FTW03FA212

NTSB accident investigation · Cessna 172L · New Braunfels, TX · September 6, 2003

Accident · FatalField investigationFinal report
Date
September 6, 2003, 17:11 local (22:11 UTC)
Place
New Braunfels, TX
Injuries
2 fatal, 1 serious
Damage
Destroyed
Phase of flight
Takeoff
Aircraft
N7632GCessna 172L
Weather
Visual (VMC) · Day
Status
Completed · report July 29, 2004
Report
Approved by Office Director
Parties
Textron Lycoming, FAA Flight Standards District Office, Cessna Aircraft Company
FAA report
20030906022989A
Case key
57872

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 airspeed sufficient for flight resulting in an inadvertent stall/spin during takeoff.

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 flightTakeoff
Airspeed - not maintainedPilot in commandCause
Stall/spin - inadvertentPilot in command
In flight collision with terrain/waterTakeoff
Terrain condition - ground

Analysis

During takeoff, the airplane entered an extremely steep climb, stalled, and impacted the terrain in a nose low, left wing low attitude. According to local authorities, the three occupants of the airplane were on a reported weekend hunting trip the night before the accident flight. Ticket stubs from a bus company indicated the three individuals departed approximately 0300 on a bus and then arrived at a family members residence approximately 0630. After approximately six hours of rest, the 200-hour pilot called the flight school and reserved the airplane for an unplanned flight. Witnesses observed the airplane taxi to runway 17. Runway 35 had been the active runway that was used during an airshow that just ended. During takeoff, the airplane lifted off "into an extremely steep climb," and appearing "kind of tippy." The airplane started a turn to the left, "not very high off the ground with the wings dipping back and forth." One witness stated, "[the] pilot appeared to attempt a recovery, but seemed to overcorrect and pull up too fast." The airplane "pitched downward towards the left and entered a spin towards the right" and impacted the ground. Flight control continuity was established throughout the airplane at the accident site. No mechanical anomalies were noted with the engine or airframe. No radio headsets, charts, flight gear, or logbooks were located within the aircraft wreckage. The airplane was found to be within weight and balance limits.

Factual narrative

History of flight

On September 6, 2003, approximately 1711 central daylight time, a Cessna 172L single-engine airplane, N7632G, was destroyed when it impacted terrain following a loss of control during takeoff from the New Braunfels Municipal Airport (BAZ), near New Braunfels, Texas. The airplane was registered to MRTW Flyers, Inc., of Spring Branch, Texas, and operated by Southern Wings, Inc., of New Braunfels, Texas. The private pilot and one passenger sustained fatal injuries and one passenger sustained serious injuries. Visual meteorological conditions prevailed, and a flight plan was not filed for the 14 Code of Federal Regulations Par 91 personal flight. The cross-country flight was originating at the time of the accident and was destined for Killeen, Texas.

According to local authorities, the three occupants of the airplane were in Laredo, Texas, the night before the accident on a reported weekend hunting trip. Three ticket stubs from the Greyhound Lines, Inc., found in one of the occupants clothing, indicated the three individuals departed from Laredo approximately 0300 on a bus, destined for San Antonio. Local authorities reported that the three individuals arrived at a family member's residence in San Antonio, approximately 0630. The pilot reportedly slept until 1330, and approximately 1400, he called Southern Wings Flight Training Center, at BAZ, and reserved the accident airplane for the rest of the day. Approximately 1700, the three occupants arrived at BAZ for the flight.

Prior to the accident flight, a company representative from the Southern Wings Flight Training Center spoke with the pilot. The pilot informed the company representative that he was intending to fly to Killeen, Texas, drop his friends off and return. The company representative asked the pilot if he needed any more fuel and if he worked a weight and balance. The company representative informed the pilot that there was approximately 2.2 hours of fuel onboard the aircraft. During the conversation, the pilot stated that his two passengers weighed 185 pounds each, and would use the self-serve fuel pump himself to refuel the airplane.

Fuel records from the self-serve fuel pump at BAZ indicated that 12.8 gallons of 100 low lead aviation fuel was purchased for the accident aircraft.

A local airshow had been scheduled at the airport for September 6, and 7. The airshow activities were concluding for the day at the time of the accident. Airshow personnel reported that runway 35 was the active runway throughout the day for the airshow.

Multiple witnesses observed the airplane taxi to runway 17 at the end of the airshow. The Safety Board obtained statements from witnesses located on the east ramp at BAZ where the airshow event was being conducted.

The first witness observed the airplane depart from runway 17, and the airplane appeared to be "kind of tippy." The airplane started a turn to the left, "not very high off the ground with the wings dipping back and forth." As the airplane started turning out over the field, it "did a complete 360-degree barrel roll."

A second witness observed the airplane takeoff at an approximate angle of 70 degrees. The witness stated "[the] pilot appeared to attempt a recovery, but seemed to overcorrect and pull up too fast." The airplane "pitched downward towards the left and entered a spin towards the right."

A third witness located in an ultralight holding short of runway 35, observed the airplane liftoff "into an extremely steep climb." There never "appeared to be any attempt of a recovery from the stall. The [air]plane did a left roll and went down." The witness also stated it "looked like the left wingtip and nose hit at about the same time."

Personnel information

The pilot was issued a private pilot's certificate with an airplane single-engine land rating on January 14, 2003, and an instrument airplane rating on August 7, 2003. The pilot was issued a second-class medical certificate on August 8, 2003, with the limitation of "MUST WEAR CORRECTIVE LENSES." The private pilot's total flight time was reported to the NTSB investigator-in-charge (IIC) to be approximately 200 hours. The pilot's logbook was not located.

The passenger in the front right seat applied for a student pilot's certificate but was denied do to medical reasons. The passenger in the back seat of the airplane held a student pilot's certificate and second-class medial certificate, issued on July 11, 2002.

During a telephone interview conducted by the IIC, the passenger, who was sitting in the back seat, stated that the accident flight was his first flight with the pilot. The passenger also stated that he "had heard the pilot was a very safe pilot."

Aircraft information

The 1971-model Cessna 172L airplane, serial number 17259332, was a high wing semimonocoque design airplane, with a fixed landing gear. The airplane was configured to carry a maximum of four occupants. The airplane was powered by a normally aspirated, direct drive, air-cooled, horizontally opposed, carbureted, four-cylinder Lycoming O-320-E2D engine, rated at 150 horsepower. The engine was equipped with a two-bladed fixed pitch McCauley propeller. The airplane was equipped with shoulder harnesses and lap belt restraints for both front seats. The rear seat was equipped with lap belt restraints.

According to the aircraft logbooks, the airplane's most recent annual inspection was completed on March 5, 2003, at a total airframe time of 3,557.0 hours. The most recent 100-hour inspection was on August 4, 2003, with an airframe total time of 3,751.1 hours, and an engine total time of 1,212.1 hours since major overhaul. The airplane had accumulated 72.24 hours since the 100-hour inspection. No open maintenance discrepancies were noted within the aircraft logbooks.

According to the Federal Aviation Administration approved Cessna 172 owners manual, in the most forward center of gravity, power off, and maximum gross weight configuration, the stall speed with flaps retracted with a zero degree bank is 57 mph. With the flaps extended to 10 degrees, the stall speed is 52 mph. With the flaps extended to 40 degrees, the stall speed is 49 mph.

Meteorological information

At 1651, the BAZ automated surface observing system (ASOS), reported the wind from 050 degrees at 5 knots, visibility 10 statue miles, few clouds at 7,000 feet agl, temperature 91 degrees Fahrenheit, dew point 61 degrees Fahrenheit, and an altimeter setting of 29.95 inches of Mercury.

Aerodrome information

BAZ is located four miles east of New Braunfels, Texas, with a field elevation of 651 feet msl. The non-towered airport features two asphalt runways: runway 17/35 and runway 13/31. Runway 17/35 is a 5,364-foot long by 100-foot wide asphalt runway, and runway 13/31 is a 5,352-foot long by 100-foot wide asphalt runway.

Wreckage and impact information

The accident site was located near the departure end of the runway 17, approximately 499 feet left of the runway centerline. The Global Positioning System (GPS) coordinates recorded at the accident site using a hand held GPS unit were 29 degrees 91.687' minutes north latitude and 098 degrees 02.528' minutes west longitude, at an elevation of 651 feet msl. The airplane impacted soft terrain on a magnetic heading of 060 degrees, and came to rest upright on a heading of 040 degrees, approximately 25 feet to the right of the point of impact. The wreckage debris distribution area remained within an 85-foot radius to the main wreckage.

The initial ground scar measured approximately 14 feet in length and contained portions of white and red paint chips and plastic. A red navigational light lens was located adjacent to the ground scar. A crater, 2-1/2 feet wide by 2 feet long was located 8 feet from the end of the initial ground scar. A second ground scar, parallel to the left wing measured approximately 12 feet

Aircraft

Registration
N7632G
Reported as
Cessna 172L
Category
Airplane
Serial number
17259332
Airframe hours
3,751.1
Engine
Lycoming O-320-E2D, 150 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Operator
Southern Wings, Inc.
Registered owner
MRTW Flyings Inc.
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · August 4, 2003 · 72.24 hours before
Departed
BAZ · New Braunfels, TX
Destination
ILE · Killeen, TX
Airport
BAZ · New Braunfels Municipal Airpor, runway 17, 5,364 × 100 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

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
19
Injuries
Serious
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Last flight review
August 7, 2003
Seat
Left
Flight hours
200 total

Weather

Conditions
Visual (VMC) · Day
Wind
50° at 5 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
91 °F, dew point 61 °F
Altimeter
29.95 inHg
Observed at
BAZ

FAA reports on this event · 1

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