Pensacola Regional Airport
Aircraft Accident/Incident Report

Pensacola, Florida 32504
Friday, December 28, 1990 17:39 CST

NTSB Narrative Summary Released at Completion of Accident

FLT WAS CLRD FOR ILS APCH. ABOUT 10 MI FROM RWY PLT REPORTED HIS GLIDESLOPE WAS NOT WORKING. FLT WAS THEN CLEARED FOR ASR RADAR APCH. AT 1.5 MILES FROM RWY FLT WAS LOST FROM RADAR. WITNESSES REPORTED ACFT FLEW OVERHEAD AT TREE TOP LEVEL WITHOUT THE ENG RUNNING. ACFT HIT TREES AND THEN CRASHED INTO GND INVERTED. PROPELLER HAD NO ROTATION DAMAGE. NO EVIDENCE TO INDICATE PRECRASH MALFUNCTION OF ENGINE WAS NOTED. THE MIXTURE CONTROL WAS IN THE CRUISE LEAN POSITION AND THE CARBURETOR HEAT WAS IN THE COLD POSITION. NO INST APCH PLATES WERE FOUND OPEN IN THE COCKPIT. THE FLT WAS OPERATING IN CONDITIONS WHICH WOULD CAUSE VISIBLE CARB ICE AT CRUISE POWER AND SERIOUS CARB ICE AT GLIDE POWER. POST MORTEM EXAMINATION OF THE PLT INDICATED HE SUFFERED FROM MILD CEREBRAL ATROPHY AND HYPERTENSIVE ARTERIOSCLEROTIC HEART DISEASE. THE PLT WAS PRESCRIBED HYPERTENSIVE MEDICATION BUT WAS NOT TAKING IT AT THE TIME OF THE ACCIDENT.

NTSB Probable Cause Narrative

THE PILOT'S FAILURE TO USE CARBURETOR HEAT RESULTING IN LOSS OF ENGINE POWER DUE TO CARBURETOR ICE. A FACTOR IN THE ACCIDENT WAS THE PILOT'S MEDICAL CONDITION.

Event Information

Type of Event Accident
Event Date 12/28/1990
Event Day of the Week Friday
Time of Event 1739
Event Time Zone Central Standard Time
Event City PENSACOLA
Event State FLORIDA
Event Country --
Zipcode of the event site 32504
Event Date Year 1990
Event Date Month 12
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport PENSACOLA REGIONAL
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 121
Weather Briefing Completeness Full
Investigator's weather source Weather Observation Facility
Time of the weather observation 1735 Central Standard Time
Direction of event from weather observation facility (degrees) 160
Weather Observation Facility ID PNS
Elevation of weather observation facility 121
Distance of event from weather observation facility (units?) 2
Time Zone of the weather observation CST
Lighting Conditions Night/Dark
Lowest Ceiling Height 200
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) 0
Air Temperature at event time (in degrees celsius) 17
Dew Point at event time (in degress fahrenheit) 17
Wind Direction (degrees magnetic) 100
Variable Wind Indicator Unknown
Wind Speed (knots) 6
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 200
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 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 1939
NTSB Notification Source --
NTSB Notification Date Dec 28 1990 12:00AM
NTSB Notification Time 1950
Fiche Number and/or location -used to find docket information 44503
Date of most recent change to record Dec 12 2000 5:36PM
User who most recently changed record dbo
Basic weather conditions Instrument Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N6600U
NTSB Number MIA91FA057
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 None
Aircraft Explosion None
Aircraft Manufacturer's Full Name MOONEY
Aircraft Model M20C
Aircraft Series Identifier M20C
Aircraft Serial Number 2387
Certified Max Gross Weight 2575
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 Annual
Date of Last Inspection Sep 17 1990 12:00AM
Airframe hours since last inspection 21
Airframe Hours 2252
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 COX, FRITZ L.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 142 COVE ROAD
Operator City PENSACOLA
Operator State FL
Operator Country
Operator Zip code 32503
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 UBS
Departure City COLUMBUS
Departure State MS
Departure Country
Departure Time 1530
Departure Time Zone CST
Destination Same as Local Flt crash at destination city
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Approach
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 16
Runway Length 7002
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --