Date:	Sunday 23 September 1962
Time:	22:00
Type:	Lockheed L-1049H Super Constellation
Owner/operator:	Flying Tiger Line
Registration:	N6923C
MSN:	4827
Year of manufacture:	1958
Total airframe hrs:	15800 hours
Engine model:	Wright R-3350 (988TC18EA6)
Fatalities:	Fatalities: 28 / Occupants: 76
Aircraft damage:	Destroyed, written off
Category:	Accident
Location:	800 km W off Shannon, Ireland -   Atlantic Ocean
Phase:	En route
Nature:	Passenger - Non-Scheduled/charter/Air Taxi
Departure airport:	Gander Airport, NL (YQX/CYQX)
Destination airport:	Frankfurt International Airport (FRA/EDDF)
Investigating agency:	CAB
Confidence Rating:	Accident investigation report completed and information captured

Narrative:
The Super Constellation departed Gander at 17:09 GMT for a military (MATS) charter flight to Frankfurt. Three hours later, at FL210 a fire developed in the no. 3 engine, which was shut down and the propeller feathered. The no. 1 engine oversped 5 minutes later when the flight engineer closed the no. 1 engine firewall shut-off valve in error. The crew were not able to restart the engine, and wanted to divert to Shannon with METO power on the no. 4 engine and reduced power on engine no. 2. The no. 2 engine lost power and finally failed, forcing the crew to carry out a ditching. The left wing broke off, but the fuselage remained intact. The cabin filled with water fast and the aircraft sank nose first in about 10 minutes.

PROBABLE CAUSE: "The failure of two of the aircraft's four engines, and improper action of the flight engineer which disabled a third engine thereby necessitating a ditching at sea."

Ditch or crash-land?/B.W. Townshend, 1965 (36-46)
ICAO Accident Digest No.14 Volume I, Circular 71-AN/63 (60-66)

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