has 15,000 + hours you should replace every M39029/56-348 contact that is installed in every connector that takes those socket contacts.

You can thanks me later.

It's gonna fix every weird intermittent glitchy problem you've been experiencing in every system that has those pins since flight hour 14,999.

You are welcome.

A.Guru.

no issues with 527 or 353's?

That's wild and wacky stuff....

Just the -348's

Occasionally the -354's if your Ahrs is wigging out.

But since you morons have no idea throwing up random numbers to be super jackazzes I'll post a pic.

These are commonly called skywatch pins by your local avionics guy.  But what he won't know, that took 30 years in the business to find out, is that after 15k hours of shake and bake in a helicopter they get wallored out, hotdog down a hallway, just like your old lady banging all the Chad's while you are all off on hitch working for the man.

They get loose as fk and make intermittent contact.  Past examples:  Hums DTU that won't record data to the data card.  DCU's with various glitches that won't isolate.  Autopilot problems that are come and go.  Fuel selector valves that won't select. And most recently, intermittent Skywatch with Baro alt input errors in the dump buffer, causing random system FAILED messages on the Gps display.

These high density contacts are found in all the airframes we fly and were a good idea 20 years ago when the systems and aircraft were brand new, but now they are a problem. 

Have fun flying around with these gremlins, I'm retiring soon, at 50.

Suckers

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good advice.