Cumberland Is. Airport
Aircraft Accident/Incident Report

Cumberland Is., Georgia 31548
Saturday, March 28, 1992 17:00 EST

NTSB Narrative Summary Released at Completion of Accident

AT ABOUT 60-70 FEET ABOVE THE GROUND, DURING THE INITIAL CLIMB AFTER TAKE OFF, THE ENGINE RPM DECREASED. HARDWOOD TREES BOUNDED THE RUNWAY DEPARTURE THRESHOLD & THE PILOT ELECTED TO TURN BACK TO THE AIRSTRIP. THE AIRPLANE STALLED, DRAGGED THE RIGHT WING TIP, & COLLIDED WITH THE GROUND. THE PILOT STATED THAT A SPARK PLUG BLEW OUT & THAT THE CYLINDER SPARK PLUG HOLE WAS FITTED WITH A HELICOIL.

NTSB Probable Cause Narrative

THE LOSS OF THE SPARK PLUG AT A CRITICAL POINT IN FLIGHT WHICH RESULTED FROM THE INADEQUATE OVERHAUL OF THE ENGINE BY AN UNKNOWN PERSON; AND THE INADVERTENT STALL OF THE AIRPLANE WHEN THE PILOT FAILED TO MAINTAIN AIRSPEED. A FACTOR WAS THE HIGH OBSTRUCTIONS (TREES) WHICH BOUNDED THE RUNWAY DEPARTURE THRESHOLD.

Event Information

Type of Event Accident
Event Date 3/28/1992
Event Day of the Week Saturday
Time of Event 1700
Event Time Zone Eastern Standard Time
Event City CUMBERLAND IS.
Event State GEORGIA
Event Country --
Zipcode of the event site 31548
Event Date Year 1992
Event Date Month 3
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport CUMBERLAND IS.
Event Location Nearest Airport ID NONE
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 15
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1747 Eastern Standard Time
Direction of event from weather observation facility (degrees) 20
Weather Observation Facility ID SSI
Elevation of weather observation facility 12
Distance of event from weather observation facility (units?) 15
Time Zone of the weather observation EST
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 25000
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) 7
Air Temperature at event time (in degrees celsius) 14
Dew Point at event time (in degress fahrenheit) 7
Wind Direction (degrees magnetic) 130
Variable Wind Indicator Unknown
Wind Speed (knots) 7
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 0
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 1
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 370
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 46532
Date of most recent change to record Dec 11 2000 2:47PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N1975Y
NTSB Number ATL92LA071
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name MOONEY
Aircraft Model M20D
Aircraft Series Identifier M20D
Aircraft Serial Number 240
Certified Max Gross Weight 2500
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 100 Hour
Date of Last Inspection Jan 2 2000 12:00AM
Airframe hours since last inspection 2
Airframe Hours 3770
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name DAVIS, J.R. & HILL, M.L.
Aircraft Owner Street Address POST OFFICE BOX 1197
Aircraft Owner City KINGSLAND
Aircraft Owner State GA
Aircraft Owner Country
Aircraft Owner Zipcode 31548
Operator is an individual? --
Operator Name DAVIS, J.R. & HILL, M.L.
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address POST OFFICE BOX 1197
Operator City KINGSLAND
Operator State GA
Operator Country
Operator Zip code 31548
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 Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 1700
Departure Time Zone EST
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 Descent
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 22
Runway Length 2500
Runway Width 25
Sight Seeing flight No
Air Medical Flight No
Medical Flight --