Aircraft Accident/Incident Report

Fort Chaffee, Arkansas 72905
Friday, March 1, 1991 16:55 CST

NTSB Narrative Summary Released at Completion of Accident

THE PILOT OF THE MULTI-ENGINE AIRCRAFT REPORTED THAT HIS RIGHT ENGINE WAS LOSING OIL AS HE WAS CLIMBING TO CRUISE ALTITUDE. HE SECURED THE ENGINE, FEATHERED THE PROPELLER, AND MANEUVERED TO RETURN TO THE AIRPORT. THE PILOT TRIMMED THE AIRCRAFT FOR SINGLE ENGINE OPERATION AND EXTENDED THE MAIN LANDING GEAR. DURING THE APPROACH, THE OPERATING LEFT ENGINE WOULD NOT DEVELOP FULL POWER AND THE PILOT REPORTED TO ATC THAT HE COULD NOT MAKE THE AIRPORT. THE AIRCRAFT CONTINUED ITS EMERGENCY DESCENT, IMPACTED TREES, AND DESCENDED UNCONTROLLED THROUGH A DENSELY WOODED AREA. A FUEL TANK RUPTURED DURING THE UNCONTROLLED DESCENT THROUGH THE TREES AND A FIRE/EXPLOSION OCCURRED. THE AIRCRAFT CONTINUED TO BURN AFTER GROUND IMPACT. BOTH ENGINES WERE DISASSEMBLED AND NUMEROUS MECHANICAL ANOMALIES WERE FOUND. THEY HAD BEEN RECENTLY OVERHAULED. THIS WAS THE FIRST FLIGHT OF THE AIRCRAFT SINCE THE ENGINE OVERHAULS. THE PILOT/OWNER WAS EN ROUTE TO SELL THE AIRCRAFT WHEN THE ACCIDENT OCCURRED.

NTSB Probable Cause Narrative

THE PILOT'S OPERATION OF THE AIRCRAFT WITH KNOWN DEFICIENCIES IN EQUIPMENT. FACTORS WERE THE IMPROPER OVERHAUL OF THE ENGINES BY OTHER MAINTENANCE PERSONNEL RESULTING IN OIL LOSS, DETERIORATED ENGINE PERFORMANCE, AND UNSUITABLE TERRAIN.

Event Information

Type of Event Accident
Event Date 3/1/1991
Event Day of the Week Friday
Time of Event 1655
Event Time Zone Central Standard Time
Event City FORT CHAFFEE
Event State ARKANSAS
Event Country --
Zipcode of the event site 72905
Event Date Year 1991
Event Date Month 3
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 Witness
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 6000
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) 25
Air Temperature at event time (in degrees celsius) 23
Dew Point at event time (in degress fahrenheit) 9
Wind Direction (degrees magnetic) 240
Variable Wind Indicator Unknown
Wind Speed (knots) 14
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 27
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) 0
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 643
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 44901
Date of most recent change to record Dec 12 2000 9:31AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N7488S
NTSB Number FTW91FA045
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 Ground
Aircraft Manufacturer's Full Name PIPER
Aircraft Model PA-60-600
Aircraft Series Identifier PA-60-600
Aircraft Serial Number 60-0045-100
Certified Max Gross Weight 5500
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 Unknown
Date of Last Inspection --
Airframe hours since last inspection 0
Airframe Hours --
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name LAWRENCE R. EDWARDS
Aircraft Owner Street Address 3109 GRAND AVENUE
Aircraft Owner City FORT SMITH
Aircraft Owner State AR
Aircraft Owner Country
Aircraft Owner Zipcode 72904
Operator is an individual? --
Operator Name LAWRENCE R. EDWARDS
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 3109 GRAND AVENUE
Operator City FORT SMITH
Operator State AR
Operator Country
Operator Zip code 72904
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 FSM
Departure City FORT SMITH
Departure State AR
Departure Country
Departure Time 1640
Departure Time Zone CST
Destination Same as Local Flt --
Destination Airport Code VKS
Destination City VICKSBURG
Destination State MS
Destination Country
Specific Phase of Flight Approach
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 --