Jeffco Airport
Aircraft Accident/Incident Report

Louisville, Colorado 80027
Saturday, July 8, 1989 19:05 MDT

NTSB Narrative Summary Released at Completion of Accident

THE INSTRUCTOR PLT (CFI) HAD NOT FLOWN A CESSNA 150K BEFORE & WAS ON HIS 1ST INSTRUCTIONAL FLT AFTER RECEIPT OF HIS CFI CERTIFICATE. THE STUDENT PLT HAD 9 HRS OF DUAL FLT TIME. THEY DEPD JEFFCO ARPT (BJC) AT 1855 MDT. AT 1900 MDT, THE BJC WX WAS IN PART: 12,000' SCT, 14,000' BKN, VIS 70 MI, WND 300 DEG AT 14 GSTG 33 KTS, TEMP 97 DEG, VIRGA IN ALL QUADS & TSTM ACTIVITY IN THE AREA. AFTER DEPG BJC, THE ACFT WAS SEEN ON AN APPARENT APCH TO A LARGE EMPTY PARKING LOT; THE APCH WAS THEN ABORTED. NO ENG PROBLEM WAS NOTED BY WITNESSES; THEY LAST SAW THE ACFT AS IT PASSED OVER THE CREST OF A HILL, DSCNDG ON A NORTHERLY HDG. IT CRASHED BYD THE CREST ON DSCNDG TRRN & WAS EXTENSIVELY DMGD. NO PREIMPACT PART FAILURE OR MALFUNCTION OF THE ACFT OR ENG WAS FOUND. THERE WAS EVIDENCE THE ACFT HAD ENCTRD MICROBURST ACTIVITY. APRX 15 MI SE AT STAPLETON INTL ARPT, MICROBURST ACTIVITY WAS RECORDED ON THE LOW LVL WND SHEAR ALERT (LLWAS) SYS. DENSITY ALTITUDE WAS ABOUT 9500'.

NTSB Probable Cause Narrative

INADEQUATE SUPERVISION BY THE INSTRUCTOR PILOT (CFI) AND FLIGHT IN KNOWN ADVERSE WEATHER CONDITIONS. FACTORS RELATED TO THE ACCIDENT WERE: INADEQUATE PREFLIGHT PLANNING/PREPARATION BY THE CFI, HIS LACK OF EXPERIENCE IN THE TYPE OF OPERATION, AND THE WEATHER CONDITIONS.

Event Information

Type of Event Accident
Event Date 7/8/1989
Event Day of the Week Saturday
Time of Event 1905
Event Time Zone Mountain Daylight Time
Event City LOUISVILLE
Event State COLORADO
Event Country --
Zipcode of the event site 80027
Event Date Year 1989
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport JEFFCO
Event Location Nearest Airport ID BJC
Indicates whether the acc/inc occurred off or on an airport Unknown
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 0
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1900 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 180
Weather Observation Facility ID BJC
Elevation of weather observation facility 5654
Distance of event from weather observation facility (units?) 5
Time Zone of the weather observation MDT
Lighting Conditions Day
Lowest Ceiling Height 14000
Lowest Non-Ceiling Height 12000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 70
Air Temperature at event time (in degrees celsius) 36
Dew Point at event time (in degress fahrenheit) 0
Wind Direction (degrees magnetic) 300
Variable Wind Indicator Unknown
Wind Speed (knots) 14
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 33
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 9500
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) 876
NTSB Notification Source --
NTSB Notification Date Jul 8 1989 12:00AM
NTSB Notification Time 1930
Fiche Number and/or location -used to find docket information 40388
Date of most recent change to record Feb 26 2001 8:06AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N6342G
NTSB Number DEN89FA162
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name CESSNA
Aircraft Model 150K
Aircraft Series Identifier 150K
Aircraft Serial Number 15071842
Certified Max Gross Weight 1600
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 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Jul 8 1989 12:00AM
Airframe hours since last inspection 4
Airframe Hours 8320
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name BLUE RIDGE, INC.
Aircraft Owner Street Address 1817 WELTON STREET, STE. 119
Aircraft Owner City DENVER
Aircraft Owner State CO
Aircraft Owner Country
Aircraft Owner Zipcode 80202
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
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) Instructional
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code BJC
Departure City BROOMFIELD
Departure State CO
Departure Country
Departure Time 1855
Departure Time Zone MDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Maneuvering
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Feb 26 2001 8:06AM
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 --