LAX03FA025

NTSB accident investigation · Cessna 150E · Anaheim Hills, CA · November 8, 2002

Accident · FatalField investigationFinal report
Date
November 8, 2002, 04:30 local (12:30 UTC)
Place
Anaheim Hills, CA
NTSB coordinates
31.8833, -117.6833, outside the stated state
Injuries
1 fatal
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N6236TCessna 150E
Weather
Visual (VMC) · Night/dark
Status
Completed · report December 20, 2005
Report
Approved by Office Director
Parties
Federal Aviation Administration, Teledyne Continental Motors, Cessna Aircraft Company
Case key
56028

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 pilot's continued VFR flight into instrument meteorological conditions and his subsequent failure to maintain clearance from power lines. A contributing factor was the pilot's impairment by 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.

In flight collision with objectCruise
Object - wire,transmission
Light condition - dark night
Terrain condition - mountainous/hilly
Impairment(drugs)Pilot in commandFactor
Vfr flight into imc - continuedPilot in commandCause
Weather condition - low ceiling
Clearance - not maintainedPilot in commandCause

Analysis

The airplane was traversing a pass through the coastal hills during a dark night flight under an overcast when it collided with power lines crossing a freeway. The transmission lines were approximately 150 feet above ground level (agl), at an estimated ground elevation of 450 feet above mean sea level (msl). A witness in a car on the freeway that was generally perpendicular to the power lines observed an aircraft pass over him on the left side of the freeway. He then saw several flashes of light. He noted that it was a very dark night and hazy. He saw a ceiling that was definitely above the aircraft, but could not tell if the ceiling was above the surrounding mountaintops. The aircraft was definitely below the level of the mountaintops. There was no record of the pilot receiving a weather brief from a flight service station or Direct User Access System (DUATS). The pilot did not file a flight plan. Based on weather reports from the witness, the nearest reporting stations, and the destination airport, instrument meteorological conditions prevailed at the accident site with cloud bases around 200 to 300 feet agl and visibilities less than 2 miles in light rain and mist. The toxicology report noted the finding of multiple over-the-counter substances, including diphenhydramine, an over-the-counter antihistamine with sedative and impairing effects. The levels reported for the substances were consistent with recent use. The FAA does not regulate the use of any specific prescription or over-the-counter medications by pilots, though the FAR's do state that (Sec. 91.17): "No person may act or attempt to act as a crewmember of a civil aircraft while using any drug that affects the person's faculties in any way contrary to safety."

Factual narrative

History of flight

On November 8, 2002, about 0430 Pacific standard time, a Cessna 150E, N6236T, collided with power lines near Anaheim Hills, California. The pilot was operating the borrowed airplane under the provisions of 14 CFR Part 91. The commercial pilot, the sole occupant, sustained fatal injuries; the airplane was destroyed. The personal cross-country flight departed Temecula, California, about 0400, en route to Fullerton, California. Weather at the accident site could not be determined; however, night instrument meteorological conditions prevailed at the nearest reporting station, Chino, California, which was about 8 nautical miles (nm) at 020 degrees from the accident site. No flight plan had been filed.

Southern California Edison (SCE) power company personnel responded to a transmission line problem. The SCE personnel discovered downed power lines, and the main airplane wreckage about 100 yards west of the downed lines. The empennage was about 40 feet east of the main wreckage. SCE personnel stated that the transmission lines were approximately 150 feet above the ground, which had an estimated elevation of 450 feet above mean sea level (msl).

A witness said that he was traveling on the westbound California 91 freeway. He heard and saw an aircraft pass over him from his right shoulder to his left shoulder. He saw a white light on the aircraft that periodically flashed. He watched the light and it remained at the 11 o'clock position in his windshield, and left of the freeway.

The witness then observed a quick bright white, egg shaped flash. From his position, he estimated that the flash of light was about the size of an eraser. Immediately below that flash, he observed two white flashes that were each about 1/3 of the size of the upper flash. The three flashes formed a triangle and all were teardropped in shape. The white flashes disappeared and he observed a red light streak 135 degrees across the sky to the right, and it went out as it reached a position in front of the middle of the passenger seat.

The witness was two lanes right of the fast lane, which had two toll road lanes to its left. He didn't see the aircraft after he rounded a curve, and hoped nothing happened to it.

The witness noted that it was very dark night conditions when he observed the aircraft. From his observation location, on many of his morning commutes he could often see the lights of Anaheim and beyond. However, on that morning he could not see the lights. He frequently observes fog and haze and said that this was a normal hazy morning. He saw a ceiling that was definitely above the aircraft. He could not tell if the ceiling was above the surrounding mountaintops, but thought that the clouds were near the mountaintops. He felt that if the aircraft had not hit the wires, it would certainly have hit the mountains immediately west of the wires, because the aircraft was definitely below the level of the mountain tops.

Personnel information

A review of Federal Aviation Administration (FAA) airman records revealed that the pilot held a commercial pilot certificate with airplane single engine land, multiengine land, and instrument ratings. The pilot held a certified flight instructor certificate with an airplane single engine land rating.

The National Transportation Safety Board investigator-in-charge (IIC) obtained the aeronautical experience listed in this report from a review of the FAA airmen medical records on file in the Airman and Medical Records Center located in Oklahoma City, Oklahoma. The pilot held a third-class medical certificate issued on August 5, 2002. It had the limitation that the pilot must wear corrective lenses. The pilot reported on his medical application that he had a total time of 2,740 hours with 0 hours logged in the previous 6 months.

Aircraft information

The airplane was a Cessna 150E, serial number 15060936. A review of the airplane's logbooks revealed a total airframe time of 6,532.3 hours at the last annual inspection. An annual inspection was completed on September 18, 2002. The tachometer read 6,562.3 at the accident scene.

The engine was a Teledyne Continental Motors O-200, serial number 60386-4-A. At the last annual inspection, the total time on the engine was 5,918 hours, and it had 14 hours since a major overhaul.

Meteorological information

There was no record of the pilot receiving a weather brief from a flight service station or Direct User Access System (DUATS).

The closest official weather observation station was Chino, California (KCNO), which was 020 degrees at 8 nautical miles (nm) from the accident site. The elevation of the weather observation station was 652 feet above mean sea level (msl). An aviation routine weather report (METAR) for KCNO was issued at 0428. It stated: skies 1,600 feet overcast; visibility 2 1/2 miles, light rain, mist; winds from 060 degrees at 7 knots; temperature 52 degrees Fahrenheit; dew point 50 degrees Fahrenheit; altimeter 30.04 inches of mercury.

Fullerton (KFUL), the destination airport at an elevation of 96 feet, was about 15 nm at 250 degrees from the accident site.

METARs issued for Fullerton at 0153 and 0253 stated that the skies were 1,200 feet overcast with light rain and mist. The visibility was 3 miles at 0153, and 2 miles at 0253.

A METAR issued for Fullerton at 0353 stated: skies 1,000 feet broken, 1,600 feet overcast; visibility 2 1/2 miles; light rain, mist; winds from 080 degrees at 9 knots; temperature 56 degrees Fahrenheit; dew point 55 degrees Fahrenheit; altimeter 30.01 inches of mercury.

A METAR issued for Fullerton at 0453 stated: skies 800 feet overcast; visibility 1 1/2 miles; rain, mist; winds from 070 degrees at 8 knots; temperature 55 degrees Fahrenheit; dew point 54 degrees Fahrenheit; altimeter 30.01 inches of mercury.

A METAR issued for Long Beach Airport (230 degrees at 19 nm), Long Beach, California, at 0356 stated: skies 500 feet overcast; visibility 4 miles; light rain, mist; winds from 100 degrees at 11 knots; temperature 55 degrees Fahrenheit; dew point 55 degrees Fahrenheit; altimeter 30.00 inches of mercury.

A METAR issued for Long Beach Airport at 0456 stated: skies 500 feet overcast; visibility 3 miles; light rain, mist; winds from 090 degrees at 5 knots; temperature 55 degrees Fahrenheit; dew point 55 degrees Fahrenheit; altimeter 30.00 inches of mercury.

A METAR issued for Orange County Airport (200 degrees at 15 nm), Santa Ana, California, at 0353 stated: skies 1,700 feet scattered, 2,300 feet broken, 3,000 feet overcast; visibility 4 miles; light rain, mist; winds from 110 degrees at 8 knots; temperature 55 degrees Fahrenheit; dew point 54 degrees Fahrenheit; altimeter 30.02 inches of mercury.

A METAR issued for Orange County Airport at 0453 stated: skies 2,400 feet overcast; visibility 6 miles; light rain, mist; winds from 110 degrees at 8 knots; temperature 57 degrees Fahrenheit; dew point 54 degrees Fahrenheit; altimeter 30.00 inches of mercury.

Medical and pathological information

The Orange County Coroner completed an autopsy. The FAA Toxicology and Accident Research Laboratory performed toxicological testing of specimens of the pilot. The results of analysis of the specimens contained no findings for carbon monoxide or cyanide detected in blood, and no ethanol detected in the kidney or liver. The report contained the following findings: 0.155 (ug/ml, ug/g) diphenhydramine detected in blood, diphenhydramine detected in liver; ephedrine detected in blood and liver; pseudoephedrine detected in blood and liver; and 8.787 (ug/ml, ug/g) acetaminophen detected in blood.

Tests and research

Investigators from the Safety Board, Cessna Aircraft Company, and Teledyne Continental Motors examined the wreckage at Aircraft Recovery Service, Little Rock, California, on November 14, 2002.

The left wing had leading edge dents and striated scrapes j

Aircraft

Registration
N6236T
Reported as
Cessna 150E
Category
Airplane
Serial number
15060936
Airframe hours
6,562
Engine
Teledyne Continental O-200-A, 100 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
Brenda I. Benbow
Airworthiness certificate
Standard, Normal; Standard, Utility
Last inspection
Annual · September 1, 2002 · 30 hours before
Departed
F70 · Temecula, CA
Destination
FUL · Fullerton, CA

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

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
58
Injuries
Fatal
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 3, Valid Medical--w/ waivers/lim
Last flight review
September 1, 2002
Seat
Left
Toxicology
Performed
Flight hours
2,740 total

Weather

Conditions
Visual (VMC) · Night/dark
Wind
60° at 7 knots
Visibility
2.5 statute miles
Lowest ceiling
1,600 ft overcast
Temperature
52 °F, dew point 50 °F
Altimeter
30.04 inHg
Observed at
CNO, 8 nm away

Other investigations on N6236T · 2

Matched to the same aircraft by N-number and date.