Lampasas Muni. Airport
Aircraft Accident/Incident Report

Lampasas, Texas 76550
Saturday, October 6, 1990 11:05 CDT

NTSB Narrative Summary Released at Completion of Accident

THE ENGINE LOST PARTIAL POWER AS THE PILOT TURNED CROSSWIND AFTER TAKEOFF, FOLLOWED B A COMPLETE POWER LOSS DURING THE TURN TO DOWNWIND. THE PILOT SET UP FOR A FORCED LANDING TO THE BEST AVAILABLE FIELD WHICH WAS COVERED WITH BRUSH AND TREES. JUST PRIOR TO TOUCHDOWN, THE ENGINE HAD A MOMENTARY SURGE OF POWER AND THEN QUIT AGAIN. DURING THE LANDING ROLL, THE LEFT MAIN LANDING GEAR COLLAPSED AND THE AIRPLANE NOSED OVER. INVESTIGATION REVEALED THAT THE NO. 6 CYLINDER INTAKE VALVE SPRING WAS BROKEN AND THE CYLINDER WAS RUNNING COLD. ADDITIONALLY, PARTICULATE CONTAMINATION WAS FOUND IN THE FUEL SYSTEM.

NTSB Probable Cause Narrative

THE FAILURE OF A CYLINDER INTAKE VALVE SPRING.

Event Information

Type of Event Accident
Event Date 10/6/1990
Event Day of the Week Saturday
Time of Event 1105
Event Time Zone Central Daylight Time
Event City LAMPASAS
Event State TEXAS
Event Country --
Zipcode of the event site 76550
Event Date Year 1990
Event Date Month 10
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport LAMPASAS MUNI.
Event Location Nearest Airport ID T28
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 1215
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 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 15
Air Temperature at event time (in degrees celsius) 27
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 180
Variable Wind Indicator Unknown
Wind Speed (knots) 15
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 0
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 2
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 1508
NTSB Notification Source --
NTSB Notification Date Oct 7 1990 12:00AM
NTSB Notification Time 730
Fiche Number and/or location -used to find docket information 42922
Date of most recent change to record Dec 12 2000 5:28PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N11270
NTSB Number FTW91LA004
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 WACO
Aircraft Model RNF
Aircraft Series Identifier RNF
Aircraft Serial Number 3467
Certified Max Gross Weight 1938
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 3
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Aug 2 1990 12:00AM
Airframe hours since last inspection 4
Airframe Hours 2751
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name MCCLUNEY, CLIFF A.
Aircraft Owner Street Address 27 HILLCREST BLVD.
Aircraft Owner City KELLER
Aircraft Owner State TX
Aircraft Owner Country
Aircraft Owner Zipcode 76248
Operator is an individual? --
Operator Name MCCLUNEY, CLIFF A.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 27 HILLCREST BLVD.
Operator City KELLER
Operator State TX
Operator Country
Operator Zip code 76248
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 Yes
Departure Airport Code T28
Departure City
Departure State
Departure Country
Departure Time 1100
Departure Time Zone CDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code NONE
Destination City
Destination State
Destination Country
Specific Phase of Flight Landing
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 16
Runway Length 3810
Runway Width 60
Sight Seeing flight No
Air Medical Flight No
Medical Flight --