Home > VansAirForceForums

-Advertise in here!
- Today's Posts | Insert Pics

Keep VAF Going
Donate methods

Point your
camera app here
to donate fast.

Go Back   VAF Forums > Education > Probable Cause Documents Discussed
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Thread Tools Search this Thread Display Modes
Old 04-24-2018, 07:58 AM
Sam Buchanan's Avatar
Sam Buchanan Sam Buchanan is offline
been here awhile
Join Date: Dec 2004
Location: North Alabama
Posts: 4,466
Default Final Report; 2016 RV-4 fatal accident
Sam Buchanan
Reply With Quote
Old 04-24-2018, 08:37 AM
Johnnybgoode Johnnybgoode is offline
Join Date: Dec 2012
Location: NC
Posts: 112
Default What can you say?

Life is too short to fly impaired. Not surprising, if this is indeed a contributing factor.
Privileged to explore the world in the venerable Lockheed C-130 and the regions around NC in a work-in-progress RV-4, kit #2614, while paying the bills aboard an Airbus A-330.
Reply With Quote
Old 04-24-2018, 08:38 AM
pierre smith's Avatar
pierre smith pierre smith is offline
Join Date: Jan 2005
Location: Louisville, Ga
Posts: 7,911
Default Yep

Thanks Sam. I've often warned pilots about powerlines and rivers. Sad.

Rv10 Sold
46 years ag pilot/CFI
Air Tractor 502/PT-6
Building RV-12, Wings, fuse, emp complete. FWF in progress.
Reply With Quote
Old 04-24-2018, 09:54 AM
airguy's Avatar
airguy airguy is offline
Join Date: Oct 2006
Location: Garden City, Tx
Posts: 5,601

Toxicology testing performed by the FAA Bioaeronautical Research Sciences Laboratory, Oklahoma City, Oklahoma, for the pilot was negative for carbon monoxide and cyanide. The testing identified ethanol at 0.059 gm% in urine, 0.037 gm% in muscle, 0.036 gm% in brain, and 0.033 gm% in blood (unknown source). In addition, 10.1 ng/ml of tetrahydrocannabinol (THC, the primary psychoactive substance in marijuana) and 13.1 ng/ml of 11-carboxytetrahydrocannabinol (THC-COOH) was identified in blood. THC- COOH was also identified in urine.

Ethanol is the intoxicant commonly found in beer, wine, and liquor. It acts as a central nervous system depressant. The effects of ethanol on aviators are generally well understood; it significantly impairs pilots' performance, even at very low levels. Title 14 CFR section 91.17 (a) prohibits any person from acting or attempting to act as a crewmember of a civil aircraft while having 0.040 gm/dl or more ethanol in the blood. Because ingested alcohol is distributed throughout the body, levels from different post mortem tissues are usually similar. Ethanol may also be produced in body tissues by microbial activity after death.

Marijuana is a psychoactive drug with therapeutic levels as low as 0.001 ug/ml. According to NHTSA's Drugs and Human Performance Fact Sheets, "It is difficult to establish a relationship between a person's THC blood or plasma concentration and performance impairing effects. Concentrations of parent drug and metabolite are very dependent on pattern of use as well as dose. THC concentrations typically peak during the act of smoking, while peak 11-OH THC concentrations occur approximately 9-23 minutes after the start of smoking. Concentrations of both analytes decline rapidly and are often < 0.005 ug/mL at 3 hours." A detailed report of the toxicological results is included in the public docket associated with the investigation.

Just the facts, do the math and draw your own conclusions.
Greg Niehues - SEL, IFR, Repairman Cert.
Garden City, TX VAF 2021 dues paid
N16GN flying 900 hrs and counting; IO360, SDS, WWRV200, Dynon HDX, IFD440, G5
Built an off-plan RV9A with too much fuel and too much HP. Should drop dead any minute now.
Reply With Quote
Old 04-24-2018, 10:32 AM
rvator51's Avatar
rvator51 rvator51 is offline
Join Date: Jan 2005
Location: Peoria, AZ
Posts: 1,054

As someone who has lost a friend to a powerline, altitude is your friend.

Thomas Velvick
Goodyear, AZ (KGYR)

2020 Donation sent.

N53KT RV-6a finished 2018, Flying
N7053L RV-4 Wife's RV
N56KT RV-4 Finishing
Reply With Quote
Old 04-24-2018, 01:14 PM
Canadian_JOY Canadian_JOY is offline
Join Date: Aug 2007
Location: Ontario, Canada
Posts: 2,474

A half-inch line is invisible in flight, and nearly invisible even when standing still unless you're able to get just the right contrast/background/lighting conditions. There's no hope of "see and avoid" tactics helping you avoid a line of this size while flying.
Reply With Quote
Old 04-24-2018, 10:19 PM
Schooner69 Schooner69 is offline
Join Date: Aug 2006
Posts: 108

NEVER low fly in an area you have not previously recce'd. Even that caution is useless unless you can guarantee that nothing has been erected/strung since your recce...

I know of three people killed and two aircraft destroyed after encountering a wire because of spur-of-the-moment low flying.
Reply With Quote
Old 04-24-2018, 11:19 PM
BobTurner BobTurner is online now
Join Date: Dec 2011
Location: Livermore, CA
Posts: 7,867

Originally Posted by Schooner69 View Post
NEVER low fly in an area you have not previously recce'd. Even that caution is useless unless you can guarantee that nothing has been erected/strung since your recce...

Yep. Some years back a Mooney crashed, fatally, in the Altamont pass east of KLVK. Scud running in the dark. They hit a high tension line that had been installed while they were away.
Reply With Quote
Old 04-25-2018, 03:48 PM
moosepileit moosepileit is offline
Join Date: Dec 2010
Location: Louisville, KY
Posts: 750

They hit a Zipline cable, right? Powerlines at least may give you chart depictions and towers to see. A zipline in the trees gives neither.
RV-6, bought from builder.
O-320, slider, carb, mags, FP
Reply With Quote
Old 05-12-2018, 01:51 AM
dlomheim dlomheim is offline
Join Date: Sep 2006
Location: (2OK2) OK City, OK
Posts: 387
Default Common Killers

Originally Posted by Johnnybgoode View Post
Life is too short to fly impaired. Not surprising, if this is indeed a contributing factor.
Yeah, too many passengers have been killed shortly after a pilot says: "Hey, watch this..."; and if the pilot is on drugs, all fear may be gone which further increases the likelihood of a bad outcome!


RV-3A restored / sold
Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

All times are GMT -6. The time now is 12:28 AM.

The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.