Cirrus SR22 N383GM

Summary

On 9 January 2015 at about 23:15 local time, a Cirrus SR22 registered N383GM was involved in an accident near Tooele, Utah, United States. One person was on board and one died. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

9 January 2015 at 23:15

Classification

Accident

Location

Tooele, Utah, United States

Coordinates

40.7764, -112.4925

Aircraft

Cirrus SR22

Registration

N383GM

Category

Airplane

Year built

2003

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Salt Lake City → Unknown

Aircraft damage

Substantial

Weather

Unk

Light

Day

NTSB number

WPR15FA082

1 person died.

The non-instrument rated pilot’s decision to depart into low visibility conditions, which resulted in spatial disorientation and a loss of control. Contributing to the accident was the pilot’s impaired performance due to his use of the sedating antihistamine, diphenhydramine.

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

Read the full NTSB narrative

The noninstrument-rated private pilot departed during the late afternoon and flew over the southern portion of the Great Salt Lake. According to data recovered from the airplane's avionics system, which did not capture altitude, the duration of the flight was about 9 minutes. During the final minute of the flight, the airplane conducted a gradual left turn at an engine power setting of about 2,200 rpm. Shortly thereafter, the airplane impacted the lake. Postaccident examination of the airplane revealed no evidence of mechanical malfunctions or failures that would have precluded normal operation. Local meteorological observations indicated that restricted visibility and fog were forecast throughout the area about the time of the accident. It is likely that the pilot encountered these conditions inflight and lost visual reference to the ground and/or horizon. Given the pilot's lack of an instrument rating and of recent instrument flight experience, the loss of visual reference likely resulted in spatial disorientation. Toxicological testing on the pilot revealed the presence of bupropion, an antidepressant; hydrocodone, an opiod analgesic; and diphenhydramine, a sedating antihistamine. The investigation was unable to determine if the use of bupropion or the cognitive effects of any underlying depression contributed to the accident. Because the hydrocodone was found in the urine but not the blood, it no longer caused systemic effects and played no role in the accident. However, it is likely that the effects of diphenhydramine impaired the pilot's cognitive and psychomotor performance at the time of the accident, and contributed to his spatial disorientation.

Quoted verbatim from the NTSB record.