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ASN Wikibase Occurrence # 42673
Last updated: 17 August 2021
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Date:18-MAY-1998
Time:13:51
Type:Silhouette image of generic B06 model; specific model in this crash may look slightly different
Bell 206L-1 LongRanger II
Owner/operator:Rotors In Motion Corporation
Registration: N41BL
MSN: 45302
Fatalities:Fatalities: 4 / Occupants: 4
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Category:Accident
Location:311 South Fernandez Street, Arlington Heights , Illinois -   United States of America
Phase: Manoeuvring (airshow, firefighting, ag.ops.)
Nature:Executive
Departure airport:Waukegan, IllinoIs (UGN/KUGN)
Destination airport:
Investigating agency: NTSB
Narrative:
A witness observed the helicopter fly over his apartment building within 100 feet. He watched the helicopter travel away from the building on a southwesterly heading in a level attitude. The witness estimated the helicopter to be approximately 350 feet above the ground. The witness said he saw the helicopter begin a slow banked turn to the left toward a southerly heading. The helicopter banked through 30 degrees up to 90 degrees, then it pitched down and descended in a 70 to 80 degree nose-down pitch angle. The witness lost sight of the helicopter when it descended below the tree tops. Another witness in the same building said that as the helicopter was going to the west, it was getting closer to the tree tops. The witness said that the helicopter 'banked real hard [to the] south, so that the [main rotor] blades were perpendicular to the ground. The helicopter went straight down in a dive, nose first.' The witness said that the helicopter was only 15 feet above the tree tops when it dove in. At 1351 CDT, the Chicago Northwest Central Dispatch System received a 9-1-1 call that a helicopter had crashed into a residence at 311 South Fernandez Street, Arlington Heights, Illinois.

Examination of the wreckage revealed no anomalies. The results of FAA toxicology testing of specimens from the pilot revealed 0.007 (ug/ml, ug/g) chlorpheniramine detected in urine.

CAUSE: Loss of helicopter control for unknown reasons. Registration N41BL cancelled by the FAA July 21 1998

Sources:

1. NTSB CHI98FA159 at https://www.ntsb.gov/_layouts/ntsb.aviation/brief2.aspx?_ev_id=20001211X09996&ntsbno=CHI98FA159&akey=1
2. http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=41BL
3. http://www.bellhelicopter.com/MungoBlobs/925/478/destroyed.pdf
4. https://www.flightglobal.com/pdfarchive/view/1999/1999


Revision history:

Date/timeContributorUpdates
24-Oct-2008 10:30 ASN archive Added
12-Apr-2015 13:31 Dr. John Smith Updated [Time, Operator, Location, Departure airport, Source, Narrative]
21-Dec-2016 19:24 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]

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