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N949FM accident description

Washington map... Washington list
Crash location 47.622778°N, 120.423889°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 Wenatchee, WA
47.423460°N, 120.310349°W
14.8 miles away
Tail number N949FM
Accident date 23 Jul 2014
Aircraft type Bell 206A
Additional details: None

NTSB Factual Report

HISTORY OF FLIGHT

On July 23, 2014, about 1418 Pacific daylight time, a Bell 206A, N949FM, landed hard and rolled onto its right side near Wenatchee, Washington. Applebee Aviation was operating the helicopter under the provisions of Title 14 Code of Federal Regulations (CFR) Part 91 for the cherry tree drying operation. The commercial pilot sustained fatal injuries. The helicopter sustained substantial damage during the accident sequence. The local flight departed at an undetermined time. Visual meteorological conditions (VMC) prevailed, and no flight plan had been filed.

No witnesses visually observed the accident. An ear witness heard the helicopter, and then a thud followed by silence. This witness and her spouse responded to the site, and observed the helicopter on its side and smoking. Other personnel arrived; they applied several fire extinguishers to the smoking area at the back of the engine, and the smoking stopped.

PERSONNEL INFORMATION

The operator reported that the 40-year-old pilot held a commercial pilot certificate with a rating for rotorcraft-helicopter. The pilot held a second-class medical certificate issued on June 30, 2014, with no limitations or waivers.

An examination of the pilot's logbook indicated an estimated total flight time of 237 hours as of the last entry on July 15, 2014. He logged 12 hours in the previous 30 days, and had an estimated 13.2 hours in this make and model. The pilot's first logged entry was July 13, 2004. The logbook indicated 121.7 hours in an R22, and 76.8 hours in a Hughes 269A. He completed a flight check for the commercial pilot certificate on June 23, 2014.

AIRCRAFT INFORMATION

The helicopter was a Bell 206A, serial number 87. The operator reported that the helicopter had a total airframe time of 9,607 hours at the most recent annual inspection on April 22, 2014.

The engine was a Rolls-Royce Allison, serial number CAE800363B. Total time recorded on the engine at the most recent annual inspection was 3,919 hours, and time since major overhaul was 538 hours.

METEOROLOGICAL CONDITIONS

An aviation routine weather report (METAR) for Wenatchee (KEAT), elevation 1,249 feet, 16 nautical miles (nm) southeast of the accident site, was issued at 1355 PDT. It stated: wind from 320 degrees at 11 knots; visibility 10 miles; sky 4,900 feet broken, 6,500 feet overcast; temperature 22/72 degrees C/F; dew point 14/57 degrees C/F; altimeter 39.91 inches of mercury.

WRECKAGE AND IMPACT INFORMATION

The National Transportation Safety Board investigator-in-charge (IIC) and a Federal Aviation Administration (FAA) inspector examined the wreckage on site. Detailed examination notes are in the public docket for this accident, and accessible via a link on the ntsb.gov home page.

The helicopter was on its right side; the landing zone (LZ) was a grassy area that sloped in two directions. As the helicopter would approach to land from the left, there was a gradual downhill slope that was left to right and tail to nose.

The back section of the skids was more damaged than the front. The back right cross member separated at the connection of the skid; the back left cross member partially separated at the connection with the skid. There was a ground scar about 1-foot prior to the right skid in the direction of flight that was several feet long and parallel to the right skid.

The left horizontal stabilator was touching the ground, exhibited crush damage, and was bent down; there was a ground scar about 15 inches long leading to it. The right horizontal stabilator was pointing up, and was not damaged.

The vertical stabilators were in a horizontal position. The bottom of the vertical stabilator and stinger were not damaged. The top of the vertical stabilator was damaged, and bent about 50 degrees to the left.

All servos were damaged with multiple jagged and angular separations.

Recovery personnel obtained about 25 gallons of clean clear fluid from the fuel tank that smelled like jet fuel.

MEDICAL AND PATHOLOGICAL INFORMATION

A postmortem examination was conducted by the Chelan County Coroner's Office. The cause of death was reported as the effect of blunt force injuries to the head.

Toxicological tests on specimens recovered from the pilot were performed by the FAA Civil Aerospace Medical Institute (CAMI) Forensic Toxicology Research Team, Oklahoma City, Oklahoma. Their analysis revealed no findings for carbon monoxide or volatiles. They did not perform tests for cyanide.

The report contained the following findings for tested drugs: 0.028 (ug/ml, ug/g) O-Desmethyltramadol detected in blood, O-Desmethyltramadol detected in urine, 1.117 (ug/ml, ug/g) Tramadol detected in urine, and 0.139 (ug/ml, ug/g) Tramadol detected in blood.

An NTSB medical officer reviewed the autopsy and toxicology findings, and prepared a factual report, which is part of the public docket for this accident.

Tramadol is an opioid analgesic Schedule IV controlled substance available by prescription, often marketed with the name Ultram. Therapeutic levels are considered between 0.05 ug/ml and 0.50 ug/ml. Tramadol carries the following warning: may impair mental and/or physical ability required for the performance of potentially hazardous tasks (e.g., driving, operating heavy machinery). Tramadol is also associated with an increase in the risk of seizures, particularly soon after initiation of treatment, doses are increased, or when high doses are used. The seizure warning reads, "Seizures have been reported in patients receiving Tramadol hydrochloride within the recommended dosage range. Spontaneous post-marketing reports indicate that seizure risk is increased with doses of Tramadol hydrochloride above the recommended range.

TESTS AND RESEARCH

Investigators examined the wreckage at a facility provided by the operator on July 30, 2014. Detailed examination notes are in the public docket for this accident.

The airframe and engine were examined with no mechanical anomalies identified.

NTSB Probable Cause

The pilot's failure to maintain a proper decent rate and path, which resulted in a hard landing and dynamic rollover. Contributing to the accident was the pilot's impairment by a sedating medication.

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