Notice of Proposed Rule Making -
In accordance with Regulation 39.001, the Civil Aviation Safety Regulations 1998, the Civil Aviation Safety Authority (CASA) may issue an airworthiness directive for a kind of aircraft, or a kind of aeronautical product, if:
- an unsafe condition exists in an aircraft or aeronautical product of that kind; and
- the condition exists, or is likely to exist, or could develop, in other aircraft or aeronautical products of that kind.
CASA has received several Service Difficulty Reports (SDRs) related to burnt electrical connectors on GippsAero GA8 aeroplanes. This connector is located within the left hand wing tip and provides power to the pitot heater located on the left wing tip. GippsAero have issued a mandatory service bulletin (SB–GA8-2012-77 Issue 2) which advises operators/owners to inspect the connector at 100 hour inspection check and replace the connector if there are any signs of connector charring.
The GA8 aeroplane is certified for an Instrument Flight Rules (IFR) flight to a maximum altitude of 20000 feet. Since the aeroplane may encounter inadvertent icing conditions whilst in Instrument Meteorological Conditions (IMC), the loss of heating to the pitot system in these conditions may lead to a loss of air speed indication. This may then lead to a loss of control of the aeroplane.
How to respond
Comment period now closed.
Contact: Philip Khan, Project Leader