Mineral Wells Airport
Aircraft Accident/Incident Report

Milsap, Texas 76066
Friday, December 24, 2010 14:40 CST

NTSB Narrative Summary Released at Completion of Accident

The airplane was climbing through about 9,000 feet mean sea level (msl) when the pilot noticed that the engine was not producing full power and that the engine oil pressure had dropped. The pilot declared an emergency and asked an air traffic controller for a descent and vectors for an instrument approach to a nearby airport. While descending through about 3,000 feet msl in instrument meteorological conditions, the “engine quit.” The airplane descended out of the clouds about 500 feet above ground level, the pilot made an engine-out landing in an open field, and the nose gear collapsed. A review of the airplane’s maintenance documents showed that the engine had recently been partially removed during replacement of the starter adapter. According to the airplane’s maintenance logbooks, the airplane was inspected after this maintenance activity, and a subsequent ground run of the engine was satisfactory, with no leaks noted. Further, the pilot reported that after the maintenance was completed, he flew the airplane twice and had no leaks and no problems. A postaccident teardown examination of the engine revealed a breach in the crankcase and several areas inside the engine that exhibited lubrication distress, thermal distress, and mechanical damage. The examination revealed no other preincident mechanical malfunctions or failures that would have precluded normal operation. The reason for the in-flight loss of engine oil could not be determined.

NTSB Probable Cause Narrative

A total loss of engine power in flight due to a loss of engine oil for reasons that could not be determined during a postaccident teardown examination of the engine.

Event Information

Type of Event Incident
Event Date 12/24/2010
Event Day of the Week Friday
Time of Event 1440
Event Time Zone Central Standard Time
Event City Milsap
Event State TEXAS
Event Country --
Zipcode of the event site 76066
Event Date Year 2010
Event Date Month 12
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 324213N
Event Location Longitude 0975924W
Event Location Airport Mineral Wells Airport
Event Location Nearest Airport ID MWL
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 6
Degrees magnetic from airport --
Airport Elevation 974
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 2053 Central Standard Time
Direction of event from weather observation facility (degrees) 315
Weather Observation Facility ID MWL
Elevation of weather observation facility 974
Distance of event from weather observation facility (units?) 6
Time Zone of the weather observation CST
Lighting Conditions Day
Lowest Ceiling Height 1300
Lowest Non-Ceiling Height 500
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 6
Dew Point at event time (in degress fahrenheit) 4
Wind Direction (degrees magnetic) 320
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 5
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.13
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report KMWL 242053z AUTO 35011KT 10SM SCT008 BKN013 OVC02
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 30766
NTSB Notification Source FAA Fort Worth FSDO
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Nov 26 2012 1:03PM
User who most recently changed record bakd
Basic weather conditions Instrument Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N921DZ
NTSB Number CEN11IA146
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? Yes
Damage Minor
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name COLUMBIA
Aircraft Model LC41
Aircraft Series Identifier 550FG
Aircraft Serial Number 41695
Certified Max Gross Weight 3600
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats 2
Cabin Crew Seats --
Passenger Seats 2
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 Feb 16 2010 12:00AM
Airframe hours since last inspection 78
Airframe Hours 458
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type C91-A
Aircraft Owner Name John Erwin Christie
Aircraft Owner Street Address --
Aircraft Owner City Hudson Oaks
Aircraft Owner State TX
Aircraft Owner Country USA
Aircraft Owner Zipcode 76087
Operator is an individual? Yes
Operator Name John Erwin Christie
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City Hudson Oaks
Operator State TX
Operator Country USA
Operator Zip code 76087
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
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 50F
Departure City Cresson
Departure State TX
Departure Country USA
Departure Time 1415
Departure Time Zone CST
Destination Same as Local Flt --
Destination Airport Code DVT
Destination City Phoenix
Destination State AZ
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Nov 11 2012 9:34PM
User who most recently changed record latt
Since inspection or accident Time of Accident
Event Location Runway Number and Location 31
Runway Length 5996
Runway Width 100
Sight Seeing flight No
Air Medical Flight No
Medical Flight --