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ASN Wikibase Occurrence # 211978
Last updated: 12 November 2021
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Type:Silhouette image of generic R44 model; specific model in this crash may look slightly different
Robinson R44
Owner/operator:MF Helicopters LLC
Registration: N529DW
MSN: 1109
Fatalities:Fatalities: 1 / Occupants: 1
Other fatalities:0
Aircraft damage: Substantial
Location:Fox River, Oshkosh, WI -   United States of America
Phase: Initial climb
Departure airport:Oshkosh, WI
Destination airport:Oshkosh-Wittman Field, WI (OSH/KOSH)
Investigating agency: NTSB
The commercial pilot of the helicopter had just finished a low-level aerial photography flight of a boating event along a series of lakes and rivers. The pilot landed the helicopter, off-loaded the photographer, and departed to a nearby airport to refuel. Witnesses and surveillance video indicated that the helicopter was flying northwest over the river when, about 1/2 mile from the takeoff location, it contacted two lines of an unmarked five-line array that crossed about 100 ft above the river. The tail rotor separated from the helicopter, and the helicopter subsequently impacted the river.
The photographer reported that they had flown over numerous bridges and power lines during the earlier flight and that they had discussed the location of the power lines in reference to the bridges. Examination of the airframe revealed no evidence of mechanical malfunctions or failures that would have precluded normal operation of the helicopter. The circumstances of the accident are consistent with the pilot flying at an unnecessarily low altitude and then failing to maintain clearance from the wires while flying at low level.

Probable Cause: The pilot's decision to fly over the river at a low altitude and his failure to maintain clearance with wires during low-level flight.



Accident investigation:
Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year and 5 months
Download report: Final report



Photo: NTSB

Revision history:

09-Jun-2018 22:03 Iceman 29 Added
09-Jun-2018 22:14 Iceman 29 Updated [Time, Other fatalities, Source, Embed code, Narrative]
09-Jun-2018 22:15 Geno Updated [Time, Other fatalities, Location, Phase, Source, Embed code, Narrative]
09-Jun-2018 22:18 Aerossurance Updated [Aircraft type, Location, Narrative]
09-Jun-2018 22:26 Iceman 29 Updated [Time, Source, Narrative, Photo, ]
09-Jun-2018 22:27 Iceman 29 Updated [Embed code, Photo, ]
10-Jun-2018 06:35 Iceman 29 Updated [Total fatalities, Total occupants, Other fatalities, Source, Embed code, Narrative]
10-Jun-2018 07:20 Iceman 29 Updated [Registration, Cn, Operator, Source, Embed code]
11-Jun-2018 05:57 Anon. Updated [Operator, Source]
11-Jun-2018 11:16 Aerossurance Updated [Phase, Narrative]
19-Jun-2018 20:20 Aerossurance Updated [Time, Phase, Nature, Departure airport, Destination airport, Source, Narrative]
11-Nov-2019 17:43 ASN Update Bot Updated [Time, Operator, Departure airport, Destination airport, Source, Embed code, Damage, Narrative, Accident report, ]
11-Nov-2019 18:03 harro Updated [Operator, Destination airport, Source, Embed code, Narrative, Photo]
30-May-2020 09:35 Aerossurance Updated [Source, Embed code]
01-Jun-2020 08:02 Aerossurance Updated [Embed code]

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