Aircraft Accident/Incident Report

Myerstown, Pennsylvania 17067
Monday, December 2, 1996 15:21 EST

NTSB Narrative Summary Released at Completion of Accident

During the climb after takeoff, between 3,500 and 4,000 feet, the pilot noticed the engine oil pressure decreasing and the oil temperature increasing. The pilot advised the controller that he was experiencing a problem, and he was provided radar vectors to the nearest airport. During vectors, the engine failed, and oil covered the windshield and pilot's side window. Unable to see the airport, the pilot completed a forced landing to an open field, where the airplane impacted the ground. The engine had accumulated about 440 hrs of flight time, since it was last overhauled (by the manufacturer). Investigation revealed that remanufactured connecting rods had been installed. Examination of the engine revealed four of the six connecting rod bearings had melted at the crankshaft, and fatigue cracks were found on the number four connecting rod and end cap. When the connecting rod end cap retaining nuts were removed, rings of moderate wear and fretting were found in the nut recesses where the nuts contacted the rods.

NTSB Probable Cause Narrative

fatigue failure of the connecting rod to crankshaft attachments, due to inadequate overhaul of the engine by the manufacturer, which resulted in a loss of engine power and a forced landing. Factors relating to the accident included the discharge of oil from the ruptured engine, which subsequently obstructed the pilot's view through the windshield and side window, preventing him from having an unobstructed view of the emergency landing area.

Event Information

Type of Event Accident
Event Date 12/2/1996
Event Day of the Week Monday
Time of Event 1521
Event Time Zone Eastern Standard Time
Event City MYERSTOWN
Event State PENNSYLVANIA
Event Country --
Zipcode of the event site 17067
Event Date Year 1996
Event Date Month 12
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 1
Degrees magnetic from airport 60
Airport Elevation --
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1455 Eastern Standard Time
Direction of event from weather observation facility (degrees) 90
Weather Observation Facility ID RDG
Elevation of weather observation facility 344
Distance of event from weather observation facility (units?) 17
Time Zone of the weather observation EST
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 8000
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) 20
Air Temperature at event time (in degrees celsius) 7
Dew Point at event time (in degress fahrenheit) 3
Wind Direction (degrees magnetic) 300
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) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None --
Injury Total Serious 1
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 1741
NTSB Notification Source --
NTSB Notification Date Dec 2 1996 12:00AM
NTSB Notification Time 1533
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 10:30AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N394PM
NTSB Number NYC97LA024
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed VFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Piper
Aircraft Model PA-46-350P
Aircraft Series Identifier PA-46-350P
Aircraft Serial Number 4622153
Certified Max Gross Weight 4300
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 6
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Mar 16 1996 12:00AM
Airframe hours since last inspection 233
Airframe Hours 1433
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name MARK J. ANTON
Aircraft Owner Street Address PO BOX 603
Aircraft Owner City SHORT HILLS
Aircraft Owner State NJ
Aircraft Owner Country
Aircraft Owner Zipcode 07078
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 MDT
Departure City HARRISBURG INTL
Departure State PA
Departure Country
Departure Time 1508
Departure Time Zone EST
Destination Same as Local Flt --
Destination Airport Code N52
Destination City SOMERSET
Destination State NJ
Destination Country
Specific Phase of Flight Emergency landing
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 --