Equipment Airworthiness Directives (ADs)

Transport Canada (TC) endeavours to send copies of new Airworthiness Directives (ADs), which are applicable in Canada to the registered owners of the affected products. Equipment/appliance ADs are often only distributed to our regional offices because the owners of aircraft affected by this type of AD are not generally known.

Aircraft Maintenance Engineers (AMEs) and operators of the affected products are encouraged to obtain further information or a copy of the ADs from their regional TC office, their local Transport Canada Centre (TCC), their Principal Maintenance Inspector (PMI), or from the Civil Aviation AD website at:

Manufacturer AD Number Origin Description
13-11-2012 United States Cracked aft crosstube.
Aviation Specialties
STC SH11-45
11-12-2012 United States Glare and reflections that could degrade the pilot's view through night vision goggles.
Dart Aerospace
STC IM.R.S.01304
STC SH01-9
CF-2012-14 Canada Crosstubes – Life Limitation
de Havilland - Canada 9-11-2012 United States Chemical Oxygen Generators Not Adopted in Canada
Engine Technologies
13-10-2012 United States Fractures in starter adapter gear shafts
Goodyear 1-05-2012 Brazil Tread separations and tread-area bulges on the main landing gear tire.
Hartzell Engine
2012-10-52 United States Hartzell Engine Technologies (HET) - incorrectly located oil passages in the center housing causing insufficient oil flow to the bearings
Simmonds Precision
STC SA02-79
17-08-2012 United States Fuel Quanity Indicator - Corrosion on Analog Transient Suppression
Devices (ATSD)
Société de Motorisation
STC 10013975
STC EASA.A.S.00774
2012-0075-E Europe Powerplant – Turbocharger and Intercooler Hoses – Replacement
Timken Alcor 10-09-2012 United States Parts manufacturing approval (PMA) replacement sun gear and planet gears in the propeller reduction gearbox assembly.
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