NYC06LA144

NTSB accident investigation · Taylorcraft BC12-D · Mayville, NY · June 13, 2006

Accident · FatalLimited investigationFinal report
Date
June 13, 2006, 12:15 local (16:15 UTC)
Place
Mayville, NY
Injuries
1 fatal, 1 serious
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N96486Taylorcraft BC12-D
Weather
Visual (VMC) · Day
Status
Completed · report November 29, 2007
Report
Approved by Office Director
Parties
FAA/FSDO
FAA report
20060613023889A
Case key
63903

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The flight instructor's improper decision to attempt a simulated engine failure at a low altitude and her failure to maintain clearance from trees and wires, while maneuvering. Also causal was the flight instructor's impairment from prescription medication.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of control - in flightManeuvering
Planning/decision - improperPilot in command(cfi)Cause
Impairment(drugs)Pilot in command(cfi)Cause
Altitude/clearance - not maintainedPilot in command(cfi)Cause
In flight collision with objectManeuvering
Object - wire,transmission
Object - tree(s)

Analysis

The student pilot initiated a takeoff, and as the airplane reached an altitude of 200 to 600 feet, the CFI "pulled the power" to simulate an engine failure. The student pilot "shoved" the nose of the airplane down, assured the airspeed was 60 mph, and initiated a "gentle" left turn. While the airplane was turning, the student pilot noticed the CFI was "preoccupied" with something on the instrument panel. Shortly after, the CFI took control of the airplane, and stated, "I'll fly now." The airplane then struck power lines and trees, and impacted the ground. Examination of the airplane and engine revealed no preimpact mechanical anomalies. The pilot had been treated for chronic back pain for approximately 10 years, and had become addicted to pain medication. Additionally, she suffered from severe abdominal symptoms, likely caused by her dependence on narcotics. During the 4 years preceding the accident, the pilot was prescribed multiple narcotics to treat her pain. At the time of the accident, the pilot was regularly filling prescriptions for fentanyl (an imparing narcotic) patches and carisoprodol (a sedative muscle relaxant) at least every four weeks. She was also taking gabapentin (an anti-seizure medication, also used to treat chronic pain), and fFluconazole (a prescription n antifungal medication prescribed 8 days prior to the accident, which had the potential to substantially interfere with the metabolism of fentanyl). The pilot was found wearing fentanyl patches in excess of the amount prescribed. Postaccident toxicology testing performed on the pilot revealed fentanyl, carisoprodol, fluconazole, and gabapentin was detected in the pilot'sin her blood and urine. The level of fentanyl detected in the pilot's blood was several times the maximum expected from typical use of doses prescribed. The pilot had not noted her narcoctic dependence or use of any medications other than ibuprofen, on her applications for airmen medical certification. If they had been reported, the certificate would have been denied.

Factual narrative

This case was modified 11/21/2007

History of flight

On June 13, 2006, at 1215 eastern daylight time, a Taylorcraft BC12-D, N96486, was substantially damaged when it impacted trees during takeoff from the Dart Airport (D79), Mayville, New York. The certified flight instructor (CFI) was fatally injured and the student pilot received serious injuries. Visual meteorological conditions prevailed and no flight plan was filed for the local instructional flight conducted under 14 CFR Part 91.

According to the student pilot, he arrived at the airport at 1030, and completed a preflight inspection with the assistance of the CFI. He noted they had 13 gallons of fuel on board, 10 in the main tank and 3 in the left wing tank. They started the airplane, performed a run-up inspection, and noted no abnormalities. The student pilot initiated a takeoff on runway 31, and as the airplane reached an altitude of 200 to 600 feet, the CFI "pulled the power" to simulate an engine failure. The student pilot "shoved" the nose of the airplane down, assured the airspeed was 60 mph, and initiated a "gentle" left turn. While the airplane was turning, the student pilot noticed the CFI was "preoccupied" with something on the instrument panel. Shortly after, the CFI took control of the airplane, and stated, "I'll fly now." The airplane then struck power lines and trees, and impacted the ground.

During an interview with a Federal Aviation Administration (FAA) inspector, the student pilot reported that he had performed simulated engine failures after takeoff, twice before, with the CFI; however, during both maneuvers, the airplane was at an altitude of at least 800 feet AGL. The student pilot also reported that on the day of the accident, the CFI did not perform a briefing prior to their departure.

A witness, who was the flight instructor's father and owner of the airport, reported that the flight instructor and student pilot had been flying for about 20 minutes, practicing touch and go landings at the airport. The witness stated that during the fourth takeoff from runway 31, he observed the airplane at the end of the runway, and observed the airplane in a "panic left hand turn." He then heard a power increase and observed the airplane impact trees. The airplane then "stalled" and spun to the right before impacting the ground.

Personnel information

According to FAA records, the certified flight instructor reported 3,300 hours of total flight experience at the time of her most recent FAA second-class medical certificate, dated July 14, 2005. Attempts to locate her logbook were unsuccessful.

The student pilot reported 4 hours of total flight experience, all of which was accumulated in the accident airplane. He did not hold a current medical certificate.

Aircraft information

The airplane was manufactured in 1946 and owned by the father of the student pilot.

Examination of airplane and engine logbooks revealed the most recent annual inspection was completed in August 2005.

Meteorological information

Weather reported at the Chautauqua County/Jamestown Airport (JHW), Jamestown, New York, approximately 13 miles to the southeast of D79, at 1151, included calm wind, visibility 10 miles, scattered clouds at 2,200 feet, broken clouds at 2,900 feet, temperature 61 degrees Fahrenheit, dew point 52 degrees Fahrenheit, and an altimeter setting 30.11 inches of mercury.

Airport information

Runway 31, at Dart Airport, was a turf runway, which was 2,750 feet long and 60 feet wide.

Wreckage and impact information

According to an FAA inspector who examined the airplane and the accident site, the airplane struck a wire on a 40-foot tall power line, impacted the tops of trees, and then impacted the ground in a near-vertical attitude, about 1/4 mile from the end of runway 13.

Approximately 3 gallons of fuel were drained from the left wing, and the right wing fuel tank was dry. The main tank was compromised; and the amount of fuel contained could not be determined. The left fuel tank was leaking fuel, and the right tank was intact and displayed evidence of a preexisting leak. The main fuel selector was "on," the left wing fuel selector was "on," and the right wing fuel selector was "off." All fuel lines forward of the firewall were removed and residual fuel was observed. The lines were unobstructed and no contamination was observed in the residual fuel. The gascolator was found approximately 25 percent full of fuel, and the screen was clear. The engine driven fuel pump operated normally, and residual fuel was observed inside the pump.

The engine was rotated by hand at the propeller, and valve train continuity was confirmed to all cylinders. Compression was obtained on all cylinders; however, the inspector noted that the compression was "weak." Examination of the spark plugs revealed they were two different types. The top spark plugs were light gray in color and their electrodes were worn "square." Three of the four top spark plugs had excessive clearance. The bottom spark plugs were tan in color, their electrodes were worn "oblong," and they displayed lead build-up and carbon fouling. The magnetos could not be sparked due to impact damage.

The mixture and throttle control levers were observed in the full forward position.

Medical and pathological information

The Erie County Office of the Medical Examiner performed an autopsy on the flight instructor on June 14, 2006.

The FAA Toxicology and Accident Research Laboratory, Oklahoma City, Oklahoma conducted toxicological testing on the flight instructor. Review of the toxicology report revealed:

"FLUCONAZOLE present in Urine

TRIMETHOPRIM present in Blood

TRIMETHOPRIM present in Urine

21.9 (ng/mL, ng/g) FENTANYL detected in Blood

119.35 (ng/mL, ng/g) FENTANYL detected in Urine

6.01 (ug/ml, ug/g) MEPROBAMATE detected in Blood

MEPROBAMATE present in Urine

0.307 (ug/mL, ug/g) CARISOPRODOL detected in Blood

CARISOPRODOL present in Urine

FLUCONAZOLE detected in Blood

METOCLOPRAMIDE detected in Blood

GABAPENTIN present in Blood

GABAPENTIN present in Urine"

Review of the pilot's personal medical records by the NTSB Medical Officer revealed that she had been treated for chronic back pain since at least 1996, and had become addicted to a narcotic medication (oxycodone). Her physical medicine and rehabilitation (PM&R) specialist noted that she was working as a flight instructor at the time he initially referred her for detoxification. She was admitted for inpatient treatment of her addiction in May 2001, and was subsequently prescribed narcotics (codeine) by a dentist in September and October 2001, and (hydrocodone) by a primary care provider in November and December 2001. She continued to complain of chronic back and leg pain from 2001 through a physician visit within one month of the accident and to receive various prescription medications (including multiple narcotic medications). In April 2003, she underwent removal of an ovarian cyst after complaining of severe abdominal pain; she continued to complain of chronic abdominal pain from 2003 through a physician visit within 2 months of the accident. At the time of the accident, the pilot had been filling prescriptions for fentanyl (15 each of 100 mcg/hr patches and 25 mcg/hour patches) and carisoprodol (120 350mg tablets) at least every 4 weeks. Additional "current medications" noted on a primary care provider visit for "allergic rhinitis and sinus infection" one week prior to the accident included gabapentin, alprazolam, metoclopramide, and esomeprazole; medications noted as being prescribed at that visit were fluconazole, levofloxacin, loratadine, and triamcinolone nasal spray. The pilot had not noted her history of narcotic dependence or her use of any medications for pain control other than ibuprofen on her applications for airman medical certificate.

According to the Medical Examiner's auto

Aircraft

Registration
N96486
Reported as
Taylorcraft BC12-D
Category
Airplane
Serial number
8786
Airframe hours
2,900
Engine
Continental C85-12, 85 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 1, 2005
Departed
D79 · Mayville, NY
Destination
D79 · Mayville, NY
Airport
D79 · Dart Airport, runway 31, 2,750 × 60 ft, grass/turf

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew · 2

As NTSB recorded them. NTSB leaves out names.

Role
Flight instructor
Age
36
Injuries
Fatal
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Seat
Right
Toxicology
Performed
Flight hours
3,300 total
Role
Student pilot
Age
17
Injuries
Serious
Certificate
Student
Seat
Left
Flight hours
4 total · 4 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
2,900 ft broken
Temperature
61 °F, dew point 52 °F
Altimeter
30.11 inHg
Observed at
JHW, 13 nm away

Docket · 11

The files NTSB released with the investigation on November 3, 2007, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.5 MB in all.

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.