Airworthiness Directive · Amendment 39-22080 · Flight control system wiring
Robinson Helicopter Company Helicopters
This AD applies to the Robinson Helicopter Company helicopters identified in paragraphs (c)(1) through (3) of this AD, certificated in any category.
(1) Model R22 BETA helicopters, serial numbers (S/Ns) 4825 through 4857 inclusive, 4860, and 4861.
(2) Model R44 helicopters, S/Ns 2625 through 2669 inclusive, 30061, 30071 through 30080 inclusive, 30083, and 30084.
Note 1 to paragraph (c)(2): Helicopters with an R44 Cadet designation are Model R44 helicopters.
(3) Model R44 II helicopters, S/Ns 14364, 14412 through 14512 inclusive, 14514 through 14517 inclusive, 14519 through 14521 inclusive, and 14525.
The FAA is adopting a new airworthiness directive (AD) for certain Robinson Helicopter Company Model R22 BETA, R44, and R44 II helicopters. This AD was prompted by reports of intermittent or abnormal operation of the engine revolutions per minute (RPM) governor (governor). This AD requires inspecting the engine RPM sensor wiring and installing a wiring kit. The FAA is issuing this AD to address the unsafe condition on these products.
Within 15 hours time-in-service or 15 days after the effective date of this AD, whichever occurs first:
(1) For Model R22 BETA helicopters, inspect the engine RPM sensor wiring and modify the wiring connection to the airframe harness by following paragraphs 1 through 31 of the Kit Instructions in Robinson R22-series Governor & Engine RPM Sensor Connector Upgrade Kit Instructions, KI-288 Revision A, dated February 23, 2022, except you are not required to discard parts.
(2) For Model R44 and R44 II helicopters, inspect the engine RPM sensor wiring and modify the wiring connection to the airframe harness by following paragraphs 1 through 41 of the Kit Instructions in Robinson R44-series Governor & Engine RPM Sensor Connector Upgrade Kit Instructions, KI-287 Revision A, dated February 23, 2022, except you are not required to discard parts.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
