B757-200
Confusion; Training / Qualification
Deviation / Discrepancy - Procedural MEL / CDL; Deviation / Discrepancy - Procedural Published Material / Policy
General Maintenance Action
MEL; Human Factors
Pilot inbound write up for Left Engine Hydraulic on and Center Electric 1 Hydraulic lights on overhead panel extinguished in flight. Myself and the Local Technician applied MEL 33-11-01 to both of the above inbound write-ups considering the write-ups for both [were] for the background lighting for both of the switches per the B757 AMM [Aircraft Maintenance Manual] and wiring manual; but the above MEL mentions that in the remarks that the individual switches cannot be MEL'd. It must be noted that this light is controlled by the rheostat after it is pushed in and is only an info light for the crew. The MEL was updated and not given the proper consideration when updated for what is the function of each light.
A Maintenance Technician applied a Minimum Equipment List (MEL) reference to the pilot log write-ups for panel lighting but was confused by the restriction against using the MEL reference for individual switch lights.