CEN09LA009

NTSB accident investigation · Sproul 72K-TET · Rio Rancho, NM · October 10, 2008

Accident · FatalLimited investigationFinal report
Date
October 10, 2008, 07:53 local (13:53 UTC)
Place
Rio Rancho, NM
Injuries
1 fatal, 1 serious
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N72KXSproul 72K-TET
Defining event
Maneuvering-low-alt flying: Low altitude operation/event
Weather
Visual (VMC) · Day
Status
Completed · report August 13, 2009
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA Flight Standards Districxt Office
FAA report
20081010852639A
Case key
69262

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 pilot's failure to maintain clearance from the power lines and the failure of either pilot to take any corrective action to avoid the collision.

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.

Object/animal/substance: wireEnvironmental issues › Physical environment · Awareness of conditionSproul Keith A 72K-TET: 1 caseAll aircraft: 588 casesProbable cause
Action: lack of actionPersonnel issues › Action/decision · Flight crewSproul Keith A 72K-TET: 1 caseAll aircraft: 792 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 pilots were participating in a balloon festival. A witness stated that the balloon was traveling northeast between 15 and 20 knots. The wind was gusting between 20 and 25 knots. The witness said, "As the balloon proceeded towards me...I noticed that there was no heat given to the envelope. [As the balloon flew over a ditch and upward slope, it] encountered an updraft from the low level winds causing this accident." Photographs taken by witnesses show the balloon approaching power lines. Neither pilot had their hands on the burner control. When the balloon struck the power lines, the suspension cables were partially severed. The fuel line was completely severed and began spewing liquid propane, and the basket caught fire. The occupants and part of the basket fell to the ground. The envelope drifted off and was later recovered some 7 miles away from the power lines. The recorded winds at the time of the accident were from 130 degrees at 4 knots.

Factual narrative

On October 10, 2008 at 0753 mountain daylight time, a Sproul 72K-TET, N72KX, piloted by a balloon-rated pilot, was destroyed when it struck power lines and impacted terrain in Rio Rancho, New Mexico. Visual meteorological conditions prevailed at the time of the accident. The personal flight was being conducted under the provisions of Title 14 CFR Part 91 without a flight plan. The pilot was fatally injured, and the owner/pilot was seriously injured. The local flight originated in Albuquerque approximately 0700. The pilot and the owner/pilot were participating in the Albuquerque International Balloon Festival. The owner/pilot's injuries precluded him from submitting an accident report until March 5, 2009. According to his report, he had no memory of the accident. In a telephone interview, he said he allowed the pilot to fly the balloon so he could acquire more experience in flying this type of experimental balloon. He indicated that the pilot had flown the balloon on four different occasions, including the accident flight, and had acquired 4 hours of flight time. One witness to the preflight procedures and the accident stated that the owner/pilot indicated that the pilot would be acting as pilot-in-command for this flight. Several witnesses observed the pilot inflating the balloon before the flight and operating the burners during the flight. One witness also indicated that the pilot was registered at the event as a pilot on this balloon. Twelve witness statements were collected by various law enforcement agencies. One witness stated the balloon was traveling northeast between 15 and 20 knots. The wind was gusting between 20 and 25 knots. "As the balloon proceeded towards me...I noticed that there was no heat given to the envelope. [As the balloon flew over a ditch/slope, it] encountered an updraft from the low level winds causing this accident." Another witness, who noted the balloon fiesta was conducting a mass ascension of “Special Shape balloons,” was critical of balloon fiesta officials for allowing pilots to take off in the wind conditions that existed. He said that since he was a “contract balloon, [he] felt an obligation to fly as part of the fiesta. He said that at 0615, there was a pilot briefing that included a “detailed weather briefing.” At that time, surface winds were less than 10 knot but “winds aloft were expected to increase during the day.” He took off at 0725 and flew at 6,800 feet on a heading approximately 340 to 350 degrees. As he flew over Rio Rancho, he observed other balloons making “drag landings (dragging to a stop) of approximately 20 to 30 feet.” Surface winds were easterly, between 080 and 090 degrees. He observed another balloon approximately 1 mile in front of him make a landing that was “not affected by the high surface winds.” He landed between Santa Ana Casino and Jackalope on Highway 550, about a mile from the site of the fatal accident. This witness wrote: "Once the special shape balloons had left balloonfiesta park, the competition would begin for the other 600+ registered balloons. I could not believe that the balloon fiesta officials had not cancelled their competition. The surface winds that would be encountered during the landing phase of the flight were obviously in excess of the FAA waiver. It is my opinion that the officials of the balloon fiesta acted in a reckless manner in knowingly allowing balloons to fly when the surface winds were at a dangerous speed within the landing areas. It is further my opinion that the balloon fiesta officials knowingly caused the destruction of property and life." The following winds were recorded at Albuquerque International Sunport: At 0556 local, 130 degrees at 6 knots At 0656 local, 120 degrees at 4 knots At 0756 local, 130 degrees at 4 knots At 0856 local, 180 degrees at 7 knots Photographs taken by witnesses showed the balloon approaching the power lines. Neither pilot had their hands on the burner. When the balloon struck the power lines, the suspension cables were partially severed. The fuel line was completely severed and began spewing liquid propane. The basket caught fire and the occupants fell to the ground, as did part of the basket. The envelope drifted off and was later recovered some 7 miles away. Title 14 Code of Federal Regulations 1.1, “Definitions and Abbreviations,” states that the pilot-in-command means the person who (1) Has final authority and responsibility for the operation and safety of the flight; (2) Has been designated as pilot in command before or during the flight; and (3) Holds the appropriate category, class, and type rating, if appropriate, for the conduct of the flight. FAR 91.103, "Preflight action." states (in part): "Each pilot in command shall, before beginning a flight, become familiar with all available information concerning that flight." FAR 91.13, "Careless or reckless operation," states (in part): "(a) Aircraft operations for the purpose of air navigation. No person may operate an aircraft in a careless or reckless manner so as to endanger the life or property of another."

Aircraft

Registration
N72KX
Reported as
Sproul 72K-TET
Category
Balloon, amateur-built
Serial number
S-003
Airframe hours
92
Damage
Destroyed
Fire
Both
Flight
Personal · Part 91
Operator
Keith A. Sproul
Registered owner
Keith A. Sproul
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · October 1, 2007
Departed
NONE · Albuquerque, NM
Destination
NONE · Albuquerque, NM

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
49
Injuries
Fatal
Certificates
Commercial, Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Flight hours
610 total · 4 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
130° at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
55 °F, dew point 37 °F
Altimeter
29.93 inHg
Observed at
ABQ

Docket · 20

The files NTSB released with the investigation on May 6, 2009, on NTSB’s docket system: statements, records, photos and specialists’ reports. 21.9 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 N72KX · 1

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