AD 2026-19-05: Hélicoptères Guimbal Helicopters

What the FAA requires

The FAA is adopting a new airworthiness directive (AD) for certain H[eacute]licopt[egrave]res Guimbal (HG) Model Cabri G2 helicopters. This AD was prompted by a report of a potential malfunction of the helicopter emergency locator transmitter (ELT) and subsequent findings of weak ELT signals on 121.5 MHz and 406 MHz frequencies due to improper antenna installation (location). This AD requires revising the existing rotorcraft flight manual (RFM) for the helicopter. The FAA is issuing this AD to address the unsafe condition on these products.

Read the full directive on the Federal Register →

Applicability

This AD applies to Hélicoptères Guimbal (HG) Model Cabri G2 helicopters having serial numbers (S/N) 1003 to 1389, except S/N 1383 and 1388, certificated in any category. (d) Subject Joint Aircraft System Component (JASC) Code 2562, Emergency locator beacon. (e) Unsafe Condition This AD was prompted by a report of a potential malfunction of the helicopter emergency locator transmitter (ELT) and subsequent findings of weak ELT signals on 121.5 MHz and 406 MHz frequencies due to improper antenna installation (location). The FAA is issuing this AD to address the safety risk posed by weak ELT signal transmissions. The unsafe condition, if not addressed, could impair the ability to d

Part numbers this directive names

This directive does not name specific part numbers in its text; it applies by aircraft model. See the applicability above and the manufacturer's service bulletin it references.