Castle Marina Airport
Aircraft Accident/Incident Report

Stevensville, Maryland 21666
Monday, April 29, 1985 12:00 EDT

NTSB Narrative Summary Released at Completion of Accident

THE PLT STATED THAT WHEN IN NORMAL CURISE AT 3000 FT OVER CASTLE MARINA ARPT HE NOTICED EXCESSIVE OIL AND CYLINDER HEAD TEMPS. A CONCURRENT SMALL AMOUNT OF SMOKE WAS EMANATING FROM THE INSTRUMENT PANEL WHICH PROMPTED THE PLT TO EXECUTE A PRECAUTIONARY LNDG AT CASTLE MARINA. WHILE TAXIING FROM LDG, THE SMOKE FROM THE INSTRUMENT PANEL THICKENED. THE PLT SHUT DOWN THE SYSTEMS AND ENGINE (WHICH HAD CONTINUED TO RUN NORMALLY), AND EVACUATED THE AIRPLANE. FLAMES THEN ENGULFED AND DESTROYED THE CABIN AREA AND INST PNL. A MECHANIC DISCOVERED A CRACKED OIL PRESSURE GAGE LINE. THIS LINE IS SITUATED ABOVE THE TAIL PIPE AND IS ADJACENT TO A WIRE BUNDLE THAT POWERS THE ENGINE INSTRUMENTS. THE CRACK OCCURRED UNDER THE REDUCTION FITTING NUT, AND METALLURGICAL EXAMINATION REVEALED EVIDENCE OF OVERTIGHTENING.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 4/29/1985
Event Day of the Week Monday
Time of Event 1200
Event Time Zone Eastern Daylight Time
Event City STEVENSVILLE
Event State MARYLAND
Event Country --
Zipcode of the event site 21666
Event Date Year 1985
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport CASTLE MARINA
Event Location Nearest Airport ID OW6
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 15
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1400 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 310
Weather Observation Facility ID BWI
Elevation of weather observation facility 146
Distance of event from weather observation facility (units?) 21
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 25000
Sky/Lowest/Cloud Conditions Thin Broken
Sky Condition for Lowest Ceiling None
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) 2
Wind Direction (degrees magnetic) 330
Variable Wind Indicator Unknown
Wind Speed (knots) 11
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 19
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 2944
NTSB Notification Source --
NTSB Notification Date Apr 29 1985 12:00AM
NTSB Notification Time 1540
Fiche Number and/or location -used to find docket information 31879
Date of most recent change to record Jan 2 2001 9:15AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N9107V
NTSB Number BFO85FA041
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 In-flight
Aircraft Explosion Ground
Aircraft Manufacturer's Full Name MOONEY
Aircraft Model M20F
Aircraft Series Identifier M20F
Aircraft Serial Number 690024
Certified Max Gross Weight 2740
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 Oct 1 1984 12:00AM
Airframe hours since last inspection 75
Airframe Hours 2200
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name DANIEL S. ROBERSON
Aircraft Owner Street Address 14142 CASTLE BOULEVARD
Aircraft Owner City SILVER SPRING
Aircraft Owner State MD
Aircraft Owner Country
Aircraft Owner Zipcode 20904
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) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code W00
Departure City MITCHELLVILLE
Departure State MD
Departure Country
Departure Time 1100
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 Taxi
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:36AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 1
Runway Length 2700
Runway Width 20
Sight Seeing flight No
Air Medical Flight No
Medical Flight --