Airworthiness Directive

AD 2021-20-11 Citation not yet captured

Federal Aviation Administration · 14 CFR part 39

FR document
2021-22469
Published
2021-10-18
Models covered
1
Last live check
Not yet re-verified
AD

2021-20-11

FR doc 2021-22469

AD 2021-20-11Published 2021-10-18Effective 2021-11-22

Requires a one-time inspection of the lower surface of the spherical bearing in the directional control bellcrank assembly to determine if it is properly staked and, depending on the findings, applicable corrective actions.

Full official abstract

The FAA is adopting a new airworthiness directive (AD) for certain Bell Textron Canada Limited (type certificate previously held by Bell Helicopter Textron Canada Limited) Model 429 helicopters. This AD was prompted by reports of incorrectly staked spherical bearings in the directional control bellcrank assembly. This AD requires a one-time inspection of the lower surface of the spherical bearing in the directional control bellcrank assembly to determine if it is properly staked and, depending on the findings, applicable corrective actions. For certain helicopters, this AD also requires repetitive inspections and, depending on the findings, applicable corrective actions. This AD also provides a terminating action for the repetitive inspections. The FAA is issuing this AD to address the unsafe condition on these products.

Applies to 1 model in our index