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ASN Wikibase Occurrence # 135493
Last updated: 22 October 2019
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Date:30-NOV-1986
Time:11:35
Type:Silhouette image of generic R22 model; specific model in this crash may look slightly different
Robinson R-22
Owner/operator:Arizona Wing & Rotor
Registration: N9006W
C/n / msn: 0004
Fatalities:Fatalities: 0 / Occupants: 2
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Category:Accident
Location:Tucson, Arizona -   United States of America
Phase: Landing
Nature:Training
Departure airport:Scottsdale, Arizona (SDL/KSDL)
Destination airport:Tuscon, Arizona (TUS/KTUS)
Investigating agency: NTSB
Narrative:
AFTER 50 MINUTES OF CRUISE FLIGHT, THE PILOT OBSERVED A DECREASE IN OIL PRESSURE TO ZERO AND THE ILLUMINATION OF THE LOW OIL PRESSURE LIGHT. THE PILOT LANDED THE HELICOPTER AND HAD AN AIR FRAME AND POWER PLANT MECHANIC INSPECT THE AIRCRAFT. THERE WERE NO PROBLEMS OBSERVED. THE PILOT TOOK OFF AND CONTINUED THE INSTRUCTIONAL FLIGHT, LETTING HIS STUDENT TAKE OVER THE CONTROLS. AFTER 20 MINUTES OF NORMAL OPERATION AND ON FINAL APPROACH FOR LANDING AT 75 FEET AGL AND 50 KNOTS, THE LOW OIL PRESSURE LIGHT ILLUMINATED. THE ENGINE STOPPED RUNNING. THE INSTRUCTOR TOOK OVER CONTROL OF THE AIRCRAFT AND ATTEMPTED AN AUTO ROTATION. THE AIRCRAFT COLLIDED WITH THE TERRAIN AT AN AIRSPEED OF 35 TO 40 KNOTS. A TEAR DOWN OF THE ENGINE REVEALED THAT THE NUMBER TWO CONNECTING ROD HAD FAILED.

Sources:

1. NTSB Identification: LAX87DUJ01 at https://www.ntsb.gov/aviationquery/brief.aspx?ev_id=20001213X35179&key=1
2. FAA: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?omni=Home-N-Number&nNumberTxt=9006W
3. http://www.griffin-helicopters.co.uk/accidentdetails.aspx?accidentkey=35656


Revision history:

Date/timeContributorUpdates
08-Feb-2016 12:21 Dr.John Smith Updated [Time, Cn, Departure airport, Destination airport, Source, Narrative]
08-Feb-2016 12:22 Dr.John Smith Updated [Source]
18-Sep-2016 20:01 Dr.John Smith Updated [Location, Departure airport, Destination airport]
21-Dec-2016 19:26 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]

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