FTW01LA191

NTSB accident investigation · Piper PA-46-310P · Bulverde, TX · August 23, 2001

Accident · FatalLimited investigationFinal report
Date
August 23, 2001, 16:41 local (21:41 UTC)
Place
Bulverde, TX
Injuries
1 fatal, 1 serious
Damage
Destroyed
Phase of flight
Initial climb
Aircraft
N4362APiper PA-46-310P
Weather
Visual (VMC) · Day
Status
Completed · report July 15, 2002
Report
Approved by Office Director
Parties
Teledyne Continental Motors, Federal Aviation Administartion, The New Piper Aircraft, Inc
FAA report
20010823026109A
Case key
53103

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 obtain airspeed after rotation, which resulted in a stall/mush. Contributing factors were the tailwind condition, high density altitude, and upsloping runway.

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 terrain/waterTakeoff - initial climb
Airspeed - not obtained/maintainedPilot in commandCause
Stall/mush - encounteredPilot in command
Weather condition - tailwindFactor
Weather condition - high density altitudeFactor
Airport facilities,runway/landing area condition - uphillFactor
Object - tree(s)

Analysis

The airplane's fuel tanks were fueled from a self serve fuel pump with 63 gallons of fuel prior to departure. The pilot initiated the takeoff roll from runway 30 with a 10 knot tailwind. The airplane was reported to have used the entire length of the runway during the takeoff roll. The airplane became airborne, attained a height approximately 100 feet agl, entered a descent, and subsequently, impacted the ground. A post accident fire consumed the airplane. Immediately following the accident, the pilot reported to local authorities that "he was leaving the airstrip and the plane stalled due to lack of airspeed." The 3,000-foot runway rises rapidly at its north end, such that the departure end of runway 30 was 50 feet higher than the approach end. At the time of the accident, the wind was from 130 degrees at 10 knots and the density altitude was 4,136 feet. Examination of the engine did not reveal any anomalies that would have precluded its operation prior to the accident.

Factual narrative

On August 23, 2001, approximately 1641 central daylight time, a Piper PA-46-310P single-engine airplane, N4362A, was substantially damaged when it impacted terrain during the initial takeoff climb from the Kestrel Airpark Airport, Bulverde, Texas. The airplane was registered to Klinck Store No 3, Inc., of McAllen, Texas, and operated by two private individuals who were the co-owners and pilots. The private pilot sustained serious injuries and his pilot-rated passenger, who co-owned the airplane, was fatally injured. Visual meteorological conditions prevailed, and no flight plan was filed for the 14 Code of Federal Regulations Part 91 flight. The personal flight was originating at the time of the accident.

According to witnesses, prior to departure the airplane was fueled from a self-serve fuel pump with 63 gallons of fuel. The 3,100-hour pilot initiated the takeoff roll from runway 30. The airplane was observed to utilize the entire length of the runway during the takeoff roll. The airplane became airborne and attained a height approximately 100 feet agl before it entered a descent and impacted the ground. A fire erupted and both occupants were extracted from the airplane by local residents. According to the Texas Department of Public Safety in New Braunfels, Texas, prior to being transported to the hospital, the pilot reported that "he was leaving the airstrip and the plane stalled due to lack of airspeed." The fire consumed the entire airplane, except for the engine and propeller. On August 31, 2001, the passenger succumbed to his injuries. As of the date of this report, the pilot was undergoing rehabilitative treatment for his injuries and was not available for an interview.

FAA inspectors examined the airplane and the accident site. They reported that the 3,000-foot runway contained an upward slope, and that the departure end of runway 30 was 50 feet higher than the approach end. According to airport information, runway 30 "rises rapidly at the north end." The FAA inspectors also stated that the airplane's energy path was approximately 1/3 mile long, along which they located damaged trees with "well-defined cuts that a propeller under power would have made." The propeller blades were bent toward the cambered side and one blade exhibited an "S" type bend. The entire fuselage, from the cockpit aft to the vertical stabilizer, was consumed by the fire. The airplane's maintenance records were not located during the investigation.

At 1653, the weather observation facility at the San Antonio International Airport, San Antonio, Texas, (located 20 miles south of the accident site) reported a few clouds at 9,000 feet, scattered clouds at 25,000 feet, visibility 10 miles, temperature 99 degrees Fahrenheit, dew point 61 degrees Fahrenheit, wind from 130 degrees at 10 knots, and an altimeter setting of 29.94 inches of mercury. The density altitude was calculated to be 4,136 feet.

On September 6, 2001, the Teledyne Continental Motors (TCM) TSIO-550-C engine was examined under supervision of the NTSB Investigator-In-Charge. The engine was intact, displayed no signs of catastrophic failure, and all of the accessories were attached; however, it did display fire damage. The top spark plugs and oil pump cover were removed and the crankshaft was rotated by hand. Crankshaft continuity was confirmed from the propeller to each of the cylinders and to the accessory drive gears. A thumb compression check was performed and according to the TCM representative, "good hand compression was confirmed on all cylinders." The left magneto produced a spark at each terminal when its drive was rotated, and the right magneto sparked at 4 terminals when its drive was rotated. The right magneto was disassembled and its distributor was partially melted. The fuel pump, fuel manifold, fuel control unit, and oil filter were disassembled and examined. The components did not display any anomalies that could not be attributed to the post accident fire. The left and right turbochargers were disassembled and examined. Rotational scoring was observed on both turbocharger compressor shrouds.

Aircraft

Registration
N4362A
Reported as
Piper PA-46-310P
Category
Airplane
Serial number
46-8408053
Engine
Continental TSIO-550-C(1), 310 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Personal · Part 91
Operator
Mr. Jan M. Klinck & Mr. Gary K. Klinck, doing business as N/A
Registered owner
Klinck Store No 3 Inc.
Airworthiness certificate
Standard, Normal
Departed
1T7 · Bulvarde, TX
Destination
Unknown
Airport
1T7 · Kestrel Airpark, runway 30, 3,000 × 40 ft, asphalt

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
Pilot
Age
57
Injuries
Serious
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
3,100 total
Role
Other flight crew
Age
49
Injuries
Fatal
Certificate
Private
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Right
Flight hours
2,360 total

Weather

Conditions
Visual (VMC) · Day
Wind
130° at 10 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
99 °F, dew point 61 °F
Altimeter
29.94 inHg
Observed at
SAT, 20 nm away

FAA reports on this event · 1

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