Aircraft Accident/Incident Report

Kingman, Arizona 86401
Monday, November 19, 1990 21:40 MST

NTSB Narrative Summary Released at Completion of Accident

THE 57 YEAR OLD PILOT DEPARTED LATE IN THE DAY FOR A 7 TO 8 HOUR CROSS COUNTRY FLIGHT TO BEAT SOME INCOMING WEATHER. HE HAD BEEN PHEASANT HUNTING FOR TWO DAYS PRIOR. THE SECOND LEG OF HIS TRIP WAS A DARK NIGHT DEPARTURE FOR WHICH HE FILED A VFR FLIGHT PLAN AND INDICATED 12500 FEET MSL AS HIS CRUISING ALTITUDE. RADAR DATA DISCLOSED THAT HE CLIMBED TO 13100 FEET AT ONE POINT, HOWEVER, HIS OVERALL ROUTE OF FLIGHT FOR NEARLY 3 HOURS WAS ONE OF A MEANDERING AND UNDULATING TRACK. THE APPROXIMATE LAST 10 MINUTES OF FLIGHT WAS A GRADUAL ON TRACT DESCENT TO IMPACT AT ABOUT 5700 FEET, ABOUT AN HOUR SHORT OF HIS DESTINATION. HE CARRIED NO SUPPLEMENTAL OXYGEN. FRIENDS INDICATED HE FREQUENTLY TOOK 'CAT NAPS' ON LONG CROSS COUNTRY TRIPS WHILE LETTING THE AUTO PILOT FLY THE AIRCRAFT. HIS AUTOPILOT WAS OPERATIONAL EXCEPT FOR THE ALTITUDE HOLD.

NTSB Probable Cause Narrative

PROPER ALTITUDE NOT MAINTAINED. CONTRIBUTING TO THE ACCIDENT WAS: THE LACK OF SUPPLEMENTAL OXYGEN ON BOARD THE AIRCRAFT, PILOT FATIGUE, IMPROPER USE OF THE AUTO PILOT, AND PILOT COMPLACENCY.

Event Information

Type of Event Accident
Event Date 11/19/1990
Event Day of the Week Monday
Time of Event 2140
Event Time Zone Mountain Standard Time
Event City KINGMAN
Event State ARIZONA
Event Country --
Zipcode of the event site 86401
Event Date Year 1990
Event Date Month 11
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
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 0
Degrees magnetic from airport 0
Airport Elevation 0
Weather Briefing Completeness Full
Investigator's weather source Weather Observation Facility
Time of the weather observation 2151 Mountain Standard Time
Direction of event from weather observation facility (degrees) 60
Weather Observation Facility ID PRC
Elevation of weather observation facility 5042
Distance of event from weather observation facility (units?) 70
Time Zone of the weather observation MST
Lighting Conditions Night/Dark
Lowest Ceiling Height 15000
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 15
Air Temperature at event time (in degrees celsius) -18
Dew Point at event time (in degress fahrenheit) -18
Wind Direction (degrees magnetic) 100
Variable Wind Indicator Unknown
Wind Speed (knots) 4
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) 0
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal 2
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 2294
NTSB Notification Source --
NTSB Notification Date Nov 23 1990 12:00AM
NTSB Notification Time 1415
Fiche Number and/or location -used to find docket information 45518
Date of most recent change to record Dec 18 2002 11:28AM
User who most recently changed record NTSB\GIUV
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N5748K
NTSB Number LAX91FA040
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed VFR
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion Ground
Aircraft Manufacturer's Full Name BEECH
Aircraft Model S-35
Aircraft Series Identifier S-35
Aircraft Serial Number D-7535
Certified Max Gross Weight 3300
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 4
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection --
Airframe hours since last inspection 0
Airframe Hours --
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name
Aircraft Owner Street Address
Aircraft Owner City
Aircraft Owner State
Aircraft Owner Country
Aircraft Owner Zipcode
Operator is an individual? --
Operator Name CRIMMINS, WILLIAM H.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 1985 MCCREA ROAD
Operator City THOUSAND OAKS
Operator State CA
Operator Country
Operator Zip code 91362
Operator Code
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
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 GJT
Departure City GRAND JUNCTION
Departure State CO
Departure Country
Departure Time 1940
Departure Time Zone MST
Destination Same as Local Flt --
Destination Airport Code TRM
Destination City THERMAL
Destination State CA
Destination Country
Specific Phase of Flight Cruise
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:35AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length 0
Runway Width 0
Sight Seeing flight No
Air Medical Flight No
Medical Flight --