Statuts: | Enquête Officielle |
Date: | jeudi 29 juin 1972 |
Heure: | 10:37 |
Type/Sous-type: |  Convair CV-580 |
Compagnie: | North Central Airlines |
Immatriculation: | N90858 |
Numéro de série: | 83 |
Année de Fabrication: | 1953 |
Heures de vol: | 45905 |
Moteurs: | 2 Allison 501-D13 |
Equipage: | victimes: 3 / à bord: 3 |
Passagers: | victimes: 2 / à bord: 2 |
Total: | victimes: 5 / à bord: 5 |
Victime de la collision: | victimes: 8 |
Dégats de l'appareil: | Perte Totale |
Conséquences: | Written off (damaged beyond repair) |
Lieu de l'accident: | ca. 8 km S of Appleton, WI ( Etats-Unis d'Amérique)
|
Phase de vol: | En approche (APR) |
Nature: | Transport de Passagers Nat. |
Aéroport de départ: | Green Bay-Austin-Straubel Field, WI (GRB/KGRB), Etats-Unis d'Amérique |
Aéroport de destination: | Oshkosh-Wittman Field, WI (OSH/KOSH), Etats-Unis d'Amérique |
Numéro de vol: | 290 |
Détails:North Central Flight 290, a Convair CV-580 departed Green Bay (GRB) at 10:30 for a flight to Oshkosh (OSH), Milwaukee (MKE) and Chicago. The aircraft climbed to 2,500 feet and proceeded on an approximate course to Oshkosh. At 10:35 the flight made its initial contact with Oshkosh tower stating, "...we're about, seven northeast, two thousand five hundred, VFR." The crew were cleared for a runway 27 landing at 10:36. At that same time, an Air Wisconsin Twin Otter turboprop plane was on its way from Sheboygan (SBM) to Appleton (ATW) at the same altitude. An in-flight collision occurred at 10:36:47 over Lake Winnebago, at an altitude of approximately 2,500 feet. Explosion and fire followed the and both aircraft fell into Lake Winnebago. The accident occurred in hazy sunlight below a scattered cloud layer.
Probable Cause:
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."
Accident investigation:
|
Investigating agency: | NTSB  |
Status: | Investigation completed |
Duration: | 300 days (10 months) | Accident number: | NTSB/AAR-73-09 | Download report: | Final report
| Language: | English |
|
Sources:
» NTSB-AAR-73-9
Opérations de secours
NTSB issued 6 Safety Recommendations
Issued: 16-AUG-1972 | To: | A-73-27 |
DEVELOP AND PUBLISH STANDARDS FOR VISUAL SEARCH TECHNIQUES TO BE USED BY INSTRUCTORS AND CHECK PILOTS ON ALL TRAINING, CERTIFICATION, AND PROFICIENCY CHECK FLIGHTS WHEN PILOTS ARE OPERATING IN VMC. (Closed - Unacceptable Action) |
Issued: 16-AUG-1972 | To: | A-73-28 |
ESTABLISH A REQUIREMENT FOR PILOTS TO BE TRAINED IN THE TECHNIQUES OF TIME SHARING BETWEEN VISUAL SCANNING FOR AIRBORNE TARGETS AND COCKPIT DUTIES. (Closed - Unacceptable Action) |
Issued: 16-AUG-1972 | To: | A-73-29 |
REQUIRE THAT ALL PILOTS AND FLIGHTCREW MEMBERS TRAINING, CERTIFICATION, AND PROFICIENCY CHECK FORMS CONTAIN A SPECIFIC ITEM ON SCANNING AND TIME SHARING. (Closed - Acceptable Alternate Action) |
Issued: 16-AUG-1972 | To: | A-73-30 |
REQUIRE THAT ALL PILOTS AND FLIGHTCREW MEMBERS BE GRADED IN SCANNING AND TIME SHARING TECHNIQUES WHEN TRAINING, CERTIFICATION, AND PROFICIENCY CHECK FLIGHTS ARE CONDUCTED UNDER VMC. (Closed - Acceptable Alternate Action) |
Issued: 16-AUG-1972 | To: | A-73-31 |
ADVISE THE BOARD OF THE STATUS OF THE FAA\'S EVALUATION PROJECT OF APRIL 7, 1972, ON AIRCRAFT CONSPICUITY RESEARCH AND, IF THAT PROJECT HAS NOT BEEN COMPLETED, TAKE ACTION TO COMPLETE THE PROJECT ON A PRIORITY BASIS. (Closed - Acceptable Action) |
Issued: 16-AUG-1972 | To: | A-73-32 |
EXPEDITE THE DEVELOPMENT AND ISSUANCE OF NATIONAL STANDARDS FOR SYSTEMS TO PROVIDE PROTECTION FROM MIDAIR COLLISIONS SO THAT THE INDUSTRY CAN PROCEED WITHOUT FURTHER DELAY TO DEVELOP AND MARKET ECONOMICALLY VIABLE HARDWARE. (Closed - Acceptable Alternate Action) |
Show all...
Photos
Plan
Ce plan montre l'aéroport de départ ainsi que la supposée destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Green Bay-Austin-Straubel Field, WI et Oshkosh-Wittman Field, WI est de 65 km (41 miles).
Accident location: Approximate; accuracy within a few kilometers.
Les informations ci-dessus ne représentent pas l'opinion de la 'Flight Safety Foundation' ou de 'Aviation Safety Network' sur les causes de l'accident. Ces informations prélimimaires sont basées sur les faits tel qu'ils sont connus à ce jour.