Aircraft Accident/Incident Report

Milner, Colorado 80487
Friday, August 24, 2012 14:45 MDT

NTSB Narrative Summary Released at Completion of Accident

The student pilot departed on a cross-country flight and was not in contact with air traffic controllers; no flight plan had been filed. Log data recovered from the handheld global positioning system (GPS) unit depicted a flight track consistent with the accident flight and logged a maximum speed of 135 knots and a maximum GPS altitude of 18,379 feet. The airplane’s wreckage was located in a remote valley the following afternoon. An examination of the engine and airframe revealed no anomalies. Damage to the airplane and ground scars were consistent with the airplane being in a stall and flat spin at the time of impact. During the examination of the wreckage, marijuana and an opened six-pack of beer were found; the beer bottles were located in the front of the airplane, within the pilot’s reach. Toxicological testing found both alcohol and marijuana in the pilot’s system. The amount of alcohol in the pilot’s system would have significantly impaired the pilot’s performance. In addition, the amount of marijuana and its metabolite found in the pilot’s system indicated he was actively smoking in the hour before the accident; this would also have significantly impaired his ability to control the airplane. Both of these intoxicants may have impaired his judgment and contributed to the pilot’s decision to fly above 18,000 feet in an aircraft not equipped with oxygen. The resulting hypoxia also impaired his ability to control the airplane.

NTSB Probable Cause Narrative

The student pilot’s impairment from alcohol, marijuana, and hypoxia, which adversely affected his ability to maintain control of the airplane.

Event Information

Type of Event Accident
Event Date 8/24/2012
Event Day of the Week Friday
Time of Event 1445
Event Time Zone Mountain Daylight Time
Event City Milner
Event State COLORADO
Event Country --
Zipcode of the event site 80487
Event Date Year 2012
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 403045N
Event Location Longitude 1070202w
Event Location Airport --
Event Location Nearest Airport ID --
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness --
Investigator's weather source Unknown
Time of the weather observation 1453 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 90
Weather Observation Facility ID KSBS
Elevation of weather observation facility 6882
Distance of event from weather observation facility (units?) 8
Time Zone of the weather observation MDT
Lighting Conditions Day
Lowest Ceiling Height 12000
Lowest Non-Ceiling Height 2100
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 18
Dew Point at event time (in degress fahrenheit) 4
Wind Direction (degrees magnetic) 40
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 10
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 15
Altimeter Setting at event time (in. Hg) 30.08
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report METAR KSBS 242013Z AUTO 28009G14KT 10SM BKN110 26/
Event Highest Injury Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 31349
NTSB Notification Source NTSB Comm Center
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record May 21 2013 2:40PM
User who most recently changed record kaij
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N7774P
NTSB Number CEN12FA571
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name PIPER
Aircraft Model PA-24-250
Aircraft Series Identifier --
Aircraft Serial Number 24-2990
Certified Max Gross Weight --
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 4
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Mar 11 2012 12:00AM
Airframe hours since last inspection 68
Airframe Hours 7370
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Peter Landherr
Aircraft Owner Street Address --
Aircraft Owner City Grand Lake
Aircraft Owner State CO
Aircraft Owner Country USA
Aircraft Owner Zipcode 80447
Operator is an individual? Yes
Operator Name Peter Landherr
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City Grand Lake
Operator State CO
Operator Country USA
Operator Zip code 80447
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation --
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code KGWS
Departure City Glenwood Spring
Departure State CO
Departure Country USA
Departure Time 1359
Departure Time Zone MDT
Destination Same as Local Flt --
Destination Airport Code --
Destination City Saint Paul
Destination State MN
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record May 15 2013 3:15PM
User who most recently changed record kaij
Since inspection or accident Time of Accident
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --