N6811N

Substantial
None

MOONEY M20C S/N: 680109

Accident Details

Date
Thursday, March 10, 1994
NTSB Number
CHI94LA101
Location
RICHLAND CENTER, WI
Event ID
20001206X00865
Coordinates
43.329147, -90.379669
Aircraft Damage
Substantial
Highest Injury
None
Fatalities
0
Serious Injuries
0
Minor Injuries
0
Uninjured
2
Total Aboard
2

Probable Cause and Findings

improper use of carburetor heat. Factors related to the accident were carburetor icing conditions, and the sign and fence poles.

Aircraft Information

Registration
Make
MOONEY
Serial Number
680109
Engine Type
Reciprocating
Year Built
1968
Model / ICAO
M20C M20P
Aircraft Type
Fixed Wing Single Engine
No. of Engines
1
Seats
4
FAA Model
M20C

Registered Owner (Current)

Name
VAN KOETSVELD ERNST J
Address
6263 GENTLE LN
City
ALEXANDRIA
State / Zip Code
VA 22310-2260
Country
United States

Analysis

On March 10, 1994, at 1350 central standard time, a Mooney M20C, N6811N, registered to Michael Geyer and flown by a private- instrument rated pilot collided with sign posts, fence posts, and a ditch during a forced landing in Richland Center, Wisconsin, while on a CFR 14 Part 91 business flight. Visual meteorological conditions prevailed and an IFR flight plan was filed. The airplane was substantially damaged. The pilot and passenger were not injured. The flight originated from Milwaukee, Wisconsin, on March 10, 1994, at 1237 cst.

The pilot stated that while en route to St. Paul, Minnesota, just after passing the Lone Rock VOR, a "very sudden, immediate loss of engine power" was experienced. He stated that best glide speed was established, and emergency restart procedures were followed to no avail. Information regarding the nearest airport was requested from the Chicago Air Route Traffic Control Center. The pilot was informed that Richland Center Airport was the closest airport. The pilot stated he headed toward the airport, but realized they could not make it there so he selected a road on which to land. According to the pilot, each wing struck a sign post during the landing and the left wing contacted several metal fence posts. The airplane then veered to the left and came to rest in a ditch.

Post accident inspection of the airplane and engine was conducted by an inspector from the Milwaukee Flight Standards District Office. The inspector reported no deficiencies were found which would have resulted in the loss of power as described.

The temperature and dewpoint reported at Madison, Wisconsin, at 1251 cst were 35 degrees F., and 21 degrees F. respectively. According to icing probability charts, these conditions were favorable for light to moderate carburetor ice at glide or cruise power. The pilot reported to Milwaukee Departure Control during the flight that he was encountering ice pellets and was picking up light rime ice.

Data Source

Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# CHI94LA101