Aircraft Accident/Incident Report

Prescott Valley, Arizona 86314
Thursday, June 1, 2000 10:05 MST

NTSB Narrative Summary Released at Completion of Accident

The pilot reported hearing a loud noise and feeling his ears pop while the twin-engine airplane was in cruise flight about 12,900 feet. Radar data revealed that the airplane was on a relatively straight and level flight track until approximately 1 hour prior to the accident, when it initiated a spiraling descent to the left. The airplane continued toward the accident site on an erratic flight path, with the altitude varying between 6,000 and 9,000 feet. The pilot reported having trouble seeing his instruments and felt confused. He thought he was landing at an airport New Mexico near his ranch, but landed on a road in Arizona and struck light poles. Witnesses at the accident site stated that the pilot appeared impaired and confused, but did not smell of alcohol. The pilot left the accident site, and was not tested for alcohol or carbon monoxide poisoning. He reported that he did not consume any drugs or alcohol prior to, or during the flight, but did report smoking three packs of cigarettes a day and also smoked cigars. Examination of the pressurization and cabin air systems revealed that a fractured clamp that could have prevented the cabin from maintaining pressurization. In addition, there was evidence of engine exhaust by-products in some components of the airplane's pressurization system that should not have been exposed to engine exhaust. The source of the engine exhaust infusion into the pressurization system could not be determined.

NTSB Probable Cause Narrative

The pilot's physical impairment due to the cumulative effects of carbon monoxide from engine exhaust by-products, carbon monoxide from heavy tobacco use, and the loss of an undetermined amount of cabin pressurization. A factor in the loss of pressurization was a fractured clamp.

Event Information

Type of Event Accident
Event Date 6/1/2000
Event Day of the Week Thursday
Time of Event 1005
Event Time Zone Mountain Standard Time
Event City Prescott Valley
Event State ARIZONA
Event Country --
Zipcode of the event site 86314
Event Date Year 2000
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 343600N
Event Location Longitude 1121500W
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 Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1053 Mountain Standard Time
Direction of event from weather observation facility (degrees) 310
Weather Observation Facility ID PRC
Elevation of weather observation facility 5045
Distance of event from weather observation facility (units?) 10
Time Zone of the weather observation MST
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 28
Dew Point at event time (in degress fahrenheit) -1
Wind Direction (degrees magnetic) 240
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 10
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 20
Altimeter Setting at event time (in. Hg) 30.01
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 12932
NTSB Notification Source FAA
NTSB Notification Date Jun 1 2000 12:00AM
NTSB Notification Time 1251
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Feb 20 2003 3:47PM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N414PS
NTSB Number LAX00FA213
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? Yes
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Cessna
Aircraft Model 414A
Aircraft Series Identifier 414A
Aircraft Serial Number 414A0056
Certified Max Gross Weight 7087
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 6
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Sep 3 1999 12:00AM
Airframe hours since last inspection 126.4
Airframe Hours 4757.6
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Prop Jocks, Inc.
Aircraft Owner Street Address 1875 Century Park East #1300
Aircraft Owner City Los Angeles
Aircraft Owner State CA
Aircraft Owner Country USA
Aircraft Owner Zipcode 90067
Operator is an individual? No
Operator Name Patrick W. Swayze
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 2029 Century Park E. Suite 500
Operator City Los Angeles
Operator State CA
Operator Country --
Operator Zip code 90067
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? --
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 VNY
Departure City Van Nuys
Departure State CA
Departure Country USA
Departure Time 721
Departure Time Zone PST
Destination Same as Local Flt --
Destination Airport Code LVS
Destination City Las Vegas
Destination State NM
Destination Country USA
Specific Phase of Flight Cruise
Report sent to ICAO? --
Evacuation occurred No
Date of most recent change to record Jan 23 2003 3:35PM
User who most recently changed record COOS
Since inspection or accident Time of Accident
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --