Airworthiness Directive 2016-06124
one-timeAirworthiness Directives; Pratt & Whitney Canada Corp. Turboprop Engines
What this AD requires
We are adopting a new airworthiness directive (AD) for certain Pratt & Whitney Canada Corp. (P&WC) PT6A-60AG, -65AG, -67AF, and -67AG turboprop engines. This AD requires removing Woodward fuel control units (FCUs) and installing an FCU that is eligible for installation. This AD was prompted by incidents of corrosion and perforation of the two-ply Cu-Be bellows in Woodward FCUs. We are issuing this AD to prevent failure of the Woodward FCU and engine, in-flight shutdown, and loss of control of the airplane.
Which aircraft AD 2016-06124 applies to
Applies to PT6A-60AG engines build standards BS919 and BS1048 in pre-S.B. PT6A-72-13402 (dated Aug 12, 2005) configuration; PT6A-65AG engines build standards BS708, BS903, BS1101, and BS1102 in pre-S.B. PT6A-72-13408 (dated July 3, 2006) configuration; and PT6A-67AF and PT6A-67AG engines; all with Woodward fuel control units (FCUs) installed.
Whether AD 2016-06124 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.
How AD compliance is recorded
A valid compliance record (14 CFR 43.9) states:
Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.
Look up a tail number →Read the full directive (Federal Register)Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.