Airworthiness Directive · Amendment 39-18498 · Main rotor control
Kaman Aerospace Corporation
This AD applies to Model K-1200 helicopters, certificated in any category.
We are adopting a new airworthiness directive (AD) for Kaman Aerospace Corporation (Kaman) Model K-1200 helicopters. This AD requires revising the "Flight Limitations--NO LOAD" and "Flight Limitations-- LOAD" sections of the rotorcraft flight manual (RFM). This AD was prompted by a report of certain flight maneuvers that may lead to main rotor (M/R) blade to opposing hub contact. These actions are intended to prevent damage to the M/R flight controls and subsequent loss of control of the helicopter.
You are responsible for performing each action required by this AD within the specified compliance time unless it has already been accomplished prior to that time.
Within 10 hours time-in-service, revise Section 2 Limitations of the Kaman K-1200 Rotorcraft Flight Manual (RFM) by inserting a copy of this AD into the RFM or by making pen-and-ink changes, as follows:
(1) In the “Flight Limitations—NO LOAD” and “Flight Limitations—WITH LOAD” sections, add the information in Figure 1 to paragraph (e)(1) of this AD.
(2) In the “Flight Limitations—NO LOAD” and “Flight Limitations—WITH LOAD” sections, add the following: Maximum rearward flight speed: 25 knots. Maximum sideward flight speed: 17 knots. Weather-vanning takeoffs/departures as a method to turn aircraft: Prohibited.
Incorporating the changes contained in Kaman K-1200 RFM, Revision 5, dated April 14, 2015, before the effective date of this AD is considered acceptable for compliance with the corresponding actions specified in paragraph (e) of this AD.
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
Appliances and equipment
