NYC08LA253

NTSB accident investigation · Carrithers Carl L VP1 · Starkville, MS · July 22, 2008

Accident · Serious injuriesLimited investigationFinal report
Date
July 22, 2008, 15:57 local (20:57 UTC)
Place
Starkville, MS
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N822CBCarrithers Carl L VP1
Defining event
Initial climb: Collision during takeoff/land
Weather
Visual (VMC) · Day
Status
Completed · report December 29, 2009
Report
Approved by Office Director
Parties
FAA/FSDO
Case key
68472

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 failure to maintain clearance from trees during takeoff. Contributing to the accident was the pilot's impairment by alcohol.

Findings · 3

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Performance/control parameters: climb rateAircraft › Aircraft oper/perf/capability · Not attained/maintainedCarrithers Carl L VP1: 1 caseAll aircraft: 265 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotCarrithers Carl L VP1: 1 caseAll aircraft: 9,295 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The pilot was conducting his third takeoff from the runway, in which he intended to complete a 180-degree return to the airport. When the airplane was at an altitude of about 300 feet above ground level (75 feet above the trees), the pilot initiated a 25-degree left bank turn back toward the runway. During the turn, the airplane impacted trees and was substantially damaged. Examination of the airplane revealed no mechanical deficiencies. The pilot’s blood alcohol level was 0.13 g/dL one hour after the accident. He had a history of DUIs and inpatient alcohol-related treatment, and a history of anxiety treated with prescription medication (paroxetine and alprazolam); however, he denied any medical or alcohol-related history on his applications for FAA airman medical certificates. The pilot would have been impaired by the effects of alcohol while flying the aircraft, and he may also have been impaired by use of alprazolam. According to 14 Code of Federal Regulations Part 91.17, "No person may act ... as a crewmember of a civil aircraft ... while under the influence of alcohol…or while having an alcohol concentration of 0.04 or greater in a blood or breath specimen."

Factual narrative

On July 20, 2008, at 1557 central daylight time, an experimental amateur-built Carrithers VP1, N822CB, was substantially damaged during takeoff from George Bryan Airport (STF), Starkville, Mississippi. The certificated private pilot was seriously injured. Visual meteorological conditions prevailed at the time of the accident, and no flight plan was filed for the local personal flight conducted under the provisions of Title 14 Code of Federal Regulations (CFR) Part 91.

The pilot reported that on the day of the accident he had performed two takeoffs and landings without incident. During the third takeoff, he intended to complete a 180-degree turn back to the airport and land on the opposite runway from which he departed. The pilot remembered advancing the power to full throttle during takeoff, and departing toward the south on runway 18. When the airplane was at an altitude of about 300 feet above ground level (75 feet above the trees), he initiated a 25-degree left bank turn back toward the runway.

The pilot did not remember the rest of the accident sequence; however, he didn't think the airplane was "climbing as well as it normally did." The pilot stated he thought the density altitude was about 2,800 feet mean sea level (msl), and the runway length was 5,200 feet. The airplane's gross weight, at the time of the accident was approximately 850 pounds.

According to the pilot the airplane was last fueled with 5 gallons of 100 low lead aviation fuel just prior to takeoff. The airplane was equipped with an 8 gallon fuel tank.

According to a witness, who was also a Federal Aviation Administration (FAA) Designated Pilot Examiner, he observed the airplane liftoff from runway 18, and climb to about 50 feet "in ground effect." As the airplane passed the departure end of the runway, it "started losing altitude," and impacted trees about 1/2 mile south and west of the runway extended centerline.

Examination of the airplane by an FAA inspector revealed substantial damage to the fuselage and wings. No pre-impact mechanical deficiencies were noted.

The pilot held a private pilot certificate with a rating for airplane single-engine land. His most recent FAA second-class medical certificate was issued on January 10, 2007.

At the time of the accident, the pilot reported 9,018 hours of total flight experience, 600 of which were in the accident airplane's make and model .

The 1550 recorded weather at Golden Triangle Regional Airport (GTR), Columbus, Mississippi, 14 miles east of the accident location, included winds from 270 degrees at 4 knots, visibility 10 miles, scattered clouds at 7,000 feet agl, temperature 37 degrees C, dewpoint 19 degrees C, and an altimeter setting of 30.06 inches mercury. The calculated density altitude was 2,628 feet msl.

The George Bryan Airport consisted of one asphalt runway oriented in a 18/36 configuration. The runway was 5,550 feet-long and 150 feet wide.

The Starkville Police Department Chief of Police reported that the pilot had a blood alcohol content of .130 upon his arrival at the local hospital after the accident. The blood alcohol content (.130) exceeded the legal threshold for operation of a motor vehicle (.08) while under the influence of alcohol.

According to local police investigative records, the pilot had a history of two DUIs in 1994, and residential treatment for “alcohol abuse” that same year. Those records indicated that the pilot’s primary care physician had prescribed alprazolam (at a dose reported in the records obtained as “5 mg, twice a day”) and paroxetine for “stress and anxiety” diagnosed “5-6 years ago.” The records indicated that the pilot’s blood alcohol level was 0.13 g/dL one hour after the accident and noted that his symptoms were consistent with “a relapse following treatment for alcohol dependence.”

Applications for Airman Medical Certificate submitted to the FAA in 1980, 1984, 1985, 1988, 1999, 2001, and most recently (for a 2nd class Airman Medical Certificate) on January 10, 2007 did not note any history of alcohol-related diagnoses, treatments, convictions, or administrative actions. The pilot's most recent application indicated no use of medications, and no history of anxiety.

According to 14 CFR Part 91.17, "No person may act ... as a crewmember of a civil aircraft ... while under the influence of alcohol…or while having an alcohol concentration of 0.04 or greater in a blood or breath specimen. "

Aircraft

Registration
N822CB
Reported as
Carrithers Carl L VP1
Category
Airplane, amateur-built
Serial number
091650
Engine
Volkswagen CONVERSION, 36 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Carrithers Carl Lee
Registered owner
Carrithers Carl Lee
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · July 20, 2008 · 51 hours before
Departed
STF · Starkville, MS
Airport
STF · George Bryan Airport, runway 18, 5,550 × 150 ft

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
57
Injuries
Serious
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 2, With waivers/limitations
Seat
Single
Flight hours
9,018 total · 600 in this make and model · 9,018 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
99 °F, dew point 66 °F
Altimeter
30.05 inHg
Observed at
GTR, 14 nm away

Docket · 8

The files NTSB released with the investigation on August 11, 2009, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.1 MB in all.