Aircraft Accident/Incident Report

Russellville, Arkansas 72801
Monday, August 17, 1992 15:45 CDT

NTSB Narrative Summary Released at Completion of Accident

THE PILOT, WHO WAS ALSO THE MECHANIC, WAS PERFORMING AN IN FLIGHT RIGGING CHECK OF THE AIRPLANE. DURING CLIMB, A POP SOUND WAS HEARD AND PROPELLER THRUST WAS LOST. MOVEMENT OF THE PROPELLER CONTROL HAD NO EFFECT AND AN EMERGENCY DESCENT WAS INITIATED BY THE PILOT. A 35 TO 40 DEGREE NOSE DOWN ATTITUDE WAS REQUIRED TO MAINTAIN 85 KNOTS DURING THE FORCED LANDING TO A ROAD. THE ENGINE WAS NOT SECURED BY THE PILOT. A HARD LANDING OCCURRED AT AN ESTIMATED 1,800 FEET PER MINUTE DESCENT RATE, ACCORDING TO THE PILOT. THE PROPELLER SYSTEM WAS TORN DOWN AND TWO STAKING PINS WERE MISSING. THE GUIDE COLLAR, ROD, FORK, AND PISTON HAD ROTATED AROUND THE HUB. THE PROPELLER BLADES WERE DISCONNECTED FROM THE PITCH CHANGE MECHANISM. THE PROPELLER ASSEMBLY HAD BEEN OVERHAULED AND INSTALLED ON THE AIRCRAFT APPROXIMATELY 31.7 HOURS PRIOR TO THE FAILURE.

NTSB Probable Cause Narrative

THE PILOT'S IMPROPER FLARE. FACTORS WERE THE PROPELLER SYSTEM'S PITCH CHANGE MECHANISM DISCONNECTED DUE TO IMPROPER OVERHAUL AND FAILURE TO INSTALL THE STAKING PINS BY OTHER MAINTENANCE PERSONNEL.

Event Information

Type of Event Accident
Event Date 8/17/1992
Event Day of the Week Monday
Time of Event 1545
Event Time Zone Central Daylight Time
Event City RUSSELLVILLE
Event State ARKANSAS
Event Country --
Zipcode of the event site 72801
Event Date Year 1992
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 0
Degrees magnetic from airport 0
Airport Elevation --
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 4500
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) 10
Air Temperature at event time (in degrees celsius) 29
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 0
Wind Velocity Indicator Light and Variable
Wind Gust Indicator Unknown
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) 2741
NTSB Notification Source --
NTSB Notification Date Aug 18 1992 12:00AM
NTSB Notification Time 850
Fiche Number and/or location -used to find docket information 47527
Date of most recent change to record Dec 11 2000 3:12PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N5981P
NTSB Number FTW92LA210
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 PIPER
Aircraft Model PA-24-180
Aircraft Series Identifier PA-24-180
Aircraft Serial Number 24-1074
Certified Max Gross Weight 2550
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 Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Aug 7 1992 12:00AM
Airframe hours since last inspection --
Airframe Hours 2265
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name HARGUS, HERBERT H.
Aircraft Owner Street Address 412 OLD POST RD.
Aircraft Owner City RUSSELLVILLE
Aircraft Owner State AR
Aircraft Owner Country
Aircraft Owner Zipcode 72801
Operator is an individual? --
Operator Name HARGUS, HERBERT H.
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 412 OLD POST RD.
Operator City RUSSELLVILLE
Operator State AR
Operator Country
Operator Zip code 72801
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) Other Work Use
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code MO6
Departure City
Departure State
Departure Country
Departure Time 1535
Departure Time Zone CDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Climb
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:35AM
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 --