Aircraft Accident/Incident Report

Torreon, New Mexico 87061
Friday, May 9, 1997 15:19 MDT

NTSB Narrative Summary Released at Completion of Accident

While in cruise flight at 8,500 feet msl, the pilot reported that he observed his oil pressure gauge 'indicating at or near zero.' He stated that he called ATC and began looking for a place to land. He then noticed that the 'oil temperature had begun to rise and the engine was running slightly rougher.' As he approached a highway on which he planned to land, 'the prop governor ceased to regulate the engine RPM and the engine begain to smell really hot.' On landing roll, the pilot stated that 'a gust of wind caused me to depart the left side of the road and the airplane subsequently impacted several sandy knolls.' Postimpact examination of the engine revealed an aluminum ball in the number four cylinder forward piston pin bore. Investigators stated that 'this was the result of the piston pin plug working in the bore for an extended period of time.' This would account for metal particles throughout the oil system and a rub mark on the interior of the cylinder wall. The oil journal leading to the number two cylinder was found with metal particles emanating from it and the number two and number three connecting rod bearings showed significant damage.

NTSB Probable Cause Narrative

failure of the forward number four piston pin plug, and the subsequent obstruction of internal oil passages of the lubricating system, which resulted in partial loss of engine power. Factors relating to the accident were: the crosswind condition and lack of suitable terrain for an emergency (precautionary) landing.

Event Information

Type of Event Accident
Event Date 5/9/1997
Event Day of the Week Friday
Time of Event 1519
Event Time Zone Mountain Daylight Time
Event City TORREON
Event State NEW MEXICO
Event Country --
Zipcode of the event site 87061
Event Date Year 1997
Event Date Month 5
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 Full
Investigator's weather source Weather Observation Facility
Time of the weather observation 1348 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 310
Weather Observation Facility ID FMN
Elevation of weather observation facility 5503
Distance of event from weather observation facility (units?) 100
Time Zone of the weather observation MDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 5000
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) 30
Air Temperature at event time (in degrees celsius) 20
Dew Point at event time (in degress fahrenheit) 5
Wind Direction (degrees magnetic) 120
Variable Wind Indicator Unknown
Wind Speed (knots) 10
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 Minor
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 1
Injury Total None 1
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 565
NTSB Notification Source --
NTSB Notification Date May 9 1997 12:00AM
NTSB Notification Time 1934
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 12:16PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N7853V
NTSB Number FTW97LA185
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed VFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Mooney
Aircraft Model M20C
Aircraft Series Identifier M20C
Aircraft Serial Number 2816
Certified Max Gross Weight 2575
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 May 16 1996 12:00AM
Airframe hours since last inspection 52
Airframe Hours 4568
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name BRYAN L. BURNS
Aircraft Owner Street Address P.O. BOX 634
Aircraft Owner City TIJERAS
Aircraft Owner State NM
Aircraft Owner Country
Aircraft Owner Zipcode 87059
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 4AC
Departure City ALBUQUERQUE
Departure State NM
Departure Country
Departure Time 1448
Departure Time Zone MDT
Destination Same as Local Flt --
Destination Airport Code 4AC
Destination City FARMINGTION
Destination State NM
Destination Country
Specific Phase of Flight Emergency landing
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 --