Accident Eurocopter AS 350B2 Ecureuil N918EM,
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ASN Wikibase Occurrence # 75860
 
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Date:Thursday 22 July 2010
Time:19:25
Type:Silhouette image of generic AS50 model; specific model in this crash may look slightly different    
Eurocopter AS 350B2 Ecureuil
Owner/operator:EagleMed
Registration: N918EM
MSN: 3107
Year of manufacture:1998
Total airframe hrs:3355 hours
Engine model:Turbomeca ARRIEL 1D1
Fatalities:Fatalities: 2 / Occupants: 3
Aircraft damage: Substantial
Category:Accident
Location:near Okarche, 4 miles S of Kingfisher, Oklahoma -   United States of America
Phase: En route
Nature:Ferry/positioning
Departure airport:Oklahoma City, OK (OK19)
Destination airport:Okeene, OK
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
The surviving paramedic reported that while en route to the destination hospital to pick up a patient, a conversation began about flying on a coyote hunt. The pilot abruptly began a low-level maneuver in an attempt to demonstrate a coyote hunt flight. As the pilot maneuvered at low level, the helicopter and main rotor blades impacted trees and then terrain. An examination of the airframe and engine did not reveal any preimpact malfunctions or failures that would have precluded normal operation. Toxicological testing performed on specimens from the pilot detected the presence of numerous medications, including hydrocodone (a prescription narcotic for pain treatment), diazempam (a prescription medication with sedative effects) and chlorpheniramine (an over-the-counter sedating antihistamine). It is likely that these medications would have impaired the pilot’s judgment and ability to maintain control of the helicopter. A review of the pilot’s medical history found medical treatment for several conditions that were not reported to the Federal Aviation Administration, the certificate holder, or the operator.
Probable Cause: The pilot’s impaired judgment, due to medications, which led to an abrupt low-level maneuver and subsequent impact with trees and terrain.

Accident investigation:
cover
  
Investigating agency: NTSB
Report number: CEN10FA424
Status: Investigation completed
Duration: 2 years and 12 months
Download report: Final report

Sources:

NTSB
FAA register: 2. FAA: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?omni=Home-N-Number&nNumberTxt=918EM

Location

Media:

News9.com - Oklahoma City, OK - News, Weather, Video and Sports |

Revision history:

Date/timeContributorUpdates
22-Jul-2010 21:31 slowkid Added
23-Jul-2010 07:25 RobertMB Updated [Time, Aircraft type, Registration, Cn, Operator, Source, Damage]
24-Jul-2010 01:37 Alpine Flight Updated [Aircraft type]
13-Aug-2010 02:00 Anon. Updated [Narrative]
29-Jul-2014 23:13 Dr. John Smith Updated [Time, Location, Nature, Departure airport, Destination airport, Source, Embed code, Narrative]
29-Mar-2015 09:42 Aerossurance Updated [Source, Narrative]
21-Dec-2016 19:25 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
26-Nov-2017 18:01 ASN Update Bot Updated [Operator, Other fatalities, Departure airport, Destination airport, Source, Embed code, Narrative]

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