Hall LANCAIR IV-P N707SH

Summary

On 31 May 2004 at about 18:00 local time, a Hall LANCAIR IV-P registered N707SH was involved in an accident near Vermontville, Michigan, United States. 3 people were on board and 3 died. The aircraft was destroyed. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

31 May 2004 at 18:00

Classification

Accident

Location

Vermontville, Michigan, United States

Coordinates

42.6300, -85.0606

Aircraft

Hall LANCAIR IV-P

Registration

N707SH

Category

Airplane

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Business

Phase of flight

Not recorded

Route

Ypsilanti → Billings

Aircraft damage

Destroyed

Weather

IMC

Light

Day

NTSB number

CHI04LA129

3 people died.

The failure of Air Route Traffic Control Center controllers to provide adverse weather avoidance assistance as required by FAA directives, which led to the airplane's encounter with a thunderstorm and subsequent loss of control. Contributing to the accident was the pilot's decision to conduct flight into an area of known thunderstorms. "THIS CASE WAS MODIFIED 11/16/2006."

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

Read the full NTSB narrative

The airplane flew into a thunderstorm during cruise flight and subsequently entered a flat spin until impact with terrain. The airplane had been given a heading to avoid the adverse weather by Lansing approach control. During transfer of control between Lansing approach and Cleveland center, the Cleveland controller was advised that the aircraft had been given a heading to avoid the adverse weather. After the handoff, the Cleveland controller instructed the pilot to proceed direct to an en-route fix when able, but did not provide any information about radar-observed weather ahead of the aircraft. The Chicago center controller who next handled the airplane was briefed that the airplane was proceeding direct to the en-route fix and had not requested any weather deviations. About seven minutes after the handoff between Cleveland and Chicago centers, the pilot transmitted, "Center this is uh 707SH what do you show us in up here?" Aircraft and weather radar data showed the accident airplane flew into an area of level six precipitation (extreme weather) prior to a rapid loss of altitude. Several witnesses reported first hearing the sound of a revving aircraft engine before seeing the airplane descending rapidly in a spiraling descent. A pilot-rated witness reported that the airplane was in a "flat spin" before impacting the terrain. Before the pilot departed on the accident flight, he was given a weather briefing that indicated his route of flight would take him into areas of thunderstorms, moderate turbulence, and icing. According to available pilot flight records, the pilot did not have a current biennial flight review and was not instrument current, as required by federal aviation regulations. No pre-impact anomalies were found with the airplane during the post-accident inspection. "THIS CASE WAS MODIFIED 11/16/2006."

Quoted verbatim from the NTSB record.