Airworthiness directives › 2019-05-05
AD 2019-05-05 Airworthiness Directives; Airbus Helicopters Deutschland GmbH (Previously Eurocopter Deutschland GmbH) Helicopters
Applicability*9
This AD replaces AD 97-26-03, Amendment 39-10246 (62 FR 65750, December 16, 1997).
Compliance
(1) Before further flight, and thereafter at intervals not to exceed 100 hours time-in-service, visually inspect the flange in the ribbed area for cracks using a 5-power or higher magnifying glass in accordance with paragraphs 2.A.1 and 2.A.2 of the Accomplishment Instructions in Airbus Helicopters Alert Service Bulletin No. ASB-MBB-BK 117-10-114, Revision 1, dated July 28, 2017. (2) If a crack is found as a result of the inspections specified in paragraph (f)(1) of this AD, remove the cracked M/R mast and replace it with an airworthy M/R mast.
Required actions
Actions accomplished before the effective date of this AD in accordance with the procedures specified in AD 97-26-03, Amendment 39-10246 (62 FR 65750, December 16, 1997), are acceptable for compliance with the corresponding actions specified in paragraphs (f)(1) and (f)(2) of this AD.
Unsafe condition
You are responsible for performing each action required by this AD within the specified compliance time unless it has already been accomplished prior to that time.
Affected ADs
This AD defines the unsafe condition as a crack in an M/R mast flange. This condition could result in failure of the mast flange and subsequent loss of helicopter control.
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