Chowchilla Airport
Aircraft Accident/Incident Report

Planada, California 95333
Thursday, March 25, 2004 9:45 PST

NTSB Narrative Summary Released at Completion of Accident

The airplane experienced a partial loss of engine power and impacted flat terrain while maneuvering over farm fields. The pilot was applying fertilizer to an agriculture field. He was in a climbing turn, about 150 feet above ground level (agl), when he felt the airplane shake as if it was approaching a stall. He advanced the throttle. The engine did not sound normal, and the airplane was not able to maintain altitude. He was over an orchard and directed the airplane towards one of the fields he was working. The pilot said he was over that field, fighting the stall buffet, when the airplane gave up flying, spun over to the right inverted, and nosed down to the ground 50 feet below. The pilot exited, and the airplane was subjected to a post impact fire. A Federal Aviation Administration (FAA) inspector performed a post accident examination of the airplane's engine at the operator's facility. He reported that the engine was a Continental IO-520-D that had folded under the wreckage against the ground, which provided protection from the post accident fire. Extensive heat damage was identified around cylinder number 5, which included local melting of the aluminum around the rocker cover and intake manifold. The number 5 cylinder fuel injector line was free of the fuel injector nozzle. The number 5 cylinder injector fuel line b-nut was found to be only finger tight. Examination of the airplane's maintenance logbook revealed that the engine oil cooler had been removed and replaced on March 12, 2004, approximately 36 flight hours prior to the accident. The FAA inspector said that a common practice used by mechanics was to move or adjust the number 5 cylinder fuel injector line in order to install or uninstall the engine oil cooler.

NTSB Probable Cause Narrative

the partial loss of engine power due to the separation of the number 5 cylinder fuel injector supply line. The fuel line separation was due to company maintenance personnel's failure to secure the b-nut fitting following maintenance. Factors in the accident were the unsuitable nature of the terrain where the engine problem developed and the pilot's failure to maintain airspeed while attempting to reach a suitable forced landing spot, which led to an inadvertent stall.

Event Information

Type of Event Accident
Event Date 3/25/2004
Event Day of the Week Thursday
Time of Event 945
Event Time Zone Pacific Standard Time
Event City Planada
Event State CALIFORNIA
Event Country --
Zipcode of the event site 95333
Event Date Year 2004
Event Date Month 3
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 371318N
Event Location Longitude 1201842W
Event Location Airport Chowchilla
Event Location Nearest Airport ID K2O6
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 7
Degrees magnetic from airport 340
Airport Elevation 242
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 953 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 250
Weather Observation Facility ID KMCE
Elevation of weather observation facility 156
Distance of event from weather observation facility (units?) 5
Time Zone of the weather observation PDT
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) 7
Air Temperature at event time (in degrees celsius) 8
Dew Point at event time (in degress fahrenheit) 7
Wind Direction (degrees magnetic) 260
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) 30.1
Density Altitude (feet) -338
Intensity of Precipitation --
METAR weather report --
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) 19005
NTSB Notification Source FAA
NTSB Notification Date Mar 25 2004 12:00AM
NTSB Notification Time 1110
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Jan 31 2006 7:35AM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office WP-FSDO-Fresno, CA

Aircraft Involved

Aircraft #1

Aircraft Registration Number N478Q
NTSB Number LAX04LA170
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 137: Agricultural
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name Cessna
Aircraft Model 188B
Aircraft Series Identifier --
Aircraft Serial Number 18802315T
Certified Max Gross Weight 4200
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 1
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jan 1 2004 12:00AM
Airframe hours since last inspection 116
Airframe Hours 5330
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Thiel AirCare, Inc
Aircraft Owner Street Address PO Box 605
Aircraft Owner City Chowchilla
Aircraft Owner State CA
Aircraft Owner Country USA
Aircraft Owner Zipcode 93610
Operator is an individual? No
Operator Name T-Craft Inc.
Operator Same as Owner? No
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 ZT8G
Owner has at least one certificate --
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation Agriculture
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) Aerial Application
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code K2O6
Departure City Chowchilla
Departure State CA
Departure Country USA
Departure Time 900
Departure Time Zone PST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code K2O6
Destination City --
Destination State --
Destination Country --
Specific Phase of Flight Maneuvering - aerial application
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Oct 21 2005 5:25PM
User who most recently changed record COOS
Since inspection or accident Time of Accident
Event Location Runway Number and Location NA
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --