MEMBER ALERT: AOPA is closed today, March 5, due to inclement weather. We will reopen March 6 at 8:30 a.m. Eastern.
April 8, 2010
By Alton K. Marsh
The FAA has proposed an airworthiness directive concerning blow-by oil separators on Thielert engines. There are 250 Thielert engines installed on airplanes of U.S. registry.
No problems have occurred, but the European Aviation Safety Agency (EASA) is concerned that the outlet of the separators is so small it could cause high pressure of the gases in the crankcase. That in turn might blow an oil seal, causing the engine to lose oil and requiring an in-flight shutdown.
The proposed solution, if the AD is issued, will be to remove certain part-number oil separators from service at an estimated cost of $1,500 per engine. Nationwide, the total expenditure could be in excess of $400,000. Because Thielert was in bankruptcy when the initial service bulletin was issued in 2008, it is not required to reimburse customers for the repair.
Those wishing to comment on the proposed AD have until May 20 to respond. Either file comments electronically and follow the instructions or mail to Docket Management Facility, U.S. Department of Transportation, 1200 New Jersey Avenue, SE., West Building Ground Floor, Room W12-140, Washington, DC 20590-0001.
AOPA Pilot Senior Editor Alton Marsh has been a pilot since 1970 and has an airline transport pilot certificate and instrument and multiengine flight instructor certificates, aerobatic training, and a commercial seaplane certificate.
March 6, 2015 ePilot Training Tip: 'Clarification and amendment'
March 6, 2015 ePilot: Medical reform call to action; ATC assists
Actor, pilot, and general aviation advocate Harrison Ford was hospitalized March 5 after sustaining injuries in an airplane accident at a California golf course, according to multiple news reports.
VOLUNTEER AT AN AOPA FLY-IN NEAR YOU!
SHARE YOUR PASSION. VOLUNTEER AT AN AOPA FLY-IN. CLICK TO LEARN MORE >>>
VOLUNTEER LOCALLY AT AOPA FLY-IN! CLICK TO LEARN MORE >>>
BE A PART OF THE FLY-IN VOLUNTEER CREW! CLICK TO LEARN MORE >>>