Just to double-check:
The Master MEL is not usable to determine airworthieness - you need a MEL and Letter of Authorization which then make up a STC for a particular aircraft.
Without that, you need to follow 91.205, Part 27/29, and the aircraft's Equipment List which is part of its Type Certificate Data Sheet. Most likely those warning lights will be listed as "required equipment" meaning that the aircraft is not airworthy without them.
Last edited by Flingwing207; 6th March 2004 at 09:29.