Map light circuit. 1976 P337

[frank.oconnor19]

So. Just recently got plane back from annual. The map light breaker keeps popping. Even when nothing other than the master is on.


They did two things during annual that may be the issue. PTT switch in pilots yoke and new oxygen generators. Both are very close to the lighting in overheard and on yoke. Any other ideas? I pulled all of the post lights thinking that might isolate the issue. But cannot track down the other items.