Service difficulty report · Connector · Snias AS350B2

Difficulty date
April 27, 2012
Submitted
September 14, 2015
Operation
General aviation
Make and model
Snias AS350B2
Aircraft time
10,453 hours
Engine
Tmeca ARRIEL1D1
Part
Connector
Part number
D3899924WA35SN
Condition
Intermittent
Location
Inlet Filter
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

(CAN) AT EACH 100 HR INSPECTION, WHEN YOU DISCONNECT THE CONNECTOR PLUG, OR WHEN IT`S DISCONNECTED TO REMOVE THE ENGINE COWL, THE ELECTRICAL PINS INSIDE THE CONNECTOR PLUG PUSH AWAY FROM EACH OTHER, CAUSING A FAULTY CONNECTION, LEADING TO EITHER A LACK OF POWER SUPPLY TO THE ACTUATOR CIRCUIT OR THE DIFFERENTIAL BYPASS CIRCUIT. SHOULD THESE CIRCUITS NOT BE WORKING CORRECTLY, POSSIBLE FAILURE OF BYPASS LIGHT INDICATOR CAN OCCUR, THEREFORE NO INDICATION IS GIVEN TO THE PILOT THAT THE BYPASS DOOR HAS BEEN ACTUATED AND THE FILTER IS BEING BYPASSED. PINS WHEN SET IN THE CONNECTOR SEEM LOOSE AND FLIMSY, AND EACH TIME THE COWL IS REMOVED THEY NEED TO BE ADJUSTED AND RE-SET TO ENSURE CONTACT WHEN THE ELECTRICAL CONNECTOR IS CONNECTED. THIS OCCURS ON EACH OF THE ACFT THAT WE HAVE THE AFS FILTER KIT INSTALLED ON, REF STC SH07-55,