Aircraft Accident/Incident Report

Mankato, Minnesota 56001
Sunday, December 12, 1999 18:00 CST

NTSB Narrative Summary Released at Completion of Accident

The airplane collided with trees while landing at night. An on scene examination of the aircraft found no anomalies that could be associated with a preexisting condition. In his written statement, the pilot listed no mechanical malfunction. The pilot stated that he '... was experiencing the classic optical illusion of thinking I was closer to the approach end of the runway, than I actually was.' The pilot stated that the accident could have been prevented by receiving additional night dual instruction and a visual approach slope indicator (VASI) on runway 22. According to the Airport/Facility Directory (A/FD), runway 22 has a VASI system that is activated using the aircraft radio tuned to the airport common traffic advisory frequency (CTAF). According to a statement from the airport manager, three flight instructors that operated aircraft during the late afternoon and early evening on the day of the accident were contacted. All three flight instructors indicated that the VASI lights were operational at the time of their flights. On the day following the accident, the airport maintenance manager conducted a daily inspection and determined that the VASI system was operational and in working order.

NTSB Probable Cause Narrative

the pilots failure to maintain a proper glidepath. Factors were the dark night and the pilots lack of recent night flying experience.

Event Information

Type of Event Accident
Event Date 12/12/1999
Event Day of the Week Sunday
Time of Event 1800
Event Time Zone Central Standard Time
Event City MANKATO
Event State MINNESOTA
Event Country --
Zipcode of the event site 56001
Event Date Year 1999
Event Date Month 12
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 1020
Weather Briefing Completeness Not pertinent
Investigator's weather source Pilot
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Night/Dark
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) 10
Air Temperature at event time (in degrees celsius) 4
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 220
Variable Wind Indicator Unknown
Wind Speed (knots) 10
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
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 Minor
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 2
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 1577
NTSB Notification Source --
NTSB Notification Date Dec 12 1999 12:00AM
NTSB Notification Time 2143
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Jan 10 2001 9:46AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N41910
NTSB Number CHI00LA041
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Piper
Aircraft Model PA-28-180
Aircraft Series Identifier PA-28-180
Aircraft Serial Number 28-7405150
Certified Max Gross Weight 2450
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 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Oct 6 1999 12:00AM
Airframe hours since last inspection 21
Airframe Hours 1910
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name BOSE GARAGE, INC
Aircraft Owner Street Address RR 1 PO BOX 132A
Aircraft Owner City ORLEANS
Aircraft Owner State NE
Aircraft Owner Country
Aircraft Owner Zipcode 68966
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 67NE
Departure City ORLEANS
Departure State NE
Departure Country
Departure Time 1455
Departure Time Zone CST
Destination Same as Local Flt crash at destination city
Destination Airport Code MKT
Destination City
Destination State
Destination Country
Specific Phase of Flight Approach
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 10 2001 12:27PM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 22
Runway Length 3999
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --