Guimbal Cabri G2

Airworthiness Directives; Hélicoptères Guimbal Helicopters

The FAA is adopting a new airworthiness directive (AD) for all H[eacute]licopt[egrave]res Guimbal (HG) Model Cabri G2 helicopters. The FAA previously sent this AD as an emergency AD to all known U.S. owners and operators of these helicopters. This AD was prompted by a report that was received of a crack on the main rotor (MR) mast after the crew reported an abnormal increase of vibration. This AD requires inspecting the MR mast for cracks and corrosion pitting, and depending on the results of the inspection, accomplishing corrective actions. This AD also requires modifying the MR mast, which includes applying corrosion protection to the MR mast, reporting the inspection results and prohibiting the installation of a certain main gear box (MGB), unless certain requirements are met. The FAA is issuing this AD to address the unsafe condition on these products.

Airworthiness Directives; Hélicoptères Guimbal Helicopters

The FAA is adopting a new airworthiness directive (AD) for all H[eacute]licopt[egrave]res Guimbal (Guimbal) Model Cabri G2 helicopters. This AD was prompted by reports of cracked main rotor swashplates (swashplates). This AD requires repetitively inspecting certain swashplates for cracks and, depending on the results, removing and replacing each cracked swashplate. This AD also prohibits installing an affected swashplate unless it has passed the inspection requirements. The FAA is issuing this AD to address the unsafe condition on these products.

Airworthiness Directives; Hélicoptères Guimbal Helicopters

The FAA is superseding Airworthiness Directive (AD) 2023-24-51 which applied to all H[eacute]licopt[egrave]res Guimbal Model Cabri G2 helicopters. AD 2023-24-51 was prompted by reports of a crack in the pilot cyclic stick base and required repetitively inspecting certain part-numbered pilot and co-pilot cyclic stick bases and, depending on the results, corrective action. AD 2023-24-51 also prohibited installing those pilot and co-pilot cyclic stick bases unless certain requirements were met. Since the FAA issued AD 2023-24-51, more cracks in the cyclic stick bases have been reported, including a crack in a cyclic stick base that had accumulated only 700 hours time-in-service (TIS). This AD requires the same actions as AD 2023-24-51 but reduces the compliance time for performing the initial inspection. These actions are specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA previously sent this AD as an emergency AD to all known U.S. owners and operators of these helicopters. The FAA is issuing this AD to address the unsafe condition on these products.

Airworthiness Directives; Hélicoptères Guimbal Helicopters

The FAA is superseding Airworthiness Directive (AD) 2021-02- 20, which applied to certain H[eacute]licopt[egrave]res Guimbal (HG) Model Cabri G2 helicopters. AD 2021-02-20 required initial and repetitive inspections of certain rotating and non-rotating scissor fittings, and depending on the results, replacing the affected assembly. AD 2021-02-20 also prohibited installing certain main rotor hubs (MRHs) and swashplate guides unless the initial inspection was accomplished. This AD was prompted by a report of a crack in a rotating scissor fitting. This AD retains certain requirements of AD 2021-02-20, and requires installation of newly designed parts, provides a terminating action for the initial and repetitive inspections, and revises the applicability. This AD also extends the repetitive inspection interval and prohibits installing certain MRHs and swashplate guides. The FAA is issuing this AD to address the unsafe condition on these products.

Airworthiness Directives; Hélicoptères Guimbal Helicopters

The FAA is adopting a new airworthiness directive (AD) for H[eacute]licopt[egrave]res Guimbal (HG) Model Cabri G2 helicopters. This AD was prompted by the determination that certain parts need life limits and certification maintenance requirement (CMR) tasks. This AD requires establishing life limits and CMR tasks for various parts and removing any parts from service that have reached or exceeded their life limits. Depending on the results of the CMR tasks, this AD requires corrective action. The FAA is issuing this AD to address the unsafe condition on these products.

Airworthiness Directives; Hélicoptères Guimbal Helicopters

The FAA is adopting a new airworthiness directive (AD) for H[eacute]licopt[egrave]res Guimbal (HG) Model Cabri G2 helicopters with certain part-numbered aluminum cooling fans (cooling fan) installed. This AD was prompted by a report of an occurrence of an in-flight shutdown due to a crack and subsequent failure of the cooling fan. This AD requires removing certain part-numbered cooling fans from service, or modifying certain part-numbered cooling fans before exceeding a certain total hours time-in-service (TIS), and installing newly designed cooling fans. This AD also prohibits installing any affected cooling fan on any helicopter. The FAA is issuing this AD to address the unsafe condition on these products.

Airworthiness Directives; Hélicoptères Guimbal Helicopters

The FAA is adopting a new airworthiness directive (AD) for certain H[eacute]licopt[egrave]res Guimbal Model CABRI G2 helicopters. This AD was prompted by a report that, during scheduled maintenance on two helicopters, cracks were found on a certain main rotor (MR) non- rotating scissor link. This AD requires replacing an affected MR non- rotating scissor link with a serviceable part. The FAA is issuing this AD to address the unsafe condition on these products.

Airworthiness Directives; Hélicoptères Guimbal Helicopters

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.