Green light goes out after landing

[Pete Somers]

Sound to me like you have either a rigging problem on the main gear downlock switches or the nose gear is just not making the downlock switch.
Chech the wiring around the nose gear, make sure it is good condition.

Need to jack the a/c and carry out a gear up/down cycle, if you get no green light it is very easy to operate each downlock switch or move wiring to find the problem.

Pete