Lycoming Claims Fuel Aromatics May Be at Root of UND Fleet Valve Problems
The University of North Dakota had reported ‘abnormal exhaust valve recession’ before reverting back to 100LL aviation fuel.
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Flight Schools Discuss Getting the Lead Out
The recent news about the University of North Dakota returning its fleet to leaded fuel after discovering excessive valve recession in aircraft using Swift Fuels UL94 has grabbed the attention of many aircraft operators.
University of North Dakota Stops UL94 Use Following Valve Recession Concerns
UND has gone back to 100LL from UL94 after citing an issue with “exhaust valve recession” in the Lycoming engines that power its fleet.
EAGLE Initiative Shows Measured Progress, Fuel Contenders Say at Oshkosh
With four candidate fuels pursuing fleet authorization, OEMs, distributors, and airports are ready to test them.
UND Aerospace Transitions Full Fleet to Unleaded Avgas
The University of North Dakota program expects the switch to UL94 will improve maintenance costs for its aircraft and lead to more productivity for student pilots and flight instructors.
FLYING Reveals Innovation Award Series for 2023
A new award has also been established honoring Sean D. Tucker.
Update Triggers Questions on Unleaded Avgas Progress
GAMA hosted the EAGLE roundtable, bringing together stakeholders looking for more transparency and urgency.
Centennial Airport is Getting the Lead Out
The Colorado airport is the first in the state to offer UL94 unleaded aviation gas, it says.
EPA Releases Proposed Finding on Leaded AvGas
The aviation community was expecting the announcement and points to progress on unleaded fuel in the market.
As the Clock Ticks on 100LL, We Wait Nervously
While things started to come together quickly, the pause we’re all feeling now is reason for worry.
