Airworthiness directives › 2017-21-06
AD 2017-21-06 Airworthiness Directives; 328 Support Services GmbH (Type Certificate Previously Held by AvCraft Aerospace GmbH; Fairchild Dornier GmbH; Dornier Luftfahrt GmbH) Airplanes
Models named: 328-100, 328-300. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to 328 Support Services GmbH (Type Certificate Previously Held by AvCraft Aerospace GmbH; Fairchild Dornier GmbH; Dornier Luftfahrt GmbH) airplanes, certificated in any category, as identified in paragraphs (c)(1) and (c)(2) of this AD. (1) Model 328-100 airplanes, all serial numbers. (2) Model 328-300 airplanes, all serial numbers.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Within 6 months after the effective date of this AD, do a general visual inspection of all Hydraflow fuel line clamps for worn and missing bonding wires; do a general visual inspection of the jet pump outlet, connection part, and fuel lines for chafing marks; and for parts with chafing marks, before further flight, measure the depth of the chafing marks; in accordance with the Accomplishment Instructions of the service information specified in paragraph (g)(1) or (g)(2) of this AD, as applicable. Repeat the inspections thereafter at intervals not to exceed 2,500 flight hours. (1) 328 Support Services GmbH Alert Service Bulletin ASB-328-28-041, Revision 2, dated December 12, 2016 (for Model 328-100 airplanes). (2) 328 Support Services GmbH Alert Service Bulletin ASB-328J-28-018, Revision 2, dated December 12, 2016 (for Model 328-300 airplanes).
Unsafe condition
This AD was prompted by reports of broken bonding wires of certain fuel line clamps. We are issuing this AD to prevent the loss of bonding function, which, in combination with a lightning strike, could create a source of ignition in a fuel tank, possibly resulting in a fire or explosion and consequent loss of the airplane.
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