Delta Air Lines, Inc., Plaintiff-Counter-Claimant, Cross v. Air Line Pilots Association, International, Defendant-Counter-Claimant, Cross-Appellee

HILL, Circuit Judge:

I. FACTS

This case concerns the discharge of William D. Day, a former Delta Airlines pilot, who was discharged by Delta for operating an aircraft while drunk. The facts, which were established at Day's grievance hearing before the Delta System Board of Adjustment, are not in dispute.

On January 9, 1985, Day was the Pilot-In-Command of Flight 410 from Boston to Bangor, Maine, which arrived about 2:00 p.m. The other cockpit crew members were First Officer David Rothbart and Second Officer Peter V. Voorhees. The four flight attendants (F/A’s) were Robin Sur-ette, Maureen Dion,…