Aircraft Accident/Incident Report

Dublin, New Hampshire 03444
Monday, August 7, 1995 19:20 EDT

NTSB Narrative Summary Released at Completion of Accident

THE PILOT WAS CRUISING AT 4500 FEET WHEN HE OBSERVED A LOW OIL PRESSURE INDICATION FOLLOWED BY A TOTAL LOSS OF ENGINE POWER. THE PILOT PERFORMED A FORCED LANDING ON AN OPEN FIELD, DURING WHICH THE NOSE GEAR COLLAPSED, AND THE FIREWALL BUCKLED. THE FAA INSPECTOR STATED THAT ALL PISTON PINS WERE REUSED AT LAST OVERHAUL, 121 HOURS PRIOR TO THE ACCIDENT. DURING POSTACCIDENT EXAMINATION, ALL PISTON PINS WERE FOUND TO BE BELOW SERVICE LIMITS. ADDITIONALLY, '...THE ENGINE FAILURE RESULTED FROM METAL PARTICLES GENERATED BY THE LOOSE FITTING PISTON PIN PLUGS, CAUSING PROGRESSIVE CONTAMINATION OF THE ENGINE LUBRICATION SYSTEM.'

NTSB Probable Cause Narrative

THE LOSS OF ENGINE POWER DUE TO IMPROPER MAJOR OVERHAUL OF THE ENGINE BY THE REUSE OF WORN PISTON PINS. THE ROUGH/ UNEVEN TERRAIN IN THE EMERGENCY LANDING AREA WAS A FACTOR.

Event Information

Type of Event Accident
Event Date 8/7/1995
Event Day of the Week Monday
Time of Event 1920
Event Time Zone Eastern Daylight Time
Event City DUBLIN
Event State NEW HAMPSHIRE
Event Country --
Zipcode of the event site 03444
Event Date Year 1995
Event Date Month 8
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 --
Degrees magnetic from airport --
Airport Elevation --
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) 90
Weather Observation Facility ID ASH
Elevation of weather observation facility 200
Distance of event from weather observation facility (units?) 25
Time Zone of the weather observation EDT
Lighting Conditions Dusk
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 40
Air Temperature at event time (in degrees celsius) 23
Dew Point at event time (in degress fahrenheit) 7
Wind Direction (degrees magnetic) 100
Variable Wind Indicator Unknown
Wind Speed (knots) 8
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
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) 1144
NTSB Notification Source --
NTSB Notification Date Aug 7 1995 12:00AM
NTSB Notification Time 2040
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 7 2000 4:31PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N9310S
NTSB Number NYC95LA183
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 BEECH
Aircraft Model C23
Aircraft Series Identifier C23
Aircraft Serial Number 1633
Certified Max Gross Weight 2450
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 Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name MARBLEHEAD TRSPTN. SVC., INC.
Aircraft Owner Street Address 15 BLUEBERRY RD
Aircraft Owner City MARBLEHEAD
Aircraft Owner State MA
Aircraft Owner Country
Aircraft Owner Zipcode 01945
Operator is an individual? --
Operator Name JAMES D. GREGORY
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 15 BLUEBERRY RD
Operator City MARBLEHEAD
Operator State MA
Operator Country
Operator Zip code 01945
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 BVY
Departure City BEVERLY
Departure State MA
Departure Country
Departure Time 1830
Departure Time Zone EDT
Destination Same as Local Flt --
Destination Airport Code EEN
Destination City KEENE
Destination State NH
Destination Country
Specific Phase of Flight Cruise
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 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --