Service Hotline

摘要

The FAA is adopting a new airworthiness directive (AD) for certain Cessna Aircraft Company (Cessna) Model 402C and 414A airplanes. This AD requires repetitively inspecting the engine mount beams for cracks and contacting Cessna for FAA-approved corrective action if cracks are found. This AD also requires sending an inspection report to the FAA and to Cessna. This AD was prompted by reports of cracks found across the engine mount beams. The FAA received reports of cracks found on the engine mount beams of certain Cessna Aircraft Company (Cessna) Model 402C airplanes. The cracks found run across the beam and extend beyond the doubler located under the aft engine mount and aft of the forward engine mount. Investigation revealed that the cause of the cracks is fatigue. The engine beam mounts of the Cessna Model 402C airplanes are the same type design as that of the Cessna Model 414A airplanes. This condition, if not detected and corrected, could result in failure of an engine mount beam and could lead to engine separation with consequent loss of power and loss of control. The FAA is issuing this AD to correct the unsafe condition on these products. gov by searching for and locating Docket No. FAA-2015-0839, or you may see ADDRESSES at the same Web site for other ways to access this service information. DATES: This AD is effective April 24, 2015.