Auxiliary Airport
Aircraft Accident/Incident Report

Mobile, Arizona 85239
Wednesday, October 24, 1990 10:54 MST

NTSB Narrative Summary Released at Completion of Accident

THE AIRCRAFT WAS IN THE MAINTENANCE SHOP FOR CORRECTION OF A ROUGH RUNNING ENGINE AT CLIMB POWER, WITH ACCOMPANYING FUEL FLOW FLUCTUATIONS. THE MAINTENANCE DEPARTMENT REPLACED THE FUEL PUMP, FLOW DIVIDER AND THE ENGINE SPARK PLUGS. THE ACCIDENT FLIGHT WAS A POST MAINTENANCE TEST FLIGHT TO APPROVE THE AIRCRAFT FOR RETURN TO SERVICE. THE AIRPLANE WAS ON THE SECOND TOUCH AND GO DEPARTURE WHEN THE ENGINE QUIT AND AIRCRAFT COLLIDED WITH THE GROUND DURING THE ATTEMPTED FORCED LANDING. THE ENGINE WAS TEST RUN USING THE COMPONENTS IN THE AIRCRAFT AND WOULD ONLY RUN VERY ROUGH AT NO HIGHER THAN 1400 RPM. AN OBSTRUCTION WAS FOUND IN THE FUEL CONTROL UNIT. OPTICAL EXAMINATION OF THE FOREIGN OBJECT REVEALED THAT IT WAS SIMILAR IN COMPOSURE, COLOR AND TEXTURE TO FUEL SYSTEM SEAL MATERIAL. THE ENGINE WAS MANUFACTURED IN JULY OF 1990 AND INSTALLED IN THE AIRFRAME ON AUGUST 14, 1990. THE FUEL CONTROL UNIT WAS SUPPLIED BY CONTINENTAL ALREADY INSTALLED ON THE ENGINE. AS OF THE ACCIDENT, THE ENGINE HAD ACCURED A TOTAL TIME OF 256 HOURS.

NTSB Probable Cause Narrative

A FUEL FLOW INTERRUPTION DUE TO A FUEL SYSTEM SEAL FRAGMENT BECOMING LODGED IN THE FUEL CONTROL UNIT AND THE MANUFACTURER'S INADEQUATE QUALITY CONTROL PROCEDURES.

Event Information

Type of Event Accident
Event Date 10/24/1990
Event Day of the Week Wednesday
Time of Event 1054
Event Time Zone Mountain Standard Time
Event City MOBILE
Event State ARIZONA
Event Country --
Zipcode of the event site 85239
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 AUXILIARY
Event Location Nearest Airport ID 1AZ0
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 1268
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) 20
Air Temperature at event time (in degrees celsius) -18
Dew Point at event time (in degress fahrenheit) -18
Wind Direction (degrees magnetic) 120
Variable Wind Indicator Unknown
Wind Speed (knots) 8
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
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) 1881
NTSB Notification Source --
NTSB Notification Date Oct 24 1990 12:00AM
NTSB Notification Time 1255
Fiche Number and/or location -used to find docket information 43778
Date of most recent change to record Dec 18 2002 11:28AM
User who most recently changed record NTSB\GIUV
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N1568A
NTSB Number LAX91LA017
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed Company VFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name BEECH
Aircraft Model F33A
Aircraft Series Identifier F33A
Aircraft Serial Number CE 1332
Certified Max Gross Weight 3400
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 5
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection --
Airframe hours since last inspection 0
Airframe Hours --
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name AIRLINE TRAINING CENTER
Aircraft Owner Street Address PO BOX 70
Aircraft Owner City GOODYEAR
Aircraft Owner State AZ
Aircraft Owner Country
Aircraft Owner Zipcode 85338
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) Unknown
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code GYR
Departure City GOODYEAR
Departure State AZ
Departure Country
Departure Time 1028
Departure Time Zone MST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code GYR
Destination City
Destination State
Destination Country
Specific Phase of Flight Takeoff
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 9
Runway Length 4500
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --