Wrong plane crash - wrong decade. LEDs were replacing
incandescent lamps in the 1970s. The technology is that old.
You are confusing what I think was a 737 Valujet crash with a
previous Eastern Airlines L1011 crash. The L1011 crash
occurred when flight crew was distracted by what turned out to
only be a burned out light bulb. Solution - replace all
327(?) light bulbs with LED equivalents. Valujet was only two
people in the cockpit. The L-1011 crew was a three man
cockpit crew with one down in the hell hole trying to resolve
a landing gear problem when that plane crashed.

Don Klipstein wrote:
The famous plane crash into the Everglades made the newspapers as
being blamed on a different cause:

A few medical type oxygen generators were in the cargo hold, and at
least one was actually running.
I forget whether due to malfunction or normal operation, but for
either of these reasons some part or parts of one of the oxygen
generators reached a temperature on the low end of being able to
cause adjacent combustible materials to catch fire, and that started
a fire in the cargo hold.
...