When I grabbed the wires to move them; I found them to be 'hot' (power on). We killed [electrical] power to the plane and fished the wires through the conduit and re-assembled the lights reference wiring diagram manual (wdm) 33-26-21. After reapplying [electrical] power; we checked lights and found lights to be operationally good. We then reassembled aircraft and sent the B757-200 aircraft on it's way. Not ETOPS.

Original NASA ASRS Text

Title: A Line Mechanic reports finding a Mid lavatory (lav) light lens bonded in place and no electrical wiring attached. Further trouble shooting located the 'Hot' (power on); electrical wires hanging between the Galley module and the inner fuselage.

Narrative: Inbound flight showing Logbook [item] # 3 on ACARS (Mid lavatory light inoperative for Mid lav). We were expecting a simple re-lamp job. What we found was the light lens bonded in place. After removing the lense; we pulled out the light assembly to find no wiring in place. At this point; we started searching for the wires. We had to disassemble the overhead [ceiling] of the Lavatory module to find the wires hanging between the Galley module and the [inner] fuselage. When I grabbed the wires to move them; I found them to be 'Hot' (Power on). We killed [electrical] power to the plane and fished the wires through the conduit and re-assembled the lights reference Wiring Diagram Manual (WDM) 33-26-21. After reapplying [electrical] power; we checked lights and found lights to be operationally good. We then reassembled aircraft and sent the B757-200 aircraft on it's way. Not ETOPS.

Data retrieved from NASA's ASRS site as of July 2013 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Attributes
ACN	1028924
Time
Date	201208
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Daylight
Aircraft 1
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Flight Phase	Parked
Component
Aircraft Component	Cabin Lighting
Person 1
Function	Technician
Qualification	Maintenance Airframe Maintenance Powerplant
Events
Anomaly	Aircraft Equipment Problem Critical Deviation - Procedural Maintenance Deviation - Procedural Published Material / Policy

A line mechanic reports finding a mid lavatory (lav) light lens bonded in place and no electrical wiring attached. Further trouble shooting located the 'hot' (power on); electrical wires hanging between the galley module and the inner fuselage.