Beechcraft BE-58 N12AZ

Summary

On 4 February 2005 at about 14:20 local time, a Beechcraft BE-58 registered N12AZ was involved in an accident near Niles, Michigan, United States. 4 people were on board and 4 died. The aircraft was destroyed. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

4 February 2005 at 14:20

Classification

Accident

Location

Niles, Michigan, United States

Coordinates

41.9386, -86.2239

Aircraft

Beechcraft BE-58

Registration

N12AZ

Category

Airplane

Engines

2

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Business

Phase of flight

Not recorded

Route

Sheboygan → Lebanon

Aircraft damage

Destroyed

Weather

IMC

Light

Day

NTSB number

CHI05FA063

4 people died.

The steep nose down descent from cruise for undetermined reasons and the subsequent collision with terrain in a steep nose down attitude.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

The twin-engine airplane was destroyed when it departed from cruise flight at 7,000 feet mean sea level (msl) in visual meteorological conditions and impacted the terrain in a wooded area. The fight was on an instrument flight rules (IFR) flight plan. The airplane departed at 0838 eastern standard time. Radar track data indicated that altitude remained constant at 7,000 feet msl until 0919:42. At 0919:47, the radar data indicated the airplane was at 6,900 feet msl. At 0919:52, the radar data indicated the airplane was at 5,800 feet msl. At 0919:57, the radar data indicated the airplane was at 5,300 feet msl. At 0920:02, the radar data indicated the airplane was at 3,400 feet msl. No further radar contact with the airplane was recorded. The radar track data indicated that the airplane's heading and altitude went almost "straight down." Radar track data indicated the airplane impacted the terrain at about 300 knots true airspeed with about a maximum descent rate of 25,000-feet per minute. The descent angle of the airplane was about 70-80 degrees nose down. The main wreckage was localized at the impact crater. The engines, the cockpit and cabin, both wings, and the empennage were found in the impact crater. The cockpit was fragmented and destroyed by impact forces. Flight control continuity could not be established due to the destructive impact forces. All flight control cable breaks were consistent with overload fractures. The inspection of the airframe revealed no preexisting anomalies. Engine continuity and compression could not be established for the left and right engines due to impact forces. The engine inspections revealed no preexisting anomalies. The pilot had a total of 11,409 flight hours of which 4,589 hours were in multi-engine aircraft. The airplane seated six including the pilot's seat. The cabin was configured in "club" seating with the middle seats, located behind the pilot's seat, facing aft. The airplane was equipped with a "throw-over" control yoke. The medical examiner reported that the pilot was sitting in the left front pilot's seat, and two passengers were sitting in the second row of seats facing aft, and the other passenger was sitting in the third row of seats facing forward. Due to impact forces, the autopsies and toxicological examinations provided limited medical information.

Quoted verbatim from the NTSB record.