Aircraft Accident/Incident Report

Summerland Key, Florida 33042
Tuesady, May 2, 1989 20:30 EDT

NTSB Narrative Summary Released at Completion of Accident

THE FLT (A MONROE COUNTY MOSQUITO CONTROL OPN) BEGAN AT ABOUT 1740 EDT TO CONDUCT LOW ALT SPRAYING. WHEN IT DID NOT RETURN, A SEARCH WAS INITIATED. AT ABOUT 0245, THE ACFT WAS FOUND IN A REMOTE AREA ON WATER KEY NEAR THE TOWN OF SUMMERLAND KEY, FL. EVIDENCE AT THE ACDNT SCENE SUGGESTED THE ACFT STRUCK 40 FT HIGH MANGROVE TREES WITH THE LEFT WING AS THE PLTS WERE MAKING A PROCEDURE TURN TO START ANOTHER SPRAY RUN. NO PREIMPACT FAILURE OR MALFUNCTION OF THE ACFT OR ENGS WAS FOUND. THERE WERE NO KNOWN WITNESSES, BUT THE ACDNT WAS ESTD TO HAVE OCCURRED AT ABOUT 2030 EDT. SUNSET WAS AT 1952 EDT. ABOUT 22 MI SW AT KEY WEST, THE 1750 WX WAS IN PART: 1500' SCAT, 10 MI VIS, WIND FROM 330 DEG AT 10 KTS. APRX 85 MI NNE, THE WIND WAS FROM 100 DEG AT 11 KTS.

NTSB Probable Cause Narrative

THE FAILURE OF THE PILOT-IN-COMMAND TO ASSURE PROPER ALTITUDE AND CLEARANCE WAS MAINTAINED ABOVE THE TERRAIN AND TREES. THE TREES AND LIGHT CONDITION AT DUSK WERE CONTRIBUTING FACTORS.

Event Information

Type of Event Accident
Event Date 5/2/1989
Event Day of the Week Tuesday
Time of Event 2030
Event Time Zone Eastern Daylight Time
Event City SUMMERLAND KEY
Event State FLORIDA
Event Country --
Zipcode of the event site 33042
Event Date Year 1989
Event Date Month 5
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 Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1800 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 20
Weather Observation Facility ID TMB
Elevation of weather observation facility 7
Distance of event from weather observation facility (units?) 85
Time Zone of the weather observation EDT
Lighting Conditions Dusk
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 1500
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 27
Dew Point at event time (in degress fahrenheit) 21
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 10
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 1100
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) 423
NTSB Notification Source --
NTSB Notification Date May 3 1989 12:00AM
NTSB Notification Time 415
Fiche Number and/or location -used to find docket information 38151
Date of most recent change to record Dec 13 2000 12:41PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N28889
NTSB Number MIA89GA144
Missing Aircraft Indicator N
Federal Aviation Reg. Part Public Use
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name DOUGLAS
Aircraft Model C-47
Aircraft Series Identifier C-47
Aircraft Serial Number 20520
Certified Max Gross Weight 26200
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 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection May 1 1989 12:00AM
Airframe hours since last inspection 3
Airframe Hours 10317
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name MONROE CO.MOSQUITO CTROL.DIST.
Aircraft Owner Street Address JR. COLLEGE ROAD
Aircraft Owner City KEY WEST
Aircraft Owner State FL
Aircraft Owner Country
Aircraft Owner Zipcode 33040
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 Unknown
Indicates Domestic or International Flight Unknown
Operator carrying Pax/Cargo/Mail Unknown
Type of Flying (Per_Bus / Primary) Public Use
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code MTH
Departure City MARATHON
Departure State FL
Departure Country
Departure Time 1740
Departure Time Zone EDT
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 Oct 22 2001 3:26PM
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 --