Premium research interface

The modern interface for aviation safety intelligence.

Search investigations, review source evidence, monitor watched reports, and trace long-term patterns from one calm, data-first workspace.

63k+
Reports indexed
1940-2026
Coverage
Recent
Last data refresh
Featured Report

Loading…

Loading featured report…

Loading…
Open Report

Safety trends by operating rule

Track fatal and non-fatal accident patterns across Part 91, Part 135, and Part 121 operations.

Loading trend charts…

Browse the aviation graph

Move quickly by aircraft, airport, operator, and time with indexes built for research, not wandering.

Last Data Update

By Decade

By Month

Aircraft Manufacturer

More manufacturers

Airports

More airports

Operators

More operators

About

Aviation safety reports, made easier to study

NTSB Reports is an independent research and search tool for public aviation accident and incident records. It brings NTSB aviation reports, structured fields, docket files, extracted figures, photos, videos, and update history into one searchable interface.

The goal is practical safety education: make it faster to find relevant investigations, compare similar events, review factual records, and understand the evidence behind probable-cause and preliminary reports.

The investigative work and source records belong to the National Transportation Safety Board and the published investigation record. This site is not affiliated with or endorsed by the NTSB.

FAQs

NTSB Report

October 4, 1999 · Lindstrand LBL-105G · GBWOK

Mcalester, OK

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
October 4, 1999
Injury Outcomes
2 injuries (1 serious injury, 1 minor injury)
Location
Mcalester, OK
Aircraft
Lindstrand LBL-105G
Tail Number
GBWOK
Injuries
Serious
Aircraft Damage
Substantial
NTSB Number
FTW00LA004

The balloon was participating in a long distance race and had been airborne for approximately 31.5 hours. The pilot had been aware of thunderstorms in the balloon's flight path for about 6.5 hours and had been attempting to track away from the storms, but was unable to do so. According to the pilot, the balloon was in level flight at 7,000 feet, above a cloud layer, when he initiated a precautionary landing to avoid an encounter with the thunderstorms. The balloon broke out at 1,280 feet agl in dark night light conditions. The balloon landed hard and then became airborne again reaching a height of 80 feet. During the second ground contact, the pilot was ejected from the basket, and subsequently, the basket 'dragged' over the pilot and then came to a stop. The pilot reported that the winds were from 360 degrees at 20 knots gusting to 22 knots. The pilot stated that 'improved met[eorological] information would have allowed a night landing to be made at 3 knots earlier rather than at 20 knots.'

NTSB Probable Cause

The pilot's continued flight into known adverse weather, which resulted in a hard landing. Factors were the thunderstorms, dark night light conditions, and the high winds.

Full Narrative

On October 4, 1999, at 0500 central daylight time, a Linstrand LBL-105G gas balloon, British registration G-BWOK, landed hard during a precautionary landing near McAlester, Oklahoma. The balloon, which was registered to and operated by Linstrand Balloons Ltd., Shropshire, England, was not damaged. The pilot sustained serious injuries and the pilot-rated passenger received minor injuries. Dark night visual meteorological conditions prevailed for the 14 Code of Federal Regulations Part 91 competition flight and a flight plan was not filed. The balloon was participating in the "Gordon Bennet Gas Balloon Race" and departed from Albuquerque, New Mexico, on October 2, 1999, at 2130. According to the pilot, on October 3, 2000, at 2230, the balloon was level at 11,000 feet, near Oklahoma City, Oklahoma, when he noticed lightening flashes to the east and to the south. He contacted Oklahoma City Approach Control and the Race Command Center, both of which reported no significant weather near the balloon's location. He then used his cell phone to contact his "own met forecaster" who confirmed a "significant storm" to the south and east of the balloon's position. The pilot initiated a descent to 7,000 feet and attempted to track away from the storms, but due to easterly winds was unable to do so. Approximately 6.5 hours had passed when the pilot initiated a precautionary landing. The balloon descended through a cloud layer and broke out at 1,280 feet agl. The terrain was a "largely wooded area," near a major road and a railway. The pilot reported that at 50 feet agl, he "released the trail rope and pulled one of the pop-top activation lines. After heavy contact with the ground, the balloon took off again and rose to an estimated height of 80 ft." He then "pulled the other pop-top activation line," and as he was pulling the line, ground contact was made a second time. The basket "turned over," the pilot was ejected from the basket, and the basket "dragged" over the pilot and came to a stop. According to the pilot, he sustained a broken back as a result of being ejected from the basket. He added that the "corner of the basket was cracked." There was no other damage to the balloon. At 0653, the MacAlester Flight Service Station (located 10 miles north of the accident site) reported that the winds were from 010 degrees at 14 knots gusting to 20 knots. The pilot reported that, at the time of the accident, the winds were from 360 degrees at 20 knots gusting to 22 knots. In the Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1/2), in the section titled Recommendation (How Could This Accident Have Been Prevented), the pilot stated that "improved met[eorological] information would have allowed a night landing to be made at 3 knots earlier rather than at 20 knots."

Flight

Event TypeAccident
Event Time05:00 CDT
Nearest Airport0nm
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftLindstrand LBL-105G
Tail NumberGBWOK
Aircraft CategoryBall
DamageSubstantial
Operating RulePart 91
Engine TypeUnknown
Engine DetailsUnknown
Seats2

People & Injuries

Injury Summary2 injuries (1 serious injury, 1 minor injury)
Fatal0
Serious1
Minor1
Uninjured0
Total2
Crew 1Age 37 · Unknown

Conditions

ConditionsVMC
LightDark Night
Wind360° @ 20 kt, gusting 22 kt
Visibility5 sm
CeilingOvercast 1300 ft
Temperature / Dew Point0 C / 0 C
Altimeter30.00 inHg
Weather SourcePILO

Appendix: Source Data