Little Falls-Morrison County Airport
Aircraft Accident/Incident Report

Browerville, Minnesota 56438
Tuesady, October 23, 2007 22:12 CDT

NTSB Narrative Summary Released at Completion of Accident

The accident flight was the third of a three-leg dual instructional night cross-country flight. The airplane was established in normal cruise flight at 4,500 feet mean sea level (msl) when the airplane abruptly departed controlled flight and impacted a bog. The bog was about 15 to 20 feet deep, with a thin layer of vegetation floating on the surface. The airplane came to rest inverted, and damage to the airframe was consistent with an inverted impact to the surface of the bog. Data recovered from the airplane's flight display system indicated that the airplane was in stable flight on a 320-degree magnetic heading, at 4,500 feet msl, and approximately 160 knots true airspeed prior to the accident, when it abruptly departed from controlled flight. The airplane rolled approximately 20 degrees left wing down, yawed to the left about 30 degrees, and simultaneously pitched nose-down about 40 degrees. It then reversed and immediately entered a descending, right roll for the duration of the flight. The airplane impacted the bog within 30 seconds of the upset. The post accident examination noted that the left half of the horizontal stabilator was bent upward approximately 90 degrees, inconsistent with the damage to the remainder of the airframe. This damage was consistent with the initial left yaw and nose down pitch recorded during the upset. In addition, a depression and tear were observed on the upper wing skin near the left wing tip. Microscopic examination and DNA testing of material on the inside surface of the wing skin was identified as remains of a Canada goose. The natural history of this species was consistent with the location, time, and date of the accident.

NTSB Probable Cause Narrative

An in-flight collision with at least one Canada goose, and the resulting damage to the left stabilator that caused the airplane to become uncontrollable. Contributing to the accident was the night lighting condition, which precluded any possibility of the flight crew seeing the bird(s) prior to impact.

Event Information

Type of Event Accident
Event Date 10/23/2007
Event Day of the Week Tuesday
Time of Event 2212
Event Time Zone Central Daylight Time
Event City Browerville
Event State MINNESOTA
Event Country --
Zipcode of the event site 56438
Event Date Year 2007
Event Date Month 10
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 460933N
Event Location Longitude 0943928W
Event Location Airport Little Falls-Morrison County
Event Location Nearest Airport ID LXL
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 18
Degrees magnetic from airport --
Airport Elevation 1123
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 2215 Central Daylight Time
Direction of event from weather observation facility (degrees) 150
Weather Observation Facility ID LXL
Elevation of weather observation facility 1122
Distance of event from weather observation facility (units?) 18
Time Zone of the weather observation CDT
Lighting Conditions Night
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 7
Dew Point at event time (in degress fahrenheit) 0
Wind Direction (degrees magnetic) 320
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 6
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.09
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal 2
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 24764
NTSB Notification Source FAA-AGL ROC
NTSB Notification Date Oct 24 2007 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Dec 22 2008 12:09PM
User who most recently changed record lema
Basic weather conditions Visual Meteorological Cond
FAA District Office FAA-Minneapolis FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N327ND
NTSB Number CHI08FA027
Missing Aircraft Indicator Y
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed VFR
Flight plan Was Activated? Yes
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name PIPER
Aircraft Model PA-44-180
Aircraft Series Identifier --
Aircraft Serial Number 4496174
Certified Max Gross Weight 3816
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 4
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection AAIP
Date of Last Inspection Oct 1 2007 12:00AM
Airframe hours since last inspection 51
Airframe Hours 1852
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Name UNIVERSITY OF NORTH DAKOTA
Aircraft Owner Street Address PO BOX 9007
Aircraft Owner City GRAND FORKS
Aircraft Owner State ND
Aircraft Owner Country USA
Aircraft Owner Zipcode 58202-9007
Operator is an individual? No
Operator Name UNIVERSITY OF NORTH DAKOTA
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address PO BOX 9007
Operator City GRAND FORKS
Operator State ND
Operator Country USA
Operator Zip code 58202-9007
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
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) Instructional
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code STP
Departure City St Paul
Departure State MN
Departure Country USA
Departure Time 2115
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code GFK
Destination City Grand Forks
Destination State ND
Destination Country USA
Specific Phase of Flight Cruise
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Nov 17 2008 12:33PM
User who most recently changed record sort
Since inspection or accident Time of Accident
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --