Question 1

What actions do aircraft owners and operators need to take to safely operate on the new fuel?

Eagle · Accepted Answer

It is important to note that under both the fleet authorization pathway and the supplemental type certificate (STC) pathway, aircraft owners and operators will need to take specific actions in order to safely operate using the fuel:

Implement a fleet authorization by revising the operating limitations in the flight manual on their particular aircraft and replacing the fuel placard. Detailed instructions for doing so will be included as a part of each authorization.
Implement changes to the aircraft, typically via service bulletins or installation of an STC.
- For aircraft with a standard airworthiness certificate, the alteration is performed by a certificated mechanic or authorized entity and must comply with the type certificate (TC)/STC.
- Owners of Special Light Sport Aircraft (SLSA) can implement the authorization after the SLSA aircraft manufacturer issues an authorization to do so.
- Owners of experimental aircraft must individually determine appropriate unleaded fuels. Those owners may develop their own compatibility or solicit input from the TC/STC holder for data pertinent to their aircraft. Many experimental aircraft have engines and fuel systems in common with aircraft with standard airworthiness certificates.

Question 2

What actions do aircraft owners and operators need to take to safely operate on the new fuel?

Eagle · Accepted Answer

It is important to note that under both the fleet authorization pathway and the supplemental type certificate (STC) pathway, aircraft owners and operators will need to take specific actions in order to safely operate using the fuel:

Implement a fleet authorization by revising the operating limitations in the flight manual on their particular aircraft and replacing the fuel placard. Detailed instructions for doing so will be included as a part of each authorization.
Implement changes to the aircraft, typically via service bulletins or installation of an STC.
- For aircraft with a standard airworthiness certificate, the alteration is performed by a certificated mechanic or authorized entity and must comply with the type certificate (TC)/STC.
- Owners of Special Light Sport Aircraft (SLSA) can implement the authorization after the SLSA aircraft manufacturer issues an authorization to do so.
- Owners of experimental aircraft must individually determine appropriate unleaded fuels. Those owners may develop their own compatibility or solicit input from the TC/STC holder for data pertinent to their aircraft. Many experimental aircraft have engines and fuel systems in common with aircraft with standard airworthiness certificates.