First flight of the prototype of the Sikorsky S-76A Type series
Sunday, March 13, 1977
- Sikorsky Flight Development Center, West Palm Beach, United States of America 
This is a Notable Operational milestone.
Description:
The aircraft was flown by Sikorsky Chief Pilot John Dixson and the program test pilot, Nick Lappos.
Source: VFS 2019 VTOL History Calendar
