Airworthiness Directive · Amendment 39-18710 · Turbocharging
Diamond Aircraft Industries GmbH Airplanes
This AD applies to Diamond Aircraft Industries GmbH Model DA 40 NG airplanes, all serial numbers, certificated in any category.
We are adopting a new airworthiness directive (AD) for all Diamond Aircraft Industries GmbH Model DA 40 NG airplanes. This AD results from mandatory continuing airworthiness information (MCAI) issued by the aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as possible loss of engine power and emergency landing with consequent damage to the airplane and occupant injury caused by a manufacturing quality deficiency in a batch of V-clamps that could cause the V-clamp to crack and fail. We are issuing this AD to require actions to address the unsafe condition on these products.
Unless already done, do the following actions.
(1) Within the next 50 hours time-in-service (TIS) after November 29, 2016 (the effective date of this AD) or within the next 2 months after November 29, 2016 (the effective date of this AD), whichever occurs first, and repetitively thereafter at intervals not to exceed 100 hours TIS, inspect the V-clamp following the Instructions section in Diamond Aircraft Industries GmbH (DAI) Work Instruction WI-MSB 40NG-046, dated July 14, 2016, as specified in DAI Mandatory Service Bulletin MSB 40NG-046/2, dated July 22, 2016.
(2) If any crack or incorrect installation is found during any inspection required in paragraph (f)(1) of this AD, before further flight, replace the V-clamp with an improved V-clamp, P/N D44-9081-26-03. After this replacement, continue with the 100 hour TIS repetitive inspection required in paragraph (f)(1) of this AD. Do the replacement following the Instructions section in Diamond Aircraft Industries GmbH (DAI) Work Instruction WI-MSB 40NG-046, dated July 14, 2016, as specified in DAI Mandatory Service Bulletin MSB 40NG-046/2, dated July 22, 2016.
(3) Unless already replaced as required in paragraph (f)(2) of this AD, within the next 100 hours TIS after November 29, 2016 (the effective date of this AD) or within the next 4 months after November 29, 2016 (the effective date of this AD), whichever occurs first, replace P/N E4A-41-000-002 V-clamp with an improved P/N D44-9081-26-03 V-clamp. After this replacement, continue with the 100 hour TIS repetitive inspection required in paragraph (f)(1) of this AD. Do the replacement following the Instructions section in Diamond Aircraft Industries GmbH (DAI) Work Instruction WI-MSB 40NG-046, dated July 14, 2016, as specified in DAI Mandatory Service Bulletin MSB 40NG-046/2, dated July 22, 2016.
(4) Within 10 days after each inspection required in paragraph (f)(1) of this AD, report the results to DAI at the address in paragraph (i)(3) of this AD using the Execution Report on page 3 of DAI Mandatory Service Bulletin MSB 40NG-046/2, dated July 22, 2016. If the initial inspection was done before November 29, 2016 (the effective date of this AD), then the report for this inspection is required within 10 days after November 29, 2016 (the effective date of this AD).
(5) At the following compliance times, installing a V-clamp P/N E4A-41-000-002 is prohibited.
(i) Anytime a P/N E4A-41-000-002 V-clamp is replaced with an improved P/N D44-9081-126-03 V-clamp, as required by paragraphs (f)(2) and (3) of this AD; and
(ii) As of November 29, 2016 (the effective date of this AD), if a P/N E4A-41-000-002 V-clamp is not currently installed.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
