Airworthiness Directive · Amendment 39-19528 · Air conditioning system wiring
Air Comm Corporation Air Conditioning Systems
This AD applies to the following helicopters, certificated in any category:
(1) Airbus Helicopters Model AS350B, AS350B1, AS350B2, AS350B3, AS350BA, AS350C, AS350D, and AS350D1 helicopters with an Air Comm air conditioning system part number (P/N) AS350-202-1, AS350-202-2, AS350-202-3, AS350-202-4, AS350-202-5, AS350-204-1, AS350-204-2, AS350-204-3, AS350-204-4, AS350-204-5, AS350-204-6, AS350-204-7, AS350-204-8, AS350-204-9, AS350-204-10, AS350-204-11, or AS350-204-12 installed.
(2) Airbus Helicopters Model EC130B4 helicopters with an Air Comm air conditioning system P/N EC130-202-1, EC130-202-2, EC130-202-3, EC130-202-4, EC130-202-5, EC130-202-6, EC130-202-7, or EC130-202-8 installed.
(3) Bell Helicopter Textron Canada Limited (Bell) Model 206A, 206B, 206L, 206L-1, 206L-3, and 206L-4 helicopters with an Air Comm air conditioning system P/N 206EC-200, 206EC-201, 206EC-202, 206EC-203, 206EC-204, 206EC-205, 206EC-206, 206EC-207, 206EC-208, 206EC-209, 206EC-210, 206EC-211, or 206EC-212 installed.
(4) Bell Model 407 helicopters with an Air Comm air conditioning system P/N 407 EC-201, 407 EC-202, or 407 EC-203 installed.
We are adopting a new airworthiness directive (AD) for Air Comm Corporation (Air Comm) air conditioning systems installed on various model helicopters. This AD requires replacing electrical connectors and prohibits the installation of other parts. This AD was prompted by reports of overheated connectors. The actions of this AD are intended to address an unsafe condition on these products.
You are responsible for performing each action required by this AD within the specified compliance time unless it has already been accomplished prior to that time.
(1) Within 90 hours time-in-service:
(i) For Airbus Helicopters Model AS350B, AS350B1, AS350B2, AS350B3, AS350BA, AS350C, AS350D, and AS350D1 helicopters, replace each aft evaporator blower motor connector with an Air Comm connector as depicted in Figures 2, 3, and 4 of Air Comm Service Bulletin (SB) SB AS350-1110014, Revision B, dated January 10, 2017, by using a Deutsch HDT-48-00 or an equivalent MIL-DTL22520 Type 1 crimping tool.
(ii) For Airbus Helicopters Model EC130B4 helicopters, replace each aft evaporator blower motor connector with an Air Comm connector as depicted in Figures 2, 3, and 4 of Air Comm SB EC130-6204, Revision B, dated January 10, 2017, by using a Deutsch HDT-48-00 or an equivalent MIL-DTL22520 Type 1 crimping tool.
(iii) For Bell Model 206A, 206B, 206L, 206L-1, 206L-3, and 206L-4 helicopters, replace each aft evaporator blower motor connector with an Air Comm connector as depicted in Figures 4, 5, and 6 of Air Comm SB 206-110414, Revision C, dated January 13, 2017, by using a Deutsch HDT-48-00 or an equivalent MIL-DTL22520 Type 1 crimping tool.
(iv) For Bell Model 407 helicopters, replace each aft evaporator blower motor connector with an Air Comm connector as depicted in Figures 4, 5, and 6 of Air Comm SB 407-110414, Revision D, dated January 13, 2017, by using a Deutsch HDT-48-00 or an equivalent MIL-DTL22520 Type 1 crimping tool.
(2) After the effective date of this AD, do not install the following in any aft evaporator assembly P/Ns AS350-6202-1, EC130-6204-1, or EC130-6204-2; aft evaporator blower assembly P/Ns S-6078EC-15, S-6102EC-3, or S-6102EC-4; or aft condenser blower P/Ns S-7060EC-1, S-7060EC-2, S-7062EC-1 or S-7062EC-2:
(i) Plug P/N 03-09-1022 and 03-09-1032;
(ii) Socket P/N 02-09-1103 and 02-09-1104;
(iii) Receptacle P/N 03-09-2022 and 03-09-2032; and
(iv) Pin P/N 02-09-2103.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
Appliances and equipment
