WPR25LA015

NTSB accident investigation · Glasflugel Standard Libelle · Moriarty, NM · October 11, 2024

Accident · No injuriesClass 4 · LimitedFinal report
Date
October 11, 2024, 14:10 local (20:10 UTC)
Place
Moriarty, NM
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N41FLGlasflugel Standard Libelle
Defining event
Landing: Landing area undershoot
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
FAA report
20241011021319A
Case key
195318

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 failure to maintain an adequate glidepath, which resulted in the glider landing on rough terrain short of the runway.

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.

Performance/control parameters: altitudeAircraft › Aircraft oper/perf/capability · Not attained/maintainedGlasflugel STANDARD LIBELLE: 1 caseAll aircraft: 1,310 casesProbable cause
Performance/control parameters: descent/approach/glide pathAircraft › Aircraft oper/perf/capability · Not attained/maintainedGlasflugel STANDARD LIBELLE: 1 caseAll aircraft: 809 casesProbable cause
Terrain: rough terrainEnvironmental issues › Physical environment · Contributed to outcomeGlasflugel STANDARD LIBELLE: 1 caseAll aircraft: 442 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 pilot of the glider reported that, while on the downwind leg of the airport traffic pattern, he partially deployed the flight spoilers and extended his downwind leg as the glider was too high. He misjudged his distance to the runway during this time and the glider lost more altitude than the pilot had anticipated. The pilot flared during final; however, the glider impacted rough terrain short of the runway threshold. The glider sustained substantial damage to the fuselage and empennage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the glider that would have precluded normal operation.

Aircraft

Registration
N41FL
Reported as
Glasflugel Standard Libelle
Category
Glider
Serial number
292
Built
1972
Airframe hours
730.3
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · January 1, 2023
Departed
0E0 · Moriarty, NM
Airport
0E0 · Moriarty Municipal Airport, runway 26, 7,702 × 75 ft, asphalt
Equipment
Data recorder, Electronic flight bag or handheld device

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
69
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3
Last flight review
August 25, 2024
Seat
Single
Restraint
4-point
Flight hours
1,131 total · 67 in this make and model · 1,021 as pilot in command · 4 in the last 90 days · 1 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
310° at 14 knots, gusting 22
Visibility
10 statute miles
Lowest ceiling
None
Temperature
79 °F, dew point 18 °F
Altimeter
30.40 inHg
Turbulence
Light
Observed at
KCQC, 17 nm away
METAR
KCQC 111953Z AUTO 31014G22KT 10SM CLR 26/M08 A3040 RMK AO2 SLP200 T02561083

Docket · 2

The files NTSB released with the investigation on April 8, 2025, on NTSB’s docket system: statements, records, photos and specialists’ reports. 4.4 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.