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N462SR accident description

Colorado map... Colorado list
Crash location 39.410000°N, 107.210000°W
Reported location is a long distance from the NTSB's reported nearest city. This often means that the location has a typo, or is incorrect.
Nearest city Glenwood Springs, CO
39.550538°N, 107.324776°W
11.5 miles away
Tail number N462SR
Accident date 15 Sep 2017
Aircraft type Cirrus Design Corp SR22
Additional details: None

NTSB Factual Report

HISTORY OF FLIGHT

On September 15, 2017, about 2010 mountain daylight time, a Cirrus SR22 airplane, N462SR, impacted trees and mountainous terrain while maneuvering near Glenwood Springs, Colorado. The non-instrument-rated private pilot and three passengers were fatally injured, and the airplane was destroyed. The airplane was owned by Lind's Plumbing and Heating, Inc., Fort Collins, Colorado, and was being operated by the pilot under the provisions of Title 14 Code of Federal Regulations (CFR) Part 91. Night instrument meteorological conditions prevailed at the time of the accident, and a visual flight rules (VFR) flight plan was filed for the personal cross-country flight, which from Fort Collins-Loveland Municipal Airport (FNL), Fort Collins/Loveland, Colorado, about 1920, and was destined for Canyonlands Field Airport (CNY), Moab, Utah.

According to air traffic control information from the Federal Aviation Administration (FAA), the pilot was receiving VFR flight-following services during the flight. Radar track data indicated that the airplane departed and traveled on a southwesterly heading toward the destination. At 1925, the pilot stated to the controller that he was going to climb the airplane to 15,000 ft mean sea level (msl) to "get over the mountains and then back down." At 1928, the airplane turned to a southwesterly direct heading to CNY at an indicated altitude about 10,700 ft msl. By 1932, the airplane had climbed to 13,200 ft and stopped climbing. From 1940 to 2000, radar data showed the airplane on a southwest heading with a series of altitude changes between 13,200 ft and 10,500 ft. At 2004, about 10 miles northeast of Glenwood Springs, Colorado, the airplane turned to the northwest, at an altitude of 11,500 ft msl, and continued northwest for about 12 miles (See Figure 1).

At 2008, a passenger sent a text message to her mother, "Taking the long way around, lots of weather, keep you posted." From 2008:32 to 2009:08, the airplane was in a gradual left turn to the southwest, descending from 11,500 ft to 11,300 ft, then climbing to 11,400 ft. The last recorded radar return was at 2009:32 at an altitude of 11,400 ft msl and about 1/4 mile south of the accident site (See Figure 2).

Later that evening, family members reported the airplane was overdue to CNY, and a search was initiated. Search and rescue personnel located the accident site in mountainous terrain at 1137 the following morning.

PERSONNEL INFORMATION

A review of FAA records revealed that the pilot obtained his private pilot certificate on March 1, 2017. The pilot did not hold an instrument rating; his logbook revealed that he had accumulated 2.4 hours in simulated instrument conditions.

The pilot's logbook contained an entry for a flight on May 2, 2017, that contained the pilot's remarks, "First flight over clouds where I could not see the ground (CO Springs)."

According to the pilot's flight instructor, the pilot had recently completed a mountain flying and high altitude operations course sponsored by the Colorado Pilot's Association. A few days before the accident, the flight instructor spoke to the pilot about the planned flight to CNY. The pilot stated that he did not want to leave later than 1800 and that he would use ForeFlight to obtain weather and flight plan information.

According to family members, the pilot's initial plan was to depart for CNY about 1530; however, a business issue resulted in a delayed departure.

AIRCRAFT INFORMATION

The Cirrus SR22 is a single-engine, low-wing airplane with four seats, fixed tricycle landing gear, and dual yoke controls. The accident airplane, serial number 2495, was manufactured in 2007. It was equipped with a 310-horsepower Teledyne Continental Motors IO-550-N six-cylinder, air-cooled, fuel-injected, horizontally opposed reciprocating engine. The three-blade, constant speed propeller was a Hartzell Model PHC-J3YF-1N. The accident airplane was equipped with a Cirrus Airframe Parachute System (CAPS) designed to recover the airplane from catastrophic emergencies in which normal emergency procedures are ineffective. The airplane was also equipped with NEXRAD/XM satellite weather information.

The airplane was registered to the pilot/owner on February 18, 2016.

METEOROLOGICAL INFORMATION

According to Leidos Flight Service and Direct User Access Terminal Service (DUATS), the accident pilot did not contact Leidos or DUATS for preflight weather information. A search of archived ForeFlight data revealed no record of the accident pilot accessing weather information; however, with no internet access while in flight, ForeFlight is able to access weather information directly from the FAA, leaving no remote record of such access. Therefore, it is possible that the accident pilot was receiving weather updates during the flight. There was no record of the accident pilot receiving or retrieving any other weather information before the accident flight.

The National Weather Service (NWS) Storm Prediction Center (SPC) Day One convective outlook was issued at 1400 and valid through 0600 the following day. The accident site was included in a "TSTM" area, defined as an area where a 10% or higher probability of thunderstorms is forecast during the valid period.

Rifle Garfield County Airport (RIL), Rifle, Colorado, located 20 miles southwest of the accident site, was the closest official weather station to the accident site. It was at an elevation of 5,537 ft and was equipped with an Automated Surface Observing System (ASOS).

At 1953, the RIL ASOS reported wind from 300° at 5 knots, 10 miles visibility or greater, broken ceiling at 7,500 ft agl, overcast skies at 9,500 ft agl, temperature 12° C, dew point temperature 8° C, and an altimeter setting of 30.04 inches of mercury. Remarks, station with a precipitation discriminator, lightning distant south, rain ended at 1948.

At 2053, the RIL ASOS reported variable wind direction at 3 knots, 10 miles visibility or greater, broken ceiling at 6,000 ft agl, overcast skies at 8,000 ft agl, temperature 12° C, dew point temperature 8° C, and an altimeter setting of 30.07 inches of mercury.

Sunlight Peak (5SM), located 16 miles south of the accident site at an elevation of 10,604 ft, was equipped with an Automated Weather Observing System (AWOS).

At 1950, the 5SM AWOS reported wind from 240° at 11 knots with gusts to 23 knots, wind direction variable from 210° to 280°, 1/4 mile visibility, thunderstorm with light rain in the vicinity, overcast ceiling at 200 ft agl, temperature 1° C, dew point temperature 1° C, and an altimeter setting of 30.23 inches of mercury.

At 2008, the 5SM AWOS reported wind from 240° at 11 knots with gusts to 23 knots, wind direction variable from 210° to 280°, 1/2 mile visibility, fog, overcast ceiling at 200 ft agl, temperature 2° C, dew point temperature 1° C, and an altimeter setting of 30.24 inches of mercury.

At 2031, the 5SM AWOS reported wind from 240° at 12 knots with gusts to 24 knots, wind direction variable from 180° to 300°, 1 1/4 miles visibility, light rain, overcast ceiling at 200 ft agl, temperature 2° C, dew point temperature 1° C, and an altimeter setting of 30.24 inches of mercury.

The observations from 5SM indicated low instrument flight rules conditions with gusty winds, light rain, distant lightning, and thunderstorms in the vicinity. RIL reported VFR conditions with rain and distant lightning.

Upper air data near the accident site at 2000 indicated a mostly conditionally unstable layer between the surface (10,548 ft) and 18,000 ft. Rawinsonde Observation program indicated that clouds were likely near the surface through 12,000 ft. A small layer of rime icing conditions was indicated about 12,500 ft.

Infrared data from the Geostationary Operational Environmental Satellite number 16 (GOES-16) was obtained. Satellite imagery surrounding the time of the accident was reviewed and indicated cloud cover over the accident site with the cloud cover moving from southwest to northeast. At 2015, the approximate cloud-top heights were 22,000 ft over the accident site (See Figure 3).

The closest NWS Weather Surveillance Radar-1988, Doppler (WSR-88D), was the Grand Junction, Colorado, radar, located 55 miles southwest of the accident site at an elevation of 9,992 ft. Base reflectivity values between 2007 and 2012 above the accident site corresponded to light precipitation (See Figure 4). No lightning strikes were noted near the accident site at the accident time.

Convective SIGMET advisory 1W was valid for the accident site from 1855 to 2055 and warned of an area of thunderstorms with tops to flight level (FL) 350 with the SIGMET area moving from 250° at 25 kts. Convective SIGMET 10C was valid for the accident site from 1955 to 2155 and warned of an area of thunderstorms with tops to FL370 with the SIGMET area moving from 230° at 20 kts.

AIRMET advisory Tango was issued at 1445 and valid for the accident site at the accident time. The AIRMET forecasted moderate turbulence below 18,000 ft.

The Area Forecast issued at 1345 and valid at the accident time forecast a broken ceiling at 9,000 ft with tops at FL230, isolated thunderstorms with light rain, and thunderstorm tops at FL360. Between 1800 and 2100, conditions were forecast to include a broken cloud ceiling at 8,000 ft with tops at FL270 and isolated thunderstorms with light rain.

The Forecast Icing Potential (FIP) indicated that icing near the accident site would likely be trace to moderate levels at 2000. The FIP did not indicate any Supercooled Large Droplet potential over the accident area at the accident time.

According to the U.S. Naval Observatory, the sunset near the accident site at 1917, and the end of civil twilight was at 1944. The moon was not visible around the accident site at the accident time.

WRECKAGE AND IMPACT INFORMATION

The accident site was located on rocky, tree-covered mountainous terrain about 10,800 ft msl (See Figure 5). The airplane impacted trees and terrain on a measured magnetic heading about 075°. A postimpact fire consumed a portion of the airplane. The initial impact point contained a portion of a propeller blade, fragments of the engine and engine mount, and forward fuselage structure. Several trees were severed at different heights before the initial impact with terrain. Based on the tree impacts, the calculated bank angle at the initial impact was about 34° right wing low.

The airframe and engine were fragmented and distributed in the debris field. The CAPS components were separated from the airframe and distributed in the debris field. The parachute was fully extended in a folded state with the slider at the base of the parachute canopy and entangled in tree branches. The CAPS rocket was located about 200 ft from the initial impact and was not expended.

Due to snow and terrain conditions, the wreckage was recovered on June 28, 2018. On August 29, 2018, the wreckage was examined by the NTSB investigator-in-charge, and representatives from Cirrus Aircraft and Continental Motors. Examination of the wreckage revealed the fuselage, flight control surfaces, instrument panel, engine, and propeller assembly were fragmented and destroyed. Flight control continuity established to rudder and elevators. Aileron control cables separated in multiple locations, and a portion of the forward aileron control cable was not observed. Control cable and pulley damage was consistent with overload failures. A postaccident examination of the airframe and engine revealed no evidence of mechanical malfunctions or failures that would have precluded normal operation.

The Avidyne Digital Flight Control (DFC) 90 autopilot unit was recovered and the internal micro SD card removed. The micro SD card was sent the NTSB Vehicle Recorders Laboratory for further examination and data extraction. Due to damage on the SD card, data recovery was unsuccessful.

MEDICAL AND PATHOLOGICAL INFORMATION

The Garfield County Coroner's Office, Grand Junction, Colorado, performed autopsies on the pilot and passengers. The cause of death listed for each occupant was multiple blunt force injuries.

The FAA's Bioaeronautical Sciences Research Laboratory, Oklahoma City, Oklahoma, performed toxicology testing on specimens of the pilot. Testing was not performed for carbon monoxide and cyanide, and testing was negative for ethanol and drugs.

ADDITIONAL INFORMATION

Spatial Disorientation

According to FAA Safety Team literature, pilots flying under both instrument and visual flight rules are subject to spatial disorientation and optical illusions that may cause a loss of aircraft control. Sight, supported by other senses, allows a pilot to maintain orientation while flying. However, when visibility is restricted (i.e., no visual reference to the horizon or surface detected) the body's supporting senses can conflict with what is seen. When this spatial disorientation occurs, sensory conflicts and optical illusions often make it difficult for a pilot to tell which way is up. Contributing to these phenomena are the various types of sensory stimuli: visual, vestibular (organs of equilibrium located in the inner ear), and proprioceptive (receptors located in the skin, muscles, tendons and joints). Changes in linear acceleration, angular acceleration, and gravity are detected by the vestibular system and the proprioceptive receptors, and then compared in the brain with visual information. In a flight environment, these stimuli can vary in magnitude, direction, and frequency, resulting in a sensory mismatch that can produce illusions and lead to spatial disorientation.

NTSB Probable Cause

The non-instrument-rated pilot's inadequate preflight weather planning, his decision to depart into forecast instrument meteorological conditions along the route of flight, and his continued visual flight into instrument meteorological conditions, which resulted in spatial disorientation and a subsequent loss of airplane control.

© 2009-2020 Lee C. Baker / Crosswind Software, LLC. For informational purposes only.