airworthiness · Rule · Final rule. · Published 2021-09-07 · Effective 2021-10-12 · 86 FR 49907
Document
Document number
2021-19037
Federal Register citation
86 FR 49907
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Hélicoptères Guimbal
Publication date
2021-09-07
Effective date
2021-10-12
FAA docket
Docket No. FAA-2021-0498
Abstract
The FAA is adopting a new airworthiness directive (AD) for H[eacute]licopt[egrave]res Guimbal Model Cabri G2 helicopters with any metal bushing installed on the main rotor (M/R) swashplate guide bellcrank. This AD was prompted by a report of cracks discovered on the M/R scissor link during scheduled maintenance on several helicopters. This AD requires removing all metal bushings from service, visually inspecting the lug bore area and depending on the inspection results, removing certain parts from service and installing certain part- numbered plastic bushings. This AD also prohibits installing any metal bushing on any helicopter. The FAA is issuing this AD to address the unsafe condition on these products.