LEM - this is a QRH item on any 737-400 fitted with the elec panel, and very much as you describe it - but without the expletives. 'Old hat' to those who operate the aircraft.
The correct drill is:
Select 'TEST' on both
MAINT BUTTON - press and release.
After fault display,
MAINT BUTTON - press and release.
If message 'Hold button Clear Faults'appears,
MAINT BUTTON - push and hold.
If message ' Faults cleared' appears, OK
IF NOT, AND 'ELEC' light STAYS ON - DO NOT TAKE OFF
Quite common after a ground air start, and often can be avoided by selecting ground power OFF before connecting the engine gens after start.
We also suggest you post ALL 737 items in one post, unless, of course, you are after the posting record, or maybe there is more than one 'LEM'?
