Mariposa-Yosemite Airport
Aircraft Accident/Incident Report

Mariposa, California 95338
Monday, September 17, 1984 19:52 PDT

NTSB Narrative Summary Released at Completion of Accident

THE ACFT COLLIDED WITH A TREE & TELEPHONE POLE DURING A GO-AROUND MANEUVER ON RWY 26. INVESTIGATION REVEALED THAT THE ACFT EXITED THE LEFT SIDE OF RWY 26 ABOUT 1625 FT BEYOND THE THRESHOLD. ALTHOUGH THERE WERE NO EYEWITNESSES TO THE ACCIDENT A GROUND WITNESS REPORTED THAT THE ACFT LANDED NORMALLY BUT THAT AS THE ACFT REACHED MID-FIELD, THE ENG SOUND 'INCREASED', FOLLOWED BY TWO 'THUD' SOUNDS & A FIREBALL. A PLT, WHO LANDED 15 MINS AFTER THE ACCIDENT REPORTED 90 DEG X-WIND PREVAILED & STATED 'IT TOOK MAXIMUM DEFLECTION OF THE CONTROL SURFACES TO KEEP THE ACFT ALIGNED WITH THE RWY CENTERLINE.' THE MAX DEMONSTRATED X-WIND COMPONENT FOR THE ACCIDENT ACFT WAS 17 KTS.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 9/17/1984
Event Day of the Week Monday
Time of Event 1952
Event Time Zone Pacific Daylight Time
Event City MARIPOSA
Event State CALIFORNIA
Event Country --
Zipcode of the event site 95338
Event Date Year 1984
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport MARIPOSA-YOSEMITE
Event Location Nearest Airport ID 068
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 1
Degrees magnetic from airport 253
Airport Elevation 2200
Weather Briefing Completeness Unknown
Investigator's weather source Witness
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Night/Dark
Lowest Ceiling Height 2000
Lowest Non-Ceiling Height 2000
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Broken
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) 24
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Variable
Wind Speed (knots) 17
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 20
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
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) 2882
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 26861
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 N6406U
NTSB Number LAX84FA484
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 Ground
Aircraft Explosion Ground
Aircraft Manufacturer's Full Name MOONEY
Aircraft Model M20C
Aircraft Series Identifier M20C
Aircraft Serial Number 2153
Certified Max Gross Weight 2050
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 Unknown
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name MARY M. CANABOU
Aircraft Owner Street Address P.O. BOX 2332
Aircraft Owner City OAKHURST
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode
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 Yes - certificate holder
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 HWD
Departure City HAYWARD
Departure State CA
Departure Country
Departure Time 0
Departure Time Zone
Destination Same as Local Flt crash at destination city
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Takeoff
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 26
Runway Length 3300
Runway Width 50
Sight Seeing flight No
Air Medical Flight No
Medical Flight --