Warsaw, OH, USA
N9345Q
BEECH G33
The commercial pilot departed on an instrument flight rules cross-country flight in the single-engine airplane that was not certificated for flight in icing conditions. During cruise flight at 4,000 ft mean sea level (msl), the pilot reported to air traffic control that the airplane was accumulating airframe icing and requested and was cleared to descend to 3,000 ft msl. As the airplane descended, the pilot indicated to the controller that the airplane had descended below the clouds, was in temperatures greater than 32°F, and that the airframe icing was "clearing up"; however, the airplane continued to descend and subsequently impacted terrain. First responders discovered pieces of ice at the accident site that displayed a curvature consistent with the leading edge of a wing or horizontal stabilizer. Examination of the airframe and engine did not reveal any preimpact anomalies that would have precluded normal operation of the airplane. There was no evidence that the pilot received an official weather briefing before the flight, which would have indicated the potential for moderate or greater icing conditions between 3,000 and 15,000 ft msl. It could not be determined if the pilot received any weather information from other sources. Review of additional weather information indicated the possibility of supercooled large droplet (SLD) icing in the area of the accident site about the time of the accident. It is likely that the structural icing accumulated during the flight resulted in the pilot's inability to maintain airspeed and/or altitude, leading to a loss of control.
HISTORY OF FLIGHTOn April 16, 2018, about 0632 eastern daylight time, a Beech G33 airplane, N9345Q, impacted terrain near Warsaw, Ohio. The commercial pilot and the passenger were fatally injured. The airplane was substantially damaged. The airplane was privately owned and operated as a Title 14 Code of Federal Regulations Part 91 personal flight. Instrument meteorological conditions prevailed, and an instrument flight rules flight plan was filed for the flight, which departed from Elyria Airport (1G1), Elyria, Ohio, and was en route to Deland Municipal Airport, Deland, Florida. According to Federal Aviation Administration air traffic control information, at 0627, the pilot reported to the controller that he needed to descend from 4,000 ft mean sea level (msl) to 3,000 ft msl due to icing. Passing through 3,700 ft, the pilot reported, "looks like we are out of the clouds here." When the airplane reached 3,000 ft, the controller asked the pilot for an update; the pilot replied that they were underneath the clouds and that the temperature was 34°F above freezing. As the airplane descended to 2,700 ft, the controller issued a low altitude alert and told the pilot that the minimum vectoring altitude in the area was 2,900 ft. The pilot acknowledged and stated, "we have some rime ice, but we are losing it." The controller asked if the pilot needed to land and the pilot responded "negative," indicating again that the icing was "clearing up" and that the temperature was 39°F; however, the airplane continued to descend through 2,200 ft. When the controller queried the pilot, the pilot responded, "ah, we're doing okay right now" and "waiting for this ice to dissipate." The airplane continued to descend until radar contact was lost at 0632 at an altitude of 1,500 ft. A passing pilot spotted the wreckage of the airplane and relayed the information to the controller, who notified local law enforcement. AIRCRAFT INFORMATIONThe accident airplane was not equipped or certificated for flight in any icing conditions. METEOROLOGICAL INFORMATIONA review of the National Weather Analysis (NWA) Chart issued at 0500 on the day of the accident indicated that the accident site was west of the surface low pressure center in western Pennsylvania and a surface trough that connected that surface low pressure center and a surface low pressure center in eastern Lake Erie. Modeling depicted air temperatures in the upper 30s to mid-40s °F, dew point temperatures in the mid-30s °F with temperature-dew point spreads of 5° F or less, a west wind of 10 to 15 knots, overcast sky cover, and light rain. The 0800 upper air sounding from a station 98 miles west-southwest of the accident site depicted a greater than 90% relative humidity from the surface to 8,000 ft mean sea level (msl ). The freezing level was located at 1,512 ft msl (505 ft agl). An interactive sounding analysis program reported the possibility of clouds from 2,000 ft through 14,000 ft msl. Moderate or greater rime icing was indicated between 2,000 and 9,500 ft msl (around 1,000 to 8,500 ft agl). In addition, there was a high probability of light to moderate clear-air turbulence in several layers between the surface and 13,000 ft msl. Satellite infrared imagery indicated cloud cover over the accident site with approximate tops at 15,000 ft msl. Additional data indicated mid-level water clouds and thick mid-level water or ice clouds. There are no SIGMET advisories or Center Weather Service Unit (CWSU) Center Weather Advisories (CWA) valid for the accident site at the accident time. An AIRMET Zulu was valid for the accident site at the accident time for altitudes below 18,000 ft msl. AIRMET Zulu warned of moderate icing conditions below 15,000 ft. The AIRMET was issued at 0445 and valid until 1100. The Graphical Forecasts for Aviation (GFA) products made available before the accident time and before the accident flight departed 1G1 indicated cloud cover between 3,500 ft and 10,000 ft msl with a 30 to 60% chance of light rain showers or moderate rain and a surface wind from the west between 10 to 15 knots. Current Icing Potential (CIP) and Forecast Icing Potential (FIP) products are created by the NWS Aviation Weather Center (AWC) and are intended to be supplemental to other icing advisories (e.g. AIRMETs and SIGMETs). The FIP images indicated a 60 to 85% probability of light to moderate icing at 4,000 to 6,000 ft at 0600 at the accident site. The FIP indicated no potential for any Supercooled Large Droplets. This FIP information would have been available on the NWS AWC website before the accident flight departed 1G1. The CIP product indicated a 40 to 85% probability of light icing at 4,000 to 6,000 ft at 0600 at the accident site. The CIP also indicated a 40 to 70% chance of SLD near the accident site around the accident time, with the bottom of the SLD layer between 2,500 and 5,000 ft msl and the top of the SLD layer between 12,500 and 15,000 ft msl. A search of official weather briefing sources, such as Leidos Flight Service and Direct User Access Terminal Service (DUATS), revealed that the accident pilot did not request a weather briefing from Leidos or DUATS. ForeFlight did not have any record of the accident pilot accessing weather information. With no internet access while in flight, ForeFlight is still able to access weather information directly from the FAA, but leaves no remote record of such access. There was no record of the accident pilot receiving or retrieving any other weather information before or during the accident flight. AIRPORT INFORMATIONThe accident airplane was not equipped or certificated for flight in any icing conditions. WRECKAGE AND IMPACT INFORMATIONThe airplane impacted a wooded area; several large trees displayed damage consistent with impact. The outboard section of the right wing was found near the base of one of the trees. Portions of the wing and pieces of plexiglass where found in the debris path, which was about 100 ft long and oriented heading of about 220°. The wreckage came to rest in the upright position. A postcrash fire consumed a majority of the fuselage and cockpit area. Flight control continuity was confirmed from the cockpit controls to the flight control surfaces. The landing gear and flaps were both in the retracted position. The propeller was fractured at the propeller hub; all three blades displayed nicks, gouges, curling, and rotational scoring. There were numerous branches with 45° cuts found in the debris field. No preimpact anomalies were detected with the airframe engine. A member of the Ohio State Highway Patrol – Crash Reconstruction and Analysis Unit documented the accident scene and discovered two pieces of ice located about 25 ft east of the main wreckage with a curvature similar to the leading edge of a wing or horizontal stabilizer. ADDITIONAL INFORMATIONFAA Advisory Circular 91-74B, Pilot Guide: Flight in Icing Conditions, stated: An aircraft with a completely unprotected wing is unlikely to be certificated for flight in icing conditions, but may inadvertently encounter icing conditions…The ice causes an increase in drag, which the pilot detects as a loss in airspeed or an increase in the power required to maintain the same airspeed. (The drag increase is also due to ice on other parts of the aircraft). The longer the encounter, the greater the drag increase; even with increased power, it may not be possible to maintain airspeed. If the aircraft has relatively limited power (as is the case with many aircraft with no ice protection), it may soon approach stall speed and a dangerous situation. MEDICAL AND PATHOLOGICAL INFORMATIONAn autopsy was conducted on the pilot by the Office of the Licking County Coroner, Newark, Ohio. The autopsy cited cause of death due to multiple blunt force injuries. The autopsy also noted the presence of mild atherosclerosis of the aorta. The FAA Forensic Sciences Laboratory performed toxicology testing on specimens from the pilot. Testing was positive for losartan, which is used to treat high blood pressure and to lower the risk of stroke in certain people with heart disease. The pilot had reported his use of this medication to the FAA, and it is not impairing.
The pilot's decision to continue flight in known icing conditions, which resulted in structural icing, degraded airplane performance, and a subsequent loss of control. Contributing to the accident was the pilot's failure to obtain an official weather briefing before departure.
Source: NTSB Aviation Accident Database
Aviation Accidents App
In-Depth Access to Aviation Accident Reports
