Fort Worth Alliance Airport
Aircraft Accident/Incident Report

Haslet, Texas 76052
Saturday, February 17, 2001 12:35 CST

NTSB Narrative Summary Released at Completion of Accident

The airplane was approximately 40 minutes into the flight and 4 miles south of the destination airport in a normal descent when the propeller increased to maximum RPM. Shortly thereafter, the oil pressure light illuminated, and the pilot noticed the oil pressure gauge was indicating zero. Subsequently, the engine lost power, and the pilot elected to land in a field approximately 2 miles south of the runway threshold. The airplane touched down on soft ground, separating its landing gear. A post-accident examination of the engine revealed that there was no oil remaining in the engine, the oil filter internal element was collapsed inward, the oil filter converter plate gasket was found separated from the plate and broken in half, and the oil filter bypass valve was found installed improperly. The collapsed oil filter element and blown converter plate gasket are indicative of a cold weather and/or a high RPM start. With cold oil, the oil pressure became excessive due to the faulty bypass valve resulting in collapse of the filter and failure of the oil filter converter plate gasket.

NTSB Probable Cause Narrative

the improper installation of the oil filter bypass valve by an unknown person, which resulted in the loss of engine oil and subsequent loss of total power during a normal descent. A contributing factor to the accident was the lack of suitable terrain for the forced landing.

Event Information

Type of Event Accident
Event Date 2/17/2001
Event Day of the Week Saturday
Time of Event 1235
Event Time Zone Central Standard Time
Event City Haslet
Event State TEXAS
Event Country --
Zipcode of the event site 76052
Event Date Year 2001
Event Date Month 2
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport FORT WORTH ALLIANCE
Event Location Nearest Airport ID AFW
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 5
Degrees magnetic from airport 160
Airport Elevation 700
Weather Briefing Completeness Unknown
Investigator's weather source Pilot
Time of the weather observation
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID --
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation --
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 6
Air Temperature at event time (in degrees celsius) 7
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 360
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 17
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 23
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor 3
Injury Total None --
Injury Total Serious 1
Injury Total All 4
Investigating Agency NTSB
NTSB Docket Number (internal use) 11370
NTSB Notification Source
NTSB Notification Date Feb 17 2001 12:00AM
NTSB Notification Time 1250
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Feb 5 2002 9:58AM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office Fort Worth, Texas

Aircraft Involved

Aircraft #1

Aircraft Registration Number N8355L
NTSB Number FTW01LA068
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Piper
Aircraft Model PA32-R-301T
Aircraft Series Identifier --
Aircraft Serial Number 32R-8129051
Certified Max Gross Weight 3600
Aircraft Category Airplane
Aircraft Registration Class Not Registered
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 6
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection May 31 2000 12:00AM
Airframe hours since last inspection 58.6
Airframe Hours 2239.4
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Larry Herrera
Aircraft Owner Street Address 181 Hunter Street
Aircraft Owner City Cedar Hill
Aircraft Owner State TX
Aircraft Owner Country USA
Aircraft Owner Zipcode 75104
Operator is an individual? No
Operator Name Hest Aviation
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 118 Meadow Brook
Operator City Temple
Operator State TX
Operator Country USA
Operator Zip code 76502
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation --
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 ILE
Departure City Killeen
Departure State TX
Departure Country USA
Departure Time 1145
Departure Time Zone CST
Destination Same as Local Flt crash at destination city
Destination Airport Code AFW
Destination City Haslet
Destination State TX
Destination Country USA
Specific Phase of Flight Emergency descent/landing
Report sent to ICAO? No
Evacuation occurred Yes
Date of most recent change to record Jan 16 2002 9:04AM
User who most recently changed record MORJU
Since inspection or accident Last Inspection
Event Location Runway Number and Location 34L
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --