Test D

PINPOINT TEST D: THE LH MAP LAMP, RH MAP LAMP STAYS ON CONTINUOUSLY

Test D1:

Normal Operation
Power to the map lamps is supplied through circuit 29S-LB19 (OG/BU). Ground for the map lamps is supplied through circuit 31-LB19 (BK/BU) to the LH cowl ground. The lamp and switch can only be replaced as an assembly.

Possible Causes
- dome/map lamp switches