Engine Oil - Tank Outlet Fitting - Inspection / Replacement
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of affected Robinson R66 helicopters must visually inspect the oil tank outlet fitting color within 100 hours time-in-service. If the fitting is blue, the oil tank must be replaced before further flight. Additionally, the revision letter on the oil tank assembly ink stamp must be checked, and a G805-1 angle installed as required by the AD. Compliance with these actions is mandatory by May 17, 2019.
Summary
The Federal Register Volume 84, Number 71 Airworthiness Directive 2019-07-02 is a final rule issued by the FAA that applies to Robinson Helicopter Company Model R66 helicopters, serial numbers 0003 through 0789, 0791, 0794, and 0796. This directive requires inspection and possible replacement of the oil tank outlet fitting and installation of an oil tank angle to address broken internal baffles in the oil tank. The goal is to prevent engine failure due to loss of oil pressure and flow.
What changed
This new airworthiness directive introduces mandatory inspection of the oil tank outlet fitting color and replacement of the oil tank if the fitting is blue. It also requires determining the revision letter on the oil tank assembly ink stamp and installing a G805-1 angle on certain revision tanks to prevent baffle failure. These measures are intended to correct an unsafe condition caused by vibration-induced broken baffles inside the oil tank.
Why it matters
This directive is critical for aviation professionals because broken oil tank baffles can lead to loss of oil pressure and engine failure, posing a serious safety risk. Operators and maintenance teams must ensure compliance to avoid forced landings and potential accidents. The AD provides clear instructions to mitigate this risk, ensuring continued airworthiness and safety of affected Robinson R66 helicopters.
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New ADs and bulletins for Robinson R66, summarized like this page, every Monday.