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ASN Wikibase Occurrence # 42618
Last updated: 19 March 2019
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Date:16-MAY-1994
Time:15:02
Type:Silhouette image of generic B47G model; specific model in this crash may look slightly different
Bell 47G-2
Owner/operator:private
Registration: N47GY
C/n / msn: 2207
Fatalities:Fatalities: 1 / Occupants: 1
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Category:Accident
Location:Tulsa, OK -   United States of America
Phase: En route
Nature:Ferry/positioning
Departure airport:Jenks, OK (RVS)
Destination airport:
Investigating agency: NTSB
Narrative:
WITNESSES HEARD A LOUD NOISE AND SAW AN OBJECT SEPARATE FROM THE SECOND OF TWO HELICOPTERS. THIS HELICOPTER THEN IMPACTED INVERTED IN THE BACK YARD OF A RESIDENCE. THE LEFT SYNCHRONIZED ELEVATOR AND END CAP WERE FOUND 240 FEET AWAY. AN INDENTATION ON THE LEADING EDGE OF ONE OF THE MAIN ROTOR BLADES MATCHED THAT OF THE END CAP. THE PILOT OF THE FIRST HELICOPTER SAID HE HAD WARNED THE SECOND PILOT OF A FLOCK OF BIRDS, AND THAT HE HAD TO BANK SHARPLY TO AVOID HITTING THEM. WHEN HE RECEIVED NO REPLY, HE TURNED AROUND BUT THE OTHER HELICOPTER WAS NOT IN SIGHT. CAUSE: IN FLIGHT LOSS OF CONTROL DUE TO THE PILOT'S IMPROPER USE OF THE CYCLIC AND COLLECTIVE CONTROLS WHEN HE MANEUVERED ABRUPTLY TO AVOID COLLIDING WITH A FLOCK OF BIRDS. FACTORS WERE THE BIRDS AND THE INFLIGHT SEPARATION OF THE LEFT SYNCHRONIZED ELEVATOR.

Sources:

NTSB: http://www.ntsb.gov/ntsb/brief.asp?ev_id=20001206X01271


Revision history:

Date/timeContributorUpdates
24-Oct-2008 10:30 ASN archive Added
21-Dec-2016 19:24 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]

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