FTW95LA326

NTSB accident investigation · Glasflugel Standard Libelle · Red River, NM · July 24, 1995

Accident · No injuriesLimited investigationFinal report
Date
July 24, 1995, 14:20 local (20:20 UTC)
Place
Red River, NM
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N2972Glasflugel Standard Libelle
Weather
Visual (VMC) · Day
Status
Completed · report December 19, 1995
Report
Approved by Office Director
FAA report
19950724022779A
Case key
19522

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

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Probable cause

The pilot's lack of compensation for the tailwind and his ensuing failure to attain the proper touchdown point. Factors were the lack of thermal lift and the tailwind.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

In flight encounter with weatherManeuvering
Weather condition - no thermal liftFactor
Precautionary landing - initiatedPilot in command
OverrunLanding - roll
Weather condition - tailwindFactor
Compensation for wind conditions - not performedPilot in commandCause
Proper touchdown point - not attainedPilot in commandCause
Ground loop/swerve - intentionalPilot in command

Analysis

While soaring over a canyon, the glider encountered an 'atmospheric condition of sink' and the pilot was unable to locate any thermal activity. He decided to 'land out in difficult terrain' and selected the 'single' available site, a meadow 'less than 1/4 mile' long. 'Canyon narrowness' required a 'steep 180 degree turn to final with 5 to 8 knots extra approach speed.' 'Float carried the glider' to a touchdown at the meadow's 'mid-point' and the pilot initiated a ground loop 'to stop.' After exiting the glider, the pilot realized he had landed with a tailwind of '5+ knots.'

Factual narrative

On July 24, 1995, at 1420 mountain daylight time, a Glasflugel Standard Libelle glider, N2972, was substantially damaged during landing near Red River, New Mexico. The private pilot/operator was not injured. The glider departed Taos, New Mexico, at 1215 for the personal flight conducted under Title 14 CFR Part 91. Visual meteorological conditions prevailed and no flight plan was filed.

The following information was reported by the pilot in the attached Pilot/Operator Report. The glider was "over canyon near Red River" when an "atmospheric condition of sink" was encountered. The pilot "explored for," but was unable to locate, any "lift/thermal activity." A "decision to plan for land out in difficult terrain was made" and the pilot selected the "single" available landing site, a "horse meadow" with a "usable" landing length of "less than 1/4 mile."

"Canyon narrowness" required a "steep 180 degree turn to final with 5 to 8 knots extra approach speed." "Float carried the glider to mid-point of meadow" and a "ground loop to left" was "initiated on touchdown to stop." After exiting the glider, the pilot noticed a "breeze 5+ knots up valley" which had resulted in a "tailwind component" during the landing. A Federal Aviation Administration inspector examined the glider and reported the empennage was partially severed.

Aircraft

Registration
N2972
Reported as
Glasflugel Standard Libelle (STANDARD L)
Category
Glider
Serial number
282
Airframe hours
1,470
Engine
unknown
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
David A. Paul
Airworthiness certificate
Standard, Normal
Last inspection
Annual · April 15, 1995 · 24 hours before
Departed
SKX · Taos, 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
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Center
Flight hours
535 total · 110 in this make and model · 472 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
250° at 10 knots
Visibility
20 statute miles
Lowest ceiling
None
Temperature
84 °F

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.