South St. Paul Airport
Aircraft Accident/Incident Report

South St. Paul, Minnesota 55075
Sunday, March 31, 2002 10:05 CST

NTSB Narrative Summary Released at Completion of Accident

The airplane sustained substantial damage during a forced landing to a river after it experienced a complete loss of engine power after an engine fire in cruise flight. The pilot reported the preflight and takeoff were normal. He leveled off about 1,100 feet agl in order to stay below Class B airspace. He activated the standby vacuum pump and noted that it was operating properly. About 1-2 seconds after activating the vacuum pump, the alternator annunciator light came on. The two passengers smelled something burning about 2 seconds after the alternator annunciator light came on. The pilot reported that about 2 seconds later the engine lost power abruptly, without any roughness or surging. He decided to make a forced landing to the river. The examination of the engine compartment revealed an area of heat and fire damage near the top of the engine. Bare wires on the P-leads were found in the area of the heat damage. When the magnetos were checked, it was observed that the P-leads were grounded and no electrical current was getting to the magnetos. Further examination of the engine revealed that a B-nut fuel line connector on the fuel line that came from the engine driven fuel pump through the engine baffling was loose. The loose fuel connector was adjacent to the burned area where the P-leads were burned through. The engine logbook indicated that prior to the accident flight, the oil and oil filter had been changed. The standby vacuum pump was also replaced. The fuel line that was found with the loose B-nut was located directly above the standby vacuum pump.

NTSB Probable Cause Narrative

A loss of engine power due to an electrical short of the P-lead, and loose fuel line connection as a result of improper maintenance.

Event Information

Type of Event Accident
Event Date 3/31/2002
Event Day of the Week Sunday
Time of Event 1005
Event Time Zone Central Standard Time
Event City South St. Paul
Event State MINNESOTA
Event Country --
Zipcode of the event site 55075
Event Date Year 2002
Event Date Month 3
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport South St. Paul
Event Location Nearest Airport ID SGS
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 4
Degrees magnetic from airport 180
Airport Elevation 780
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1056 Central Standard Time
Direction of event from weather observation facility (degrees) 360
Weather Observation Facility ID SGS
Elevation of weather observation facility 780
Distance of event from weather observation facility (units?) 4
Time Zone of the weather observation CST
Lighting Conditions Day
Lowest Ceiling Height 3400
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions --
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 1
Dew Point at event time (in degress fahrenheit) -8
Wind Direction (degrees magnetic) 280
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 9
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 17
Altimeter Setting at event time (in. Hg) 30.01
Density Altitude (feet) -795
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 3
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 13298
NTSB Notification Source FAA
NTSB Notification Date Mar 31 2002 12:00AM
NTSB Notification Time 1151
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record May 13 2003 12:26PM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office FAA-Minneapolis FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N9103Q
NTSB Number CHI02LA099
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? Yes
Damage Substantial
Aircraft Fire In-flight
Aircraft Explosion None
Aircraft Manufacturer's Full Name Piper
Aircraft Model PA-46-310P
Aircraft Series Identifier --
Aircraft Serial Number 4608027
Certified Max Gross Weight 4200
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 Mar 7 2002 12:00AM
Airframe hours since last inspection 36.6
Airframe Hours 2872
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Warren Mack
Aircraft Owner Street Address 2539 Thomas Ave. S.
Aircraft Owner City Minneapolis
Aircraft Owner State MN
Aircraft Owner Country USA
Aircraft Owner Zipcode 55405
Operator is an individual? No
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? --
Certified for Part 133 or 137 Operation --
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 SGS
Departure City South St. Paul
Departure State MN
Departure Country USA
Departure Time 1000
Departure Time Zone CST
Destination Same as Local Flt --
Destination Airport Code SLB
Destination City Storm Lake
Destination State IA
Destination Country USA
Specific Phase of Flight Climb
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Mar 20 2003 10:32AM
User who most recently changed record SULP
Since inspection or accident Time of Accident
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --