Aircraft Accident/Incident Report

New Philadelphi, Ohio 44663
Wednesday, December 26, 1984 20:00 EST

NTSB Narrative Summary Released at Completion of Accident

PLT FELT VIBRATION AND REDUCED POWER ON BOTH ENGINES TO IDLE. PLT HEARD A 'THUD' AND DISCOVERED THE LEFT PROPELLER HAD SEPARATED CUTTING THROUGH THE NOSE OF THE ACFT AS IT DEPARTED. THE PROPELLER WAS NOT LOCATED. TWO OF THE SIX PROPELLER BOLTS REMAINED WITH THE ACFT. METALLURGICAL EXAM OF THE TWO BOLTS REVEALED FATIGUE PROGRESSION STEMMING FROM NUMEROUS ORIGINS.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 12/26/1984
Event Day of the Week Wednesday
Time of Event 2000
Event Time Zone Eastern Standard Time
Event City NEW PHILADELPHI
Event State OHIO
Event Country --
Zipcode of the event site 44663
Event Date Year 1984
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 0
Degrees magnetic from airport 0
Airport Elevation 0
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 2000 Eastern Standard Time
Direction of event from weather observation facility (degrees) 360
Weather Observation Facility ID CAK
Elevation of weather observation facility 1228
Distance of event from weather observation facility (units?) 28
Time Zone of the weather observation EST
Lighting Conditions Night/Dark
Lowest Ceiling Height 8000
Lowest Non-Ceiling Height 5000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 12
Air Temperature at event time (in degrees celsius) -3
Dew Point at event time (in degress fahrenheit) -8
Wind Direction (degrees magnetic) 90
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) 3269
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 27433
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 N6505Y
NTSB Number CHI85LA079
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name PIPER
Aircraft Model PA-23-250
Aircraft Series Identifier PA-23-250
Aircraft Serial Number 27-3793
Certified Max Gross Weight 5200
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 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Dec 3 1984 12:00AM
Airframe hours since last inspection 353
Airframe Hours 9890
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name LEWIS J. MANYAK
Aircraft Owner Street Address 47 CANTERBURY DR.
Aircraft Owner City ATHENS
Aircraft Owner State OH
Aircraft Owner Country
Aircraft Owner Zipcode 45701
Operator is an individual? --
Operator Name APPALACHIAN AVIATION
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address PO BOX 277
Operator City ALBANY
Operator State OH
Operator Country
Operator Zip code 45710
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) Positioning
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code 22I
Departure City MCARTHUR
Departure State OH
Departure Country
Departure Time 1900
Departure Time Zone EST
Destination Same as Local Flt --
Destination Airport Code ERI
Destination City ERIE
Destination State PA
Destination Country
Specific Phase of Flight Cruise
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 --