Cessna 150M N63262

Summary

On 12 November 2001 at about 21:50 local time, a Cessna 150M registered N63262, operated by Chicago Business Air Center, was involved in an accident near Dyer, Indiana, United States. 2 people were on board and 2 died. The aircraft was destroyed. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

12 November 2001 at 21:50

Classification

Accident

Location

Dyer, Indiana, United States

Coordinates

41.4106, -87.5172

Aircraft

Cessna 150M

Registration

N63262

Category

Airplane

Engines

1

Operator

Chicago Business Air Center

Operating rule

Part 91: General Aviation

Purpose of flight

Instructional

Phase of flight

Not recorded

Route

Lansing → Lansing

Aircraft damage

Destroyed

Weather

VMC

Light

Day

NTSB number

CHI02FA025

2 people died.

The failure of the flight crew to maintain adequate airspeed, resulting in an inadvertent stall/spin and the flight instructor's inadequate supervision of the flight, his impairment due to the use of over-the-counter medication is a contributing factor.

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

Read the full NTSB narrative

During an instructional flight the airplane entered an inadvertent spin and subsequently impacted the terrain. The plotted aircraft radar track data showed the airplane performing a maneuver consistent with a clearing turn prior to the airplane decelerating at a constant altitude. The plotted data then shows the airplane reversing course and entering a spiraling descent. The average descent rate for the last 50.82 seconds of aircraft radar track data was 2,125 feet/minute. No anomalies were found with the accident airplane that could be associated with a pre-impact condition. Diphenhydramine (trade name Benadryl), an over-the-counter antihistamine with sedative effects, was detected in the blood of the certified flight instructor (CFI) at a level consistent with that found about 2-3 hours following ingestion of a single maximum over-the-counter dose. The effects of over-the-counter antihistamines, including diphenhydramine, was evaluated in a medical study, which concluded that a normal over-the-counter dose of diphenhydramine adversely affected performance more than a 0.1% blood alcohol concentration. The study further concluded that there was no correlation between drowsiness and impairment.

Quoted verbatim from the NTSB record.