Toledo - Harbor Springs

The pilot reported that during cruise descent the airplane accumulated about 1/2-to 3/4-inch of rime ice between 8,000 and 6,000 feet. During the approach, the pilot noted that a majority of the ice had dissipated off the leading edge of both wings, although there was still trace ice on the aft-portion of the wing deice boots. The pilot maintained an additional 20 knots during final approach due to gusting winds from the north-northwest. He anticipated there would be turbulence caused by the surrounding topography and the buildings on the north side of the airport. While on short final for runway 28, the pilot maintained approximately 121 knots indicated airspeed (KIAS) and selected flaps 30-degrees. He used differential engine power to assist staying on the extended centerline until the airplane crossed the runway threshold. After crossing the threshold, the pilot began a landing flare and the airspeed slowed toward red line (92 KIAS). Shortly before touchdown, the airplane "abruptly pitched up and was pushed over to the left" and flight control inputs were "only marginally effective" in keeping the wings level. The airplane drifted off the left side of the runway and began a "violent shuddering." According to the pilot, flight control inputs "produced no change in aircraft heading, or altitude." The pilot advanced the engine throttles for a go-around as the left wing impacted the terrain. The airplane cartwheeled and subsequently caught fire. No pre-impact anomalies were noted with the airplane's flight control systems and deice control valves during a postaccident examination. No ice shapes were located on the ground leading up to the main wreckage. The reported surface wind was approximately 4 knots from the north-northwest.

Flight / Schedule

Toledo - Harbor Springs

Registration

N425TN

MSN

425-0196

Year of Manufacture

1984

Date

January 12, 2007 at 06:30 PM

Type

CRASH

Flight Type

Private

Flight Phase

Landing (descent or approach)

Crash Site

Airport (less than 10 km from airport)

Crash Location

Harbor Springs Michigan

Region

North America • United States of America

Coordinates

45.4317°, -84.9920°

Crash Cause

Human factor

Narrative Report

On January 12, 2007 at 06:30 PM, Toledo - Harbor Springs experienced a crash involving Cessna 425 Conquest, operated by Lyden Air Company, with the event recorded near Harbor Springs Michigan.

The flight was categorized as private and the reported phase was landing (descent or approach) at a airport (less than 10 km from airport) crash site.

3 people were known to be on board, 0 fatalities were recorded, 3 survivors were identified or estimated. This corresponds to an estimated fatality rate of 0.0%.

Crew on board: 1, crew fatalities: 0, passengers on board: 2, passenger fatalities: 0, other fatalities: 0.

The listed crash cause is human factor. The pilot reported that during cruise descent the airplane accumulated about 1/2-to 3/4-inch of rime ice between 8,000 and 6,000 feet. During the approach, the pilot noted that a majority of the ice had dissipated off the leading edge of both wings, although there was still trace ice on the aft-portion of the wing deice boots. The pilot maintained an additional 20 knots during final approach due to gusting winds from the north-northwest. He anticipated there would be turbulence caused by the surrounding topography and the buildings on the north side of the airport. While on short final for runway 28, the pilot maintained approximately 121 knots indicated airspeed (KIAS) and selected flaps 30-degrees. He used differential engine power to assist staying on the extended centerline until the airplane crossed the runway threshold. After crossing the threshold, the pilot began a landing flare and the airspeed slowed toward red line (92 KIAS). Shortly before touchdown, the airplane "abruptly pitched up and was pushed over to the left" and flight control inputs were "only marginally effective" in keeping the wings level. The airplane drifted off the left side of the runway and began a "violent shuddering." According to the pilot, flight control inputs "produced no change in aircraft heading, or altitude." The pilot advanced the engine throttles for a go-around as the left wing impacted the terrain. The airplane cartwheeled and subsequently caught fire. No pre-impact anomalies were noted with the airplane's flight control systems and deice control valves during a postaccident examination. No ice shapes were located on the ground leading up to the main wreckage. The reported surface wind was approximately 4 knots from the north-northwest.

Aircraft reference details include registration N425TN, MSN 425-0196, year of manufacture 1984.

Geospatial coordinates for this crash are approximately 45.4317°, -84.9920°.

Fatalities

Total

0

Crew

0

Passengers

0

Other

0

Crash Summary

The pilot reported that during cruise descent the airplane accumulated about 1/2-to 3/4-inch of rime ice between 8,000 and 6,000 feet. During the approach, the pilot noted that a majority of the ice had dissipated off the leading edge of both wings, although there was still trace ice on the aft-portion of the wing deice boots. The pilot maintained an additional 20 knots during final approach due to gusting winds from the north-northwest. He anticipated there would be turbulence caused by the surrounding topography and the buildings on the north side of the airport. While on short final for runway 28, the pilot maintained approximately 121 knots indicated airspeed (KIAS) and selected flaps 30-degrees. He used differential engine power to assist staying on the extended centerline until the airplane crossed the runway threshold. After crossing the threshold, the pilot began a landing flare and the airspeed slowed toward red line (92 KIAS). Shortly before touchdown, the airplane "abruptly pitched up and was pushed over to the left" and flight control inputs were "only marginally effective" in keeping the wings level. The airplane drifted off the left side of the runway and began a "violent shuddering." According to the pilot, flight control inputs "produced no change in aircraft heading, or altitude." The pilot advanced the engine throttles for a go-around as the left wing impacted the terrain. The airplane cartwheeled and subsequently caught fire. No pre-impact anomalies were noted with the airplane's flight control systems and deice control valves during a postaccident examination. No ice shapes were located on the ground leading up to the main wreckage. The reported surface wind was approximately 4 knots from the north-northwest.

Cause: Human factor

Occupants & Outcome

Crew On Board

1

Passengers On Board

2

Estimated Survivors

3

Fatality Rate

0.0%

Known people on board: 3

Operational Details

Schedule / Flight

Toledo - Harbor Springs

Flight Type

Private

Flight Phase

Landing (descent or approach)

Crash Site

Airport (less than 10 km from airport)

Region / Country

North America • United States of America

Aircraft Details

Registration

N425TN

MSN

425-0196

Year of Manufacture

1984