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ASN Wikibase Occurrence # 73370
Last updated: 25 April 2018
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Date:06-MAR-2010
Time:11:20
Type:Silhouette image of generic R22 model; specific model in this crash may look slightly different
Robinson R22 Beta II
Owner/operator:Private
Registration: N922SH
C/n / msn: 3863
Fatalities:Fatalities: 2 / Occupants: 2
Airplane damage: Substantial
Category:Accident
Location:Agave Ranch, About 13 miles north of Cotulla, Texas -   United States of America
Phase: En route
Nature:Executive
Departure airport:Cotulla, TX
Destination airport:Cotulla, TX
Investigating agency: NTSB
Narrative:
During a safety briefing prior to the flight, the pilot mentioned that he would be operating with a limited amount of fuel so that the two-seat helicopter would be more maneuverable. Witnesses reported observing the pilot add fuel while the helicopter was running between several flights; however, no one recalled the pilot adding fuel before the last flight. The truck-mounted fuel tank that the pilot used to fuel the helicopter did not have a gauge or means to determine how much fuel was being pumped into the helicopter. The pilot was on his sixth flight of the day when the accident occurred. Approximately 10 minutes after the flight departed, several waiting passengers heard what they described as a sound that resembled a lawn mower bogging down in tall grass. The helicopter wreckage was located a short time later. A postaccident investigation showed only residual fuel in each of the helicopterís two fuel tanks. Neither tank exhibited hydraulic deformation and no significant fuel blight was observed on the surrounding vegetation. The helicopter was being operating at a low altitude that would not allow for a successful autorotation in the event of a loss of engine power. No evidence of mechanical failure of the helicopter structure, flight controls, systems, or engine was found.
Probable Cause: A loss of engine power due to fuel exhaustion as a result of the pilot's inadequate fuel planning. Contributing to the accident was the low-altitude operating environment that would not allow for a successful autorotation after the loss of engine power.

Sources:

NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20100306X05331&key=1
FAA register: 2. FAA: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?omni=Home-N-Number&nNumberTxt=922SH


Revision history:

Date/timeContributorUpdates
07-Mar-2010 03:38 RobertMB Added
07-Mar-2010 07:43 RobertMB Updated [Time]
07-Mar-2010 07:59 rvargast17 Updated [Time]
08-Mar-2010 00:31 RobertMB Updated [Time, Aircraft type, Registration, Cn, Operator, Source]
04-Oct-2016 22:21 Dr.John Smith Updated [Time, Operator, Location, Nature, Departure airport, Source, Damage, Narrative]
21-Dec-2016 19:25 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
26-Nov-2017 15:56 ASN Update Bot Updated [Operator, Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative]

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