Avra Valley Airport
Aircraft Accident/Incident Report

Marana, Arizona 85653
Wednesday, August 30, 1995 5:53 MST

NTSB Narrative Summary Released at Completion of Accident

THE PILOT WAS BEGINNING A FLIGHT TO TRANSPORT MARIJUANA IN DUFFLE BAGS. SHORTLY AFTER TAKEOFF THE RIGHT PROPELLER BEGAN TO SEPARATE FROM ITS MOUNTING FLANGE. THE PILOT TURNED THE AIRPLANE TOWARD THE AIRPORT, FEATHERED THE WRONG PROPELLER AND BEGAN TO THROW OUT THE DUFFLE BAGS. THE AIRPLANE COLLIDED WITH A TREE, WIRES, AND A PRIVATELY OWNED RESIDENCE. TWO PERSONS IN THE RESIDENCE SUSTAINED MINOR INJURIES. THE POST ACCIDENT WRECKAGE EXAMINATION REVEALED THAT THE PROPELLER MOUNTING STUDS SAFETY WIRE WAS BROKEN AND THREE OF THE SIX PROPELLER MOUNTING STUDS WERE BROKEN. THE REMAINING MOUNTING STUDS HAD BACKED OFF. THE RIGHT ENGINE OIL SYSTEM CONTAINED EXTENSIVE METAL PARTICLES AND THE PROPELLER GOVERNOR OIL SCREEN WAS ALTERED TO ALLOW UNFILTERED OIL FLOW.

NTSB Probable Cause Narrative

the pilot's poor installation of the propeller which allowed the propeller to become loose, and the pilot's improper emergency procedure by feathering the wrong propeller.

Event Information

Type of Event Accident
Event Date 8/30/1995
Event Day of the Week Wednesday
Time of Event 553
Event Time Zone Mountain Standard Time
Event City MARANA
Event State ARIZONA
Event Country --
Zipcode of the event site 85653
Event Date Year 1995
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport AVRA VALLEY
Event Location Nearest Airport ID E14
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 3
Degrees magnetic from airport 330
Airport Elevation 2031
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 553 Mountain Standard Time
Direction of event from weather observation facility (degrees) 135
Weather Observation Facility ID TUS
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 31
Time Zone of the weather observation MST
Lighting Conditions Dawn
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) 30
Air Temperature at event time (in degrees celsius) 24
Dew Point at event time (in degress fahrenheit) 17
Wind Direction (degrees magnetic) 160
Variable Wind Indicator Unknown
Wind Speed (knots) 6
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 2
On Ground, Serious Injuries 0
Injury Total Fatal 1
Injury Total Minor 2
Injury Total None --
Injury Total Serious --
Injury Total All 3
Investigating Agency NTSB
NTSB Docket Number (internal use) 1383
NTSB Notification Source --
NTSB Notification Date Aug 30 1995 12:00AM
NTSB Notification Time 708
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 7 2000 4:31PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N7156T
NTSB Number LAX95LA314
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 Ground
Aircraft Manufacturer's Full Name PIPER
Aircraft Model PA-23-250
Aircraft Series Identifier PA-23-250
Aircraft Serial Number 27-3601
Certified Max Gross Weight 5200
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 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Feb 1 1995 12:00AM
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name RICHARD A. FENIMORE
Aircraft Owner Street Address STATE ROUTE 100, BOX 806
Aircraft Owner City FLAGLER BEACH
Aircraft Owner State FL
Aircraft Owner Country
Aircraft Owner Zipcode 32136
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) Other Work Use
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code E14
Departure City
Departure State AZ
Departure Country
Departure Time 551
Departure Time Zone MST
Destination Same as Local Flt --
Destination Airport Code
Destination City UNKNOWN
Destination State
Destination Country
Specific Phase of Flight Climb
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 --