AircraftDirectives
Airworthiness Directive

AD 2018-10-06 Amendment 39-19281

Federal Aviation Administration · 14 CFR part 39

FR document
2018-10491
Amendment
39-19281
Published
2018-05-21
Models covered
1
Last live check
Not yet re-verified

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AD

2018-10-06

FR doc 2018-10491

AD 2018-10-06Published 2018-05-21Effective 2018-06-25

Requires repetitive inspections of the tail rotor (TR) driveshaft segment assemblies and a torque check of the TR adapter retention nuts.

Full official abstract

We are adopting a new airworthiness directive (AD) for Bell Model 407 helicopters. This AD requires repetitive inspections of the tail rotor (TR) driveshaft segment assemblies and a torque check of the TR adapter retention nuts. This AD was prompted by a report of an in- flight failure of the TR drive system. The actions of this AD are intended to detect and correct an unsafe condition on these products.

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Applies to 1 model in our index