CEN12LA254

NTSB accident investigation · Alvarez Marvin R Rans S-6S · New Braunfels, TX · April 22, 2012

Accident · No injuriesLimited investigationFinal report
Date
April 22, 2012, 11:30 local (16:30 UTC)
Place
New Braunfels, TX
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N137ABAlvarez Marvin R Rans S-6S
Defining event
Takeoff: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed · report October 9, 2012
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA Flight Standards District Office
FAA report
20120422007769A
Case key
83469

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

On this page

Probable cause

The non-certificated pilot's loss of airplane control during takeoff.

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.

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

Although the non-certificated pilot said that there was no intention for flight and that he was going to make a high-speed taxi, tape recordings from the air traffic control tower revealed that the pilot called the tower and said he was ready to taxi; he did not request a high-speed taxi. The controller gave the pilot instructions to runway 17 and to hold short of runway 13; the pilot then reported that he was holding short of runway 13. The controller instructed him to cross runway 13, and cleared the airplane for takeoff on runway 17. The pilot did not acknowledge this clearance but proceeded down runway 17. The controller observed the airplane become airborne momentarily before impacting terrain.

Factual narrative

On April 22, 2012, about 1130 central daylight time, a Rans S-6S Coyote II, N137AB, impacted terrain during takeoff at New Braunfels Municipal Airport (KBAZ), New Braunfels, Texas. The pilot and passenger were not injured. The airplane was substantially damaged. The airplane was registered to a private individual and operated by the pilot under the provisions of 14 Code of Federal Regulations (CFR) Part 91 as a personal flight. Visual meteorological conditions (VMC) prevailed at the time of the accident, and no flight plan had been filed. The flight originating, and was destined for Kitty Hawk Airport (K0T7), Allen, Texas. The pilot was issued a student pilot certificate in 2000. He applied for but was denied a medical certificate in 2007. The airplane did not have a current Certificate of Airworthiness. The pilot told a Federal Aviation Administration (FAA) inspector that there was no intention for flight. However, according to an e-mail from the FAA inspector who listened to the KBAZ control tower tape recording, the pilot reported that he was ready to taxi. The controller gave him taxi instructions to (the active) runway 17, but was told to hold short of runway 13. The controller also gave the pilot the altimeter setting and wind information. Shortly thereafter, the pilot told the controller that he was holding short of runway 13. The controller instructed him to cross runway, 13 and that he was cleared for takeoff on runway 17. The pilot did not acknowedge this clearance. At no time did the pilot request a high speed taxi. The controller observed the airplane proceed down the runway, become airborne momentarily, then impact terrain.

Aircraft

Registration
N137AB
Reported as
Alvarez Marvin R Rans S-6S (COYOTE II)
Category
Airplane, amateur-built
Serial number
09041605
Engine
Rotax, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Thomas E. Anderson
Registered owner
Thomas E. Anderson
Airworthiness certificate
Special, Experimental (Special)
Departed
KBAZ · New Braunfels, TX
Destination
K0T7 · Allen, TX
Airport
KBAZ · New Braunfels Municipal, 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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
64
Seat
Left
Role
Student pilot
Age
39
Injuries
None
Certificate
Student
Medical
Class 3, With waivers/limitations
Seat
Right
Flight hours
14 total

Weather

Conditions
Visual (VMC) · Day

Docket · 4

The files NTSB released with the investigation on August 2, 2012, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.3 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.

Other investigations on N137AB · 1

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