Show Low Muni Airport
Aircraft Accident/Incident Report

Show Low, Arizona 85901
Thursday, October 31, 1996 9:05 MST

NTSB Narrative Summary Released at Completion of Accident

The aircraft had been parked on the ramp for 7 days prior to the accident flight because of poor weather, which included snow, rain, and below freezing temperatures. The fuel tanks were partially filled with fuel. The pilot reported that no moisture was observed during the preflight of the aircraft, and that the engine run-up was normal. After departure and landing gear retraction, the right engine lost power. The pilot then pushed all engine power controls forward, and verified that the engine fuel boost pumps were on and the landing gear retracted prior to making an off-airport forced landing. According to the pilot's written statement, the engine failure occurred after lift-off and prior to obtaining Vyse. Subsequent examination of the four fuel filler cap O-rings revealed signs of deterioration and cracking, which was sufficient to allow water to enter the fuel tanks. The outside air temperature was below freezing the night prior to and the morning of the accident. The aircraft had completed an annual inspection 3 months and 15 hours prior to the accident flight. The right engine was examined following aircraft recovery with no discrepancies noted.

NTSB Probable Cause Narrative

water/ice contamination in the fuel system and/or fuel filters due to failure of the maintenance facility that performed the annual inspection to identify and replace four cracked and deteriorated fuel filler cap O-rings. A factor in this accident was the pilot's failure to identify, and recognize the contamination hazard with, the cracked and deteriorated fuel filler cap O-rings during the preflight of the aircraft.

Event Information

Type of Event Accident
Event Date 10/31/1996
Event Day of the Week Thursday
Time of Event 905
Event Time Zone Mountain Standard Time
Event City SHOW LOW
Event State ARIZONA
Event Country --
Zipcode of the event site 85901
Event Date Year 1996
Event Date Month 10
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport SHOW LOW MUNI
Event Location Nearest Airport ID SOW
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 2
Degrees magnetic from airport 270
Airport Elevation --
Weather Briefing Completeness Not pertinent
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) 10
Air Temperature at event time (in degrees celsius) -3
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 200
Variable Wind Indicator Unknown
Wind Speed (knots) 18
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1489
NTSB Notification Source --
NTSB Notification Date Oct 31 1996 12:00AM
NTSB Notification Time 829
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 10:25AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N1039Q
NTSB Number LAX97LA029
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name Cessna
Aircraft Model 310H
Aircraft Series Identifier 310H
Aircraft Serial Number 310H0039
Certified Max Gross Weight 5100
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 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jul 1 1996 12:00AM
Airframe hours since last inspection 15
Airframe Hours 4193
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name MARTIN STUART REVOCABLE TRUST
Aircraft Owner Street Address 1458 W. EMERALD KEY COURT
Aircraft Owner City GILBERT
Aircraft Owner State AZ
Aircraft Owner Country
Aircraft Owner Zipcode 85233
Operator is an individual? --
Operator Name MARTIN J. STUART
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
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 No
Departure Airport Code SOW
Departure City SHOW LOW
Departure State AZ
Departure Country
Departure Time 900
Departure Time Zone MST
Destination Same as Local Flt --
Destination Airport Code CHD
Destination City CHANDLER
Destination State AZ
Destination Country
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
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 --