We would like to have a local avionics shop (Penn Avionics) install wiring terminating in a standard Garmin plug which can then be plugged into a Garmin 496 which is temporarily mounted with an adjustable clamp. The avionics shop says a 337 is not needed and that all that is required is to tie the wiring into the bus through a fuse and then to make a logbook entry to that effect. Under this scenario, the 496 is easily removed at will.
Penn Avionics says they were explicitly instructed by the both the Allentown and Philly FSDO's that they would not process 337's for this kind of minor alteration.
Our local A&P-IA says that he will not sign off on an annual if this work is done without a 337. Are we missing something here? Does he possibly know something we don't?
Any help would be appreciated!
Penn Avionics says they were explicitly instructed by the both the Allentown and Philly FSDO's that they would not process 337's for this kind of minor alteration.
Our local A&P-IA says that he will not sign off on an annual if this work is done without a 337. Are we missing something here? Does he possibly know something we don't?
Any help would be appreciated!