Airworthiness Directive · Amendment 39-14965 · Mooney Airplane Company, Inc., (Mooney) Models M20M and M20R Airplanes
Mooney Airplane Company, Inc., (Mooney) Models M20M and M20R Airplanes
This AD applies to Mooney Airplane Company, Inc., (Mooney) Model M20M airplanes, serial numbers 27-0317 through 27-0355 and Model M20R airplanes, serial numbers 29-0290 through 29-0448, that are certificated in any category.
The FAA adopts a new airworthiness directive (AD) for certain Mooney Airplane Company, Inc., Models M20M and M20R airplanes. This AD requires you to remove the upper left and upper right engine mount attaching hardware, cut out and remove the upholstery and insulation between the fuselage tubular frame and the firewall, and replace the upper left and upper right engine mount attaching hardware with the new parts kit. This AD results from failure of the engine mount attaching hardware to maintain torque as a result of firewall insulation and upholstery being compressed between the fuselage tubular frame and the firewall at the upper left and upper right engine mount attach points. We are issuing this AD to prevent the upper right and upper left engine mounting hardware from losing torque, which could result in a reduction in engine mount load carrying capability and could lead to engine mount failure.
To address this problem, you must do the following, unless already done:
| Actions | Compliance | Procedures |
|---|---|---|
| (1) Locate and retorque the upper left and upper right engine mount attaching hardware | Within the next 25 hours time-in-service (TIS) after April 9, 2007 (the effective date of this AD) | Follow Mooney Airplane Company, Inc. Service Bulletin M20-292A, dated December 22, 2006. |
| (2) Replace the old engine mount attaching hardware by doing the following: (i) Remove and discard the upper left and upper right engine mount attaching hardware; (ii) Cut out and remove the upholstery and insulation material to allow full metal-to-metal contact of the fuselage tubular frame to the firewall; and (iii) Install the new upper left and upper right engine mount attaching hardware part kits | Within the next 100 hours time-in-service (TIS) after April 9, 2007 (the effective date of this AD) | Follow Mooney Airplane Company, Inc. Service Bulletin M20-292A, dated December 22, 2006. |
| (3) If you do the actions of paragraph (e)(2) of this AD before the compliance time specified for the action in paragraph (e)(1) of this AD, it terminates the requirement for the action in paragraph (e)(1) of this AD | As of April 9, 2007 (the effective date of this AD) | Follow Mooney Airplane Company, Inc. Service Bulletin M20-292A, dated December 22, 2006. |
(f) Compliance will be acceptable if the above actions are accomplished by following the procedures described in Mooney Airplane Company, Inc. Service Bulletin M20-292, dated September 22, 2006. You may take “unless already done” credit, and no further action per this AD is necessary.
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
