Aircraft Accident/Incident Report

El Reno, Oklahoma 73036
Saturday, October 9, 1999 15:00 CDT

NTSB Narrative Summary Released at Completion of Accident

A total loss of engine power occurred during a dual cross-county instructional flight. During the ensuing forced landing in soft terrain, the nose landing gear collapsed. Examination of the Continental O-200-A engine, revealed that the intake rocker arm on the #4 cylinder was separated. Metallurgical examination indicated that a fatigue fracture initiated on the push rod side of the rocker arm. There was no evidence of machining defects or mechanical deformation associated with the fatigue crack propagation. The #4 cylinder had accumulated 76 hours of operation since new at the time of the rocker arm failure. No maintenance records were found for any repair, overhaul, or replacement of the rocker arm for the #4 cylinder. Total time on the engine was 3,198 hours.

NTSB Probable Cause Narrative

The total loss of engine power resulting from a fatigue failure of the intake rocker arm for the #4 cylinder. A factor was the soft terrain encountered during the forced landing.

Event Information

Type of Event Accident
Event Date 10/9/1999
Event Day of the Week Saturday
Time of Event 1500
Event Time Zone Central Daylight Time
Event City EL RENO
Event State OKLAHOMA
Event Country --
Zipcode of the event site 73036
Event Date Year 1999
Event Date Month 10
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 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 Unknown
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 0
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
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) 1178
NTSB Notification Source --
NTSB Notification Date Oct 9 1999 12:00AM
NTSB Notification Time 1800
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Jan 10 2001 9:57AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N3603J
NTSB Number FTW00LA009
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 Cessna
Aircraft Model 150G
Aircraft Series Identifier 150G
Aircraft Serial Number 15064903
Certified Max Gross Weight 1600
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 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Mar 24 1999 12:00AM
Airframe hours since last inspection 30
Airframe Hours 3198
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name TIMELESS IMAGES, INC.
Aircraft Owner Street Address 600 HOLLY DRIVE
Aircraft Owner City EDMOND
Aircraft Owner State OK
Aircraft Owner Country
Aircraft Owner Zipcode 73034
Operator is an individual? --
Operator Name SUNSHINE AVIATION
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 518 AIRPORT ROAD
Operator City GUTHRIE
Operator State OK
Operator Country
Operator Zip code 73044
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) Instructional
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code GOK
Departure City GUTHRIE
Departure State OK
Departure Country
Departure Time 1400
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code HBR
Destination City HOBART
Destination State OK
Destination Country
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 10 2001 12:26PM
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 --