Airworthiness directives › 2021-26-15
AD 2021-26-15 Airworthiness Directives; Vulcanair S.p.A. Airplanes
Makes named: vulcanair. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Vulcanair S.p.A. (Vulcanair) Model P.68C, P.68C-TC, P.68 “OBSERVER,” P.68 OBSERVER 2, P.68R, and P.68TC OBSERVER airplanes, serial numbers 333, 337 to 339 inclusive, 378, 379, and 383 and larger (except serial numbers 387 and 398), certificated in any category, with a stabilator trim control cable part number 5.6067-1, 5.6161-1, 5.6171-1, 5.6231-2, or 5.6231-4 installed.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Before a stabilator trim control cable part number 5.6067-1, 5.6161-1, 5.6171-1, 5.6231-2, or 5.6231-4 accumulates more than 400 hours time-in-service (TIS) since first installation on an airplane or within 50 hours TIS after the effective date of this AD, whichever occurs later, and thereafter at intervals not to exceed 50 hours TIS, visually inspect the stabilator trim control cable for broken wires and replace the stabilator trim control cable before further flight if there is broken wire in a strand in accordance with steps 1 through 22 of Part 2 Work Procedure in Vulcanair S.p.A. P.68 Variants Service Bulletin No. 263, dated October 20, 2020.
Unsafe condition
This AD was prompted by a damaged stabilator trim control cable connected to the stabilator trim actuator assembly, mounted on fuselage frame No. 16. The FAA is issuing this AD to detect and address failure of a stabilator trim control cable, which could prevent trim surface control thereby leaving the cable remaining in the last position. The unsafe condition, if not addressed, could result in reduced control 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