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

September 9, 1998 · Glasflugel H 301 B Libelle H 301 B LI · N2200

Tucson, AZ

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
September 9, 1998
Injury Outcomes
No injuries (1 uninjured)
Location
Tucson, AZ
Aircraft
Glasflugel H 301 B Libelle H 301 B LI
Tail Number
N2200
Injuries
None
Aircraft Damage
Substantial
NTSB Number
LAX98LA289

The pilot reported that the glider was stored disassembled on a trailer. Upon arrival at the gliderport, he proceeded to reassemble the glider. He assembled the wings first, and then connected the aileron push rods, which are secured with ball lock safety pins. The pilot stated that he then inserted the pins in the left and right aileron push rod attach fittings and moved the control stick to check that the ailerons were properly engaged. No further discrepancies were noted with the reassembly of the glider or the preflight inspection. The pilot reported that the first takeoff was aborted due to a lack of directional control, which at the time he attributed to dust devils in the vicinity. On the second takeoff and initial climbout no discrepancies were noted until he reached 100 feet agl, when the pilot had difficulty maintaining straight and level flight. As the tow plane made a turn to the left, the glider turned to the right. The pilot released the glider from the tow plane and applied full left rudder and left aileron to stop the roll. The pilot stated that the glider maintained a 10-degree right wing down configuration. Upon touchdown the right wing collided with a brush and the glider ground looped. The glider was inspected after the accident and it was noted that the right aileron attach pin was inserted into the female part of the junction, but not through the ball joint of the aileron push rod. The push rod would have been lying in the fitting, but would not have been engaged. The pilot further attributed the lack of directional control on the first attempted takeoff to a lack of aileron control that he did not recognize at the time. No further discrepancies were noted with the glider.

NTSB Probable Cause

Failure of the pilot to properly connect the aileron controls during reassembly of the glider, and, his inadequate preflight inspection of the glider.

Full Narrative

On September 9, 1998, at 1310 hours mountain standard time, a Glasflugel H 301 B Libelle glider, N2200, experienced an aileron malfunction during takeoff while still attached to the tow aircraft. After being released, the glider landed short of the runway and struck a bush at the private El Tiro gliderport, Tucson, Arizona. The glider, operated under the provisions of 14 CFR Part 91, sustained substantial damage. The commercial glider pilot/owner was not injured. Visual meteorological conditions existed for the local area personal flight and no flight plan was filed. The pilot stated that the glider was stored disassembled in a trailer. When he arrived at the gliderport, he proceeded to reassemble the glider. The wings were assembled first, and then the aileron push rods with ball lock safety pins were connected. The pilot stated that he inserted the pins in the left and right aileron push rod attach fittings and moved the control stick to check that the ailerons were properly engaged. The pilot reported that he completed the assembly of the glider with no discrepancies noted. A preflight inspection was conducted with no anomalies noted. On the first takeoff attempt, directional control was unable to be established, and the takeoff was aborted. The pilot attributed the lack of directional control to dust devils in the vicinity. He reported that the second takeoff attempt was made up to 100 feet above ground level (agl) with no discrepancies. The pilot stated that he noted difficulty in maintaining a wings level attitude and the aircraft was turning to the right. He reported that the tow plane made a standard left turn at 200 feet agl, but the glider did not follow. The pilot stated that the glider started a nose down right-hand turn and he had to release the glider from the tow plane. The pilot stated that he applied full left aileron, which stopped the roll to the right, but the aircraft did not go to straight and level flight. He applied full left rudder and continued left aileron inputs and the glider maintained a 10-degree right wing down attitude. He attempted to make an intersection landing at the private strip, but due to insufficient altitude was unable to do so. The pilot stated that when the glider contacted the ground, with the right wing low condition, the right wing collided with a brush and ground looped. The pilot inspected the aircraft and noted that the right aileron attach pin was inserted in the female part of the junction, but not through the ball joint of the aileron push rod. He stated that the push rod would have been lying in the fitting but would not have been engaged. The pilot and the line chief, who was holding the aileron, "noted the lack of response to a pull on the push rod (Aileron up). The left aileron was properly connected and checked out in the positive control check." He further attributed the lack of directional control on the first attempted takeoff to a lack of aileron control, which he did not recognize at the time. No further discrepancies were noted.

Flight

Event TypeAccident
Event Time13:10 MST
Nearest AirportEl Tiro - Private Glider (0nm)
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftGlasflugel H 301 B Libelle H 301 B LI
Tail NumberN2200
Aircraft CategoryGli
DamageSubstantial
Operating RulePart 91
Engine TypeUnknown
Engine DetailsUnknown
Seats1

People & Injuries

Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 69 · Second Class

Conditions

ConditionsVMC
LightDaylight
Wind3 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point55
Altimeter29.00 inHg
Observation Time19:56
Weather SourceWFAC

Appendix: Source Data