Airworthiness directives › 2021-17-13
AD 2021-17-13 Airworthiness Directives; PZL Swidnik S.A. Helicopters
Models named: PZL W-3A. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to PZL Swidnik S.A. Model PZL W-3A helicopters, certificated in any category, with a rescue hoist installed.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
(1) Within 30 days after the effective date of this AD, modify the LH MLG leg by installing shield assembly part number (P/N) 37.96.204.00.00. Note 1 to paragraph (g)(1): A sketch of the installation of shield P/N 37.96.204.01.00 and clamps P/N MS21920-35, which together constitute shield assembly P/N 37.96.204.00.00, is available in Attachment 1, of WYTWÓRNIA SPRZĘTU KOMUNIKACYJNEGO “PZL-Świdnik” Spółka Akcyjna Mandatory Bulletin No. BO-37-18-301, dated December 10, 2018. (2) As of the effective date of this AD, do not install a rescue hoist unless the action required by paragraph (g)(1) of this AD has been accomplished concurrently with the rescue hoist installation or within 30 days after the effective date of this AD, whichever occurs later.
Unsafe condition
This AD was prompted by a report of a damaged wheel braking system pneumatic line fitting installed on the left-hand (LH) main landing gear (MLG) leg. The FAA is issuing this AD to prevent damage to MLG pneumatic wheel braking system. The unsafe condition, if not addressed, could result in loss of MLG wheel braking capability, and subsequent loss of control of the helicopter during a roll-on landing.
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