Aircraft Accident/Incident Report

Arlington, Wyoming 82080
Monday, July 12, 1993 12:53 MDT

NTSB Narrative Summary Released at Completion of Accident

THE PILOT DEPARTED LARAMIE, WYOMING, AFTER TOPPING OFF THE AIRCRAFT FUEL TANKS. WHILE AT CRUISE ALTITUDE, THE ENGINE LOST POWER. THE PILOT MADE A FORCED LANDING AND REPORTED THAT HE 'WAS A LITTLE HIGH CAUSING INITIAL IMPACT AT NEAR STALL SPEED, REMOVING THE GEAR.' SUBSEQUENT EXAMINATION OF THE FUEL SYSTEM REVEALED CONTAMINATED WATER IN THE FUEL SELECTOR BOWL WITH THE DRAIN LEVER RUSTED IN THE 'CLOSED' POSITION. ADDITIONALLY, THE FUEL PUMP FILTER WAS COVERED WITH A RUST COLORED SUBSTANCE. AIRWORTHINESS DIRECTIVE 77-12-01 REQUIRES THAT THE FUEL SELECTOR VALVE BE CHECKED EVERY 50 HOURS SO AS TO 'PREVENT A FUEL SYSTEM MALFUNCTION AND A POSSIBLE POWER INTERRUPTION.' THE LAST RECORD OF SUCH AN INSPECTION ON THE AIRCRAFT WAS CONDUCTED 64 HOURS PREVIOUSLY (15 MONTHS PRIOR TO THE ACCIDENT). LIKEWISE, THE PIPER CHEROKEE SIX SERVICE MANUAL DESCRIBES PROCEDURES FOR REMOVING, DRAINING, AND CLEANING THE FUEL SELECTOR STRAINER BOWL AT LEAST EVERY 90 DAYS.

NTSB Probable Cause Narrative

FUEL CONTAMINATION, DIRECTIVES NOT FOLLOWED BY THE PILOT IN COMMAND, AND HIS PREMATURE FLARE.

Event Information

Type of Event Accident
Event Date 7/12/1993
Event Day of the Week Monday
Time of Event 1253
Event Time Zone Mountain Daylight Time
Event City ARLINGTON
Event State WYOMING
Event Country --
Zipcode of the event site 82080
Event Date Year 1993
Event Date Month 7
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 Weather Observation Facility
Time of the weather observation 1250 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 110
Weather Observation Facility ID LAR
Elevation of weather observation facility 7278
Distance of event from weather observation facility (units?) 17
Time Zone of the weather observation MDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 5000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 50
Air Temperature at event time (in degrees celsius) 24
Dew Point at event time (in degress fahrenheit) 1
Wind Direction (degrees magnetic) 220
Variable Wind Indicator Unknown
Wind Speed (knots) 12
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
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 Serious
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 --
Injury Total Serious 1
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 1881
NTSB Notification Source --
NTSB Notification Date Jul 12 1993 12:00AM
NTSB Notification Time 1327
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 11 2000 1:29PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N3774W
NTSB Number SEA93LA152
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed VFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name PIPER
Aircraft Model PA-32-260
Aircraft Series Identifier PA-32-260
Aircraft Serial Number 32-696
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 6
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Mar 30 1992 12:00AM
Airframe hours since last inspection 64
Airframe Hours 4741
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name VIGNAROLI, ROBERT R.
Aircraft Owner Street Address PO BOX 2830
Aircraft Owner City JACKSON
Aircraft Owner State WY
Aircraft Owner Country
Aircraft Owner Zipcode 83001
Operator is an individual? --
Operator Name VIGNAROLI, ROBERT R.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address PO BOX 2830
Operator City JACKSON
Operator State WY
Operator Country
Operator Zip code 83001
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 LAR
Departure City LARAMIE
Departure State WY
Departure Country
Departure Time 1240
Departure Time Zone MDT
Destination Same as Local Flt --
Destination Airport Code JAC
Destination City JACKSON
Destination State WY
Destination Country
Specific Phase of Flight Cruise
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 --