Aircraft Accident/Incident Report

Medford, Minnesota 55049
Monday, August 26, 1996 10:32 CDT

NTSB Narrative Summary Released at Completion of Accident

While flying in instrument meteorological conditions (IMC), the pilot reported to approach control that the airplane had suffered a loss of its vacuum system. He requested a lower altitude in an attempt to descend into visual meteorological conditions (VMC). The pilot reported being unable to locate visual conditions. The airplane departed controlled flight and impacted the terrain. The primary vacuum pump was found inoperative with fractures of the rotor and vanes. The standby system was found not capable of operation due to a restriction in the system from the migration of sealing material or a gasket, blocking a hole drilled for the installation and operation of the standby system.

NTSB Probable Cause Narrative

failure of the pilot to maintain control of the airplane, due to spatial disorientation. Factors relating to the accident were: failure of the (primary) vacuum system and a restriction in the (standby) vacuum system.

Event Information

Type of Event Accident
Event Date 8/26/1996
Event Day of the Week Monday
Time of Event 1032
Event Time Zone Central Daylight Time
Event City MEDFORD
Event State MINNESOTA
Event Country --
Zipcode of the event site 55049
Event Date Year 1996
Event Date Month 8
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 955 Central Daylight Time
Direction of event from weather observation facility (degrees) 340
Weather Observation Facility ID KFB
Elevation of weather observation facility 1060
Distance of event from weather observation facility (units?) 10
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 600
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Overcast
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) 17
Dew Point at event time (in degress fahrenheit) 17
Wind Direction (degrees magnetic) 300
Variable Wind Indicator Unknown
Wind Speed (knots) 6
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 Fatal
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 1628
NTSB Notification Source --
NTSB Notification Date Aug 26 1996 12:00AM
NTSB Notification Time 1130
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 10:16AM
User who most recently changed record dbo
Basic weather conditions Instrument Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N7133C
NTSB Number CHI96FA314
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name Piper
Aircraft Model PA-32R-300
Aircraft Series Identifier PA-32R-300
Aircraft Serial Number 36R-7680039
Certified Max Gross Weight 3600
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 Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Nov 13 1995 12:00AM
Airframe hours since last inspection 133
Airframe Hours 2543
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name X-CELL, INC.
Aircraft Owner Street Address 3002 27TH AVE.
Aircraft Owner City MOLINE
Aircraft Owner State IL
Aircraft Owner Country
Aircraft Owner Zipcode 61265
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) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code FCM
Departure City EDEN PRAIRIE
Departure State MN
Departure Country
Departure Time 1005
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code DVN
Destination City DAVENPORT
Destination State IA
Destination Country
Specific Phase of Flight Descent - uncontrolled
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 --