Zone

Crash of a Learjet 25 in Sheboygan: 2 killed

Date & Time: Jun 12, 1992 at 1210 LT
Type of aircraft:
Registration:
N38DJ
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Sheboygan-Manitowoc
MSN:
25-191
YOM:
1975
Crew on board:
2
Crew fatalities:
Pax fatalities:
Other fatalities:
Total fatalities:
2
Captain / Total flying hours:
17012
Captain / Total hours on type:
5738.00
Aircraft flight hours:
9798

Crash of a De Havilland DHC-6 Twin Otter 200 near Appleton: 8 killed

Date & Time: Jun 29, 1972 at 1037 LT
Operator:
Registration:
N4043B
Survivors:
No
Schedule:
Chicago - Sheboygan - Appleton
MSN:
13
YOM:
1966
Flight number:
ZW671
Crew on board:
2
Crew fatalities:
Pax on board:
6
Pax fatalities:
Other fatalities:
Total fatalities:
8
Captain / Total flying hours:
6556
Captain / Total hours on type:
3412.00
Copilot / Total flying hours:
4309
Copilot / Total hours on type:
1685
Aircraft flight hours:
15664
Circumstances:
Following a uneventful flight from Sheboygan, the crew started the descent to Appleton Airport in relative good weather conditions when, at an altitude of 2,500 feet, the Twin Otter collided with a North Central Airlines Convair CV-580 registered N90858. En route from Green Bay to Oshkosh, the Convair was carrying two passengers and three crew members. At the time of the accident, both airplanes were flying under VFR in an uncontrolled airspace. Following the collision, both aircraft crashed into Lake Winnebago, some five miles southeast of Appleton Airport. Debris were found floating on water, both airplanes were totally destroyed and all 13 occupants were killed.
Probable cause:
The failure of both flight crews to detect visually the other aircraft in sufficient time to initiate evasive action. the Board is unable to determine why each crew failed to see and avoid the other aircraft; however, the Board believes that the ability of both crews to detect the other aircraft in time to avoid a collision was reduced because of the atmospheric conditions and human visual limitations.
Final Report: