Serious incident Cessna 421C N247CB, Sunday 23 April 1989

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Date:	Sunday 23 April 1989
Time:	18:49 LT
Type:	Cessna 421C
Owner/operator:	Bun Air Corporation
Registration:	N247CB
MSN:	20774
Engine model:	P&W JT8D
Fatalities:	Fatalities: 0 / Occupants: 103
Other fatalities:	0
Aircraft damage:	None
Category:	Serious incident
Location:	New York, NY - United States of America
Phase:	En route
Nature:	Ferry/positioning
Departure airport:	New York, NY (KLGA)
Destination airport:	Boston, MA (KBOS)
Investigating agency:	NTSB
Confidence Rating:	Accident investigation report completed and information captured

Narrative:

Probable Cause: FAILURE OF THE LIBERTY SECTOR CONTROLLER TO ADVISE PAN AM FLIGHT 542 OF THE PRESENCE OF THE CESSNA 421 AND/OR RESTRICT THE CLIMB OF FLIGHT 542 UNTIL IT HAD PASSED THE CESSNA, AND FAILURE OF THE PAN AM AIRCREW TO SEE THE CESSNA IN ADEQUATE TIME TO AVOID A NEAR COLLISION.

Accident investigation: