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ASN Wikibase Occurrence # 39427
Last updated: 19 July 2019
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Date:26-FEB-1982
Time:08:00
Type:Silhouette image of generic R22 model; specific model in this crash may look slightly different
Robinson R22
Owner/operator:Tejas Helicopters Of Austin
Registration: N9061Z
C/n / msn: 145
Fatalities:Fatalities: 1 / Occupants: 1
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Category:Accident
Location:San Marcos, Texas -   United States of America
Phase: En route
Nature:Executive
Departure airport:Bird's Nest Airport (FAA: 6R4) Austin, Texas
Destination airport:San Antonio, Texas (SAT/KSAT)
Investigating agency: NTSB
Narrative:
THE HELICOPTER WAS OBSERVED ROTATING IN A COUNTER CLOCKWISE MOTION. A SMALL EXPLOSION WAS SEEN AT THE TAIL SECTION WITH PIECES FLYING OFF. THE OUTBOARD SECTIONS OF THE TAIL ROTOR BLADES WERE FOUND ABOUT 800 FEET FROM THE MAIN WRECKAGE. EXAMINATION OF THE FRACTURES INDICATES A HIGHLY ABNORMAL STRESS CONDITION WAS PRODUCED IN THE TAIL ROTOR. THE AUSTIN FSS WAS REPORTING WIND GUSTS OF 27 KNOTS.

The National Transportation Safety Board determines the probable cause(s) of this accident as follows:

ROTOR SYSTEM,TAIL ROTOR BLADE..OVERLOAD
ROTOR SYSTEM,TAIL ROTOR BLADE..FAILURE,TOTAL
ROTOR SYSTEM,TAIL ROTOR BLADE..UNDETERMINED
ROTOR DRIVE SYSTEM,TAIL ROTOR GEARBOX(90 DEG)..OVERLOAD
ROTOR DRIVE SYSTEM,TAIL ROTOR GEARBOX(90 DEG)..FAILURE,TOTAL
ROTOR DRIVE SYSTEM,TAIL ROTOR GEARBOX(90 DEG)..UNDETERMINED

Contributing Factors:
WEATHER CONDITION..GUSTS

Sources:

1. NTSB Identification: FTW82FA071 at https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20020917X02098&key=1
2. FAA: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?omni=Home-N-Number&nNumberTxt=9061Z
3. http://www.griffin-helicopters.co.uk/accidentdetails.aspx?accidentkey=1267
4. http://planecrashmap.com/plane/tx/N9061Z/


Revision history:

Date/timeContributorUpdates
24-Oct-2008 10:30 ASN archive Added
16-Sep-2016 18:35 Dr.John Smith Updated [Time, Location, Departure airport, Destination airport, Source, Narrative]
21-Dec-2016 19:23 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]

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