Airworthiness directives › 2022-11-12
AD 2022-11-12 Airworthiness Directives; Viking Air Limited (Type Certificate Previously Held by Bombardier, Inc. and de Havilland, Inc.) Airplanes
Models named: DHC-6-1, DHC-6-100, DHC-6-200, DHC-6-300, DHC-6-400. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Viking Air Limited (Type Certificate Previously Held by Bombardier Inc. and de Havilland, Inc.) Model DHC-6-1, DHC-6-100, DHC-6-200, DHC-6-300, and DHC-6-400 airplanes, serial numbers 001 through 989, certificated in any category.
Compliance
(1) For purposes of this AD, an “affected FCU pushrod assembly” is one of the following: (i) Lower FCU push rod assembly part number (P/N) C6CE1398-7; or (ii) Lower FCU push rod assembly P/N C6CE1398-3 with P/N VSC30-3A rod end bearing installed. Note 1 to paragraph (f)(1): P/N C6CE1398-7 may also be referred to as modification (MOD) 6/2347. (2) For purposes of this AD, a “serviceable FCU push rod assembly” is lower FCU push rod assembly P/N C6CE1398-9. Note 2 to paragraph (f)(2): P/N C6CE1398-9 may also be referred to as MOD 6/2484.
Required actions
Comply with this AD within the compliance times specified, unless already done.
Unsafe condition
This AD was prompted by mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI identifies the unsafe condition as binding of the rod end bearing connecting the lower fuel control unit (FCU) push rod assembly to the FCU power lever. The unsafe condition, if not addressed, could lead to the inability to reduce power on the affected engine, which could result in an in-flight engine shutdown and reduced airplane control.
Affected ADs
None.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1