Aircraft Accident/Incident Report

Lehighton, Pennsylvania 18235
Sunday, June 29, 1986 11:00 EDT

NTSB Narrative Summary Released at Completion of Accident

THE PILOT OF THE HILLER 12C REPORTED AN OVERHEATED ENGINE FOLLOWED BY AN ENGINE FAILURE. DURING THE FORCED LANDING THE MAIN ROTOR FLEXED AND CUT THE TAIL BOOM OFF THE THE AIRCRAFT. THE AIRCRAFT WAS EXAMINED. 10 OZ. OF A LIQUID WAS FOUND IN THE FUEL SYSTEM. 7 OZ. WAS FUEL AND 3 OZ. WAS WATER. THE REPORTED ENGINE OVERHEAT AND ENGINE FAILURE COULD NOT BE REPRODUCED. THE ENGINE RAN SATISFACTORLY. THE PILOT AND PASSENGER WERE UNINJURED IN THE ACCIDENT WHICH OCCURRED IN DAYLIGHT. THE PLT/OWNER HAD HABIT OF NOT REFUELING AFT FLTS THUS LEAVING TKS LESS THAN FULL AND SUSCEPTIBLE TO WATER CONDESATION.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 6/29/1986
Event Day of the Week Sunday
Time of Event 1100
Event Time Zone Eastern Daylight Time
Event City LEHIGHTON
Event State PENNSYLVANIA
Event Country --
Zipcode of the event site 18235
Event Date Year 1986
Event Date Month 6
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 0
Degrees magnetic from airport 0
Airport Elevation 0
Weather Briefing Completeness Unknown
Investigator's weather source Pilot
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 Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling Unknown
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 0
Air Temperature at event time (in degrees celsius) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 0
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
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 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 2414
NTSB Notification Source --
NTSB Notification Date Jun 30 1986 12:00AM
NTSB Notification Time 830
Fiche Number and/or location -used to find docket information 33089
Date of most recent change to record Dec 13 2000 4:09PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N1042C
NTSB Number NYC86LA160
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 HILLER
Aircraft Model 12C
Aircraft Series Identifier 12C
Aircraft Serial Number 846
Certified Max Gross Weight 3100
Aircraft Category Helicopter
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 3
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Nov 1 1985 12:00AM
Airframe hours since last inspection 60
Airframe Hours 200
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name ALBERT FINKELSTEIN
Aircraft Owner Street Address 277 BROADWAY
Aircraft Owner City NEW YORK
Aircraft Owner State NY
Aircraft Owner Country
Aircraft Owner Zipcode 10007
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 Yes
Departure Airport Code
Departure City
Departure State
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 Landing
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 0
Runway Length 0
Runway Width 0
Sight Seeing flight No
Air Medical Flight No
Medical Flight --