Airworthiness directives › 2020-17-11
AD 2020-17-11 Airworthiness Directives; Airbus Helicopters
Applicability*9
This AD replaces AD 2017-14-05, Amendment 39-18949 (82 FR 31899, July 11, 2017) (“AD 2017-14-05”).
Compliance
(1) For helicopters with both a LH and RH hydraulic pump that is listed in paragraph (a) of this AD installed: (i) Within 15 hours time-in-service (TIS) from July 26, 2017 (the effective date of AD 2017-14-05), replace the RH hydraulic pump with an airworthy hydraulic pump that is not listed in paragraph (a) of this AD. (ii) Within 110 hours TIS from the effective date of this AD, replace the LH hydraulic pump with an airworthy hydraulic pump that is not listed in paragraph (a) of this AD. (2) For helicopters with either a LH or RH hydraulic pump that is listed in paragraph (a) of this AD installed, within 110 hours TIS from the effective date of this AD, replace the hydraulic pump with an airworthy hydraulic pump that is not listed in paragraph (a) of this AD. (3) After July 26, 2017 (the effective date of AD 2017-14-05), do not install on any helicopter a hydraulic pump that is listed in paragraph (a) of this AD.
Required actions
Special flight permits are prohibited.
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 failure of a bolt attaching the hydraulic pump cover. This condition could result in loss of fluid from the hydraulic pump, resulting in loss of the hydraulic system and subsequent loss of helicopter control.
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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