CEN24LA133

NTSB accident investigation · Schweizer SGS 2-33A · Falcon, CO · March 12, 2024

Accident · Minor injuriesClass 4 · LimitedFinal report
Date
March 12, 2024, 09:40 local (15:40 UTC)
Place
Falcon, CO
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N2905HSchweizer SGS 2-33A
Defining event
Takeoff: Aerodynamic stall/spin
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Central Region
Parties
FAA
FAA report
20240312003019A
Case key
193927

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 flight instructor’s failure to maintain control during takeoff which resulted in an aerodynamic stall and an impact with terrain.

Findings · 4

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.

Use of equip/info: use of equip/systemPersonnel issues › Task performance · Instructor/check pilotSchweizer SGS 2-33A: 1 caseAll aircraft: 1,391 casesProbable cause
Performance/control parameters: angle of attackAircraft › Aircraft oper/perf/capability · Not attained/maintainedSchweizer SGS 2-33A: 1 caseAll aircraft: 990 cases
Wind: crosswindEnvironmental issues › Conditions/weather/phenomena · Ability to respond/compensateSchweizer SGS 2-33A: 1 caseAll aircraft: 1,008 casesProbable cause
Wind: gustsEnvironmental issues › Conditions/weather/phenomena · Ability to respond/compensateSchweizer SGS 2-33A: 4 casesAll aircraft: 1,199 cases

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 flight instructor stated that during the ground launch he rotated the glider and then accelerated in ground effect before he pulled aft stick to accelerate on the launch arc. He then applied right stick correction for runway alignment after which a gust of wind lifted the right wing. The flight instructor was unable to counter the left roll with flight control inputs and the glider stalled. The tow rope, once side loaded, automatically disconnected as designed. The left wing impacted the ground which resulted in substantial damage to the left wing and empennage. The flight instructor stated that there were no mechanical malfunctions or failures that would have precluded normal glider operation.

Aircraft

Registration
N2905H
Reported as
Schweizer SGS 2-33A
Category
Glider
Serial number
545
Built
1979
Airframe hours
8,200.2
Damage
Substantial damage
Flight
Instructional · Part 91
Registered owner
High Flights Soaring Club
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · August 21, 2023
Departed
KFLY · Falcon, CO
Airport
FLY · Meadow Lake, runway 16, 5,001 × 200 ft, grass/turf

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
59
Injuries
Minor
Certificates
Flight instructor, Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane, Helicopter
Medical
Class 1, With waivers/limitations
Last flight review
December 19, 2023
Seat
Rear
Restraint
4-point
Flight hours
4,269 total · 127 in this make and model · 3,499 as pilot in command · 14 in the last 90 days · 1 in the last 30 days · 0 in the last 24 hours
Role
Student pilot
Age
14
Injuries
Minor
Seat
Front
Restraint
4-point
Flight hours
3 total · 3 in this make and model · 0 as pilot in command · 1 in the last 90 days · 1 in the last 30 days · 0 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
280° at 6 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
46 °F, dew point 19 °F
Altimeter
29.99 inHg
Observed at
KFLY
METAR
KFLY 121515Z AUTO 28006KT 10 SM CLR 08/M07 A2999 RMK AO2 T00761067=

Docket · 3

The files NTSB released with the investigation on April 19, 2024, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.5 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.