Aircraft Accident/Incident Report

Lebanon, Virginia 24266
Monday, October 30, 1995 18:30 EST

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that the airplane was in cruise flight at 5,500 feet when it began to vibrate severely. He stated that the subsequent oscillations in the pitch and yaw axis were so severe that he shut off the engine. The pilot made a forced landing in a soft field. During the landing roll, the nose gear and left main landing gear separated. Postaccident examination revealed that the outboard portion of a propeller blade had separated in flight. Metallurgical examination of the remaining propeller blade revealed a fracture with features indicative of fatigue cracking. The fatigue cracking features extended through about 80% of the cross section of the blade. The origin area of the fatigue cracking showed presence of corrosion damage. The airplane was in storage about 22 years. AD69-09-03 required all 76EM series propellers to be modified and a 'K' stamped after the serial number. The 'K' modification thinned and retuned the entire blade for improved vibratory characteristics. This modification lowered the stresses in the minimum power operating range. The AD also required that the tachometer be placarded to avoid continuous operation between 2150-2350 RPM. The propeller showed no 'K' stamp afer the serial number, and the pilot stated that he knew of no placard that existed in the airplane.

NTSB Probable Cause Narrative

failure of the propeller blade due to fatigue cracking originating from corrosion damage. A related factor was the soft terrain encountered during the forced landing.

Event Information

Type of Event Accident
Event Date 10/30/1995
Event Day of the Week Monday
Time of Event 1830
Event Time Zone Eastern Standard Time
Event City LEBANON
Event State VIRGINIA
Event Country --
Zipcode of the event site 24266
Event Date Year 1995
Event Date Month 10
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 Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1840 Eastern Standard Time
Direction of event from weather observation facility (degrees) 92
Weather Observation Facility ID MKJ
Elevation of weather observation facility 2559
Distance of event from weather observation facility (units?) 35
Time Zone of the weather observation EST
Lighting Conditions Night/Dark
Lowest Ceiling Height 9000
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 15
Dew Point at event time (in degress fahrenheit) -1
Wind Direction (degrees magnetic) 110
Variable Wind Indicator Unknown
Wind Speed (knots) 3
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) 2141
NTSB Notification Source --
NTSB Notification Date Oct 30 1995 12:00AM
NTSB Notification Time 2314
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 7 2000 4:39PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N477SP
NTSB Number BFO96LA015
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 None
Aircraft Manufacturer's Full Name Piper
Aircraft Model PA-28-180
Aircraft Series Identifier PA-28-180
Aircraft Serial Number 28-1210
Certified Max Gross Weight 2400
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 May 1 1995 12:00AM
Airframe hours since last inspection 108
Airframe Hours 1390
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name DANIEL D. DEFERIE
Aircraft Owner Street Address 2951 FRONT ST STE 3650
Aircraft Owner City RICHLANDS
Aircraft Owner State VA
Aircraft Owner Country
Aircraft Owner Zipcode 24641
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 VJI
Departure City ABINGDON
Departure State VA
Departure Country
Departure Time 1820
Departure Time Zone EST
Destination Same as Local Flt --
Destination Airport Code 6V3
Destination City RICHLANDS
Destination State VA
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 --