Re: ETOPS question on Aer Lingus A330

Date:         29 Nov 97 03:24:27 
From:         faurecm@halcyon.com (C. Marin Faure)
Organization: Northwest Nexus Inc.
References:   1 2 3 4 5
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In article <airliners.1997.2714@ohare.Chicago.COM>, Seth Dillon <bdillon1@mindspring.com> wrote:
> C. Marin Faure wrote:
> > In article <airliners.1997.2653@ohare.Chicago.COM>, showie@uoguelph.ca wrote:
> > > Just curious - what are the new requirements if a flight is downgraded to
> > > NON-ETOPS? Must they be less than 60 minute flying time from an airport
> > > throughout the flight?
> >
> > Not necessarily. Depending on the airline, airplane, route, and weather
> > conditions at the alternates, they may drop from 180 minute ETOPS to 120
> > minute ETOPS or even 90 minute ETOPS.  This may significantly affect their
> > route, or their ability to fly non-stop to their destination, but it does
> > not automatically revert them to the 60-minute rule.

> I do not know of any regulatory mechanism inplace that would allow an
> individual aircraft within a fleet to be partially down graded (180 to
> 120 or 90).

Some airlines have MELs that apply to the various ETOPS ratings.  While
possibly rare, you can have a particular problem or failure that knocks
the plane of the 180 MEL but not off the 120, 90, or 75 minute MEL.

C. Marin Faure
  author, Flying A Floatplane