De Havilland DH.114 Heron crash, Mar 5, 1969 (19 killed)
De Havilland DH.114 Heron accident on March 5, 1969 near Sierra de Luquillo, Puerto Rico with 19 fatalities.
- Date: March 5, 1969
- Aircraft: De Havilland DH.114 Heron
- Location: Sierra de Luquillo, Puerto Rico
- Fatalities: 19
- Phase of flight: Approach and landing
Prinair flight PQ277, a De Havilland DH.114 Heron, was vectored on approach to San Juan by a trainee controller, and its position was misidentified. It struck trees and crashed near a knoll in the Sierra de Luquillo mountains, killing all occupants.