Easyjet Airline Co. Ltd.

After review of the proposed AD, comparison to the equivalent EASA AD, review of other technical information and in-service experience we suggest that the applicability and inspection requirements should be refined to take into account the frequency of exposure to TS-1 or equivalent fuels. Many operators may uplift TS-1 fuel but this may be infrequent on a given aircraft, where the predominant uplifts are for non-TS1 fuel types. The equivalent EASA document is only applicable to operators with an AOC based in a state where TS-1 fuel is the predominant fuel type and where TS1 is regularly uplifted. We suggest that infrequent uplift of TS1 fuel places less risk to the component than the additional maintenance and administration burden (and therefore opportunity for error) requested by this proposed rule, and therefore ask that this is taken into account.