What it does
This instrument is an Airworthiness Directive (AD) applying to a defined subset of Beechcraft Model G36 (Bonanza) aeroplanes. Mechanically, it requires two actions. First (Requirement 1), it mandates an inspection, “in accordance with Hawker Beechcraft Mandatory Service Bulletin SB 28-3967, dated June 2009,” to look for (a) improper installation of the P60 / J60 electrical connector, associated wiring and fuel line, and (b) chafing damage of the electrical wiring and fuel line. Second (Requirement 2), if either of those discrepancies is found during the inspection, the AD requires corrective work “in accordance with SB28-3967”: correct the P60 / J60 installation where improper, and replace or repair wiring or fuel line where chafed. The AD states that “Later revisions of the above SB, approved by the United States Federal Aviation Administration (FAA) as an Alternate Method of Compliance (AMOC) to FAA AD 2009-15-01 are considered acceptable for compliance with the equivalent Requirements of this Directive.” The AD refers to FAA AD 2009-15-01 Amdt 39-15964.
The compliance timing is explicit. For the inspection (Requirement 1) the operator must carry it out “Within 10 hours time-in-service (TIS) after 27 July 2009 (the effective date of this Directive) or 6 calendar months after 27 July 2009, whichever occurs first.” For the corrective actions (Requirement 2) any necessary correction “must be accomplished ... Before further flight after the Requirement inspection.” The AD itself becomes effective on 27 July 2009 and is signed by James Coyne, Delegate of the Civil Aviation Safety Authority, dated 17 July 2009.
The stated reason for the AD is in the Background paragraph: reports of chafing between the wire harness/connector(s) and fuel line. The AD’s stated safety concern is that “This chafing could lead to fuel leaking into the cockpit and fire in the cockpit if wiring arcs through the fuel line.” The AD therefore implements a mandatory inspection and conditional repair regime, with a narrow initial compliance window and an absolute pre-flight prohibition where defects are found.