ERA14CA088

NTSB accident investigation · Let L 23 Super Blanik · Clermont, FL · September 15, 2013

Accident · No injuriesData collectionFinal report
Date
September 15, 2013, 10:00 local (15:00 UTC)
Place
Clermont, FL
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N321BALet L 23 Super Blanik
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report April 1, 2014
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
Case key
88644

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 student pilot's failure to maintain directional control during the landing roll.

Findings · 2

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: aircraft controlPersonnel issues › Task performance · Student/instructed pilotLet L-23 SUPER BLANIK: 10 casesAll aircraft: 9,295 casesProbable cause
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedLet L-23 SUPER BLANIK: 4 casesAll aircraft: 3,958 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 student pilot was landing the glider on runway 36, a 3,000-foot-long, 200-foot-wide, turf runway. During the landing roll, the glider veered off the right side of the runway and struck a gazebo, which resulted in substantial damage to glider's right wing and fuselage. The student pilot did not reside in the United States and subsequently returned to his country of residence. The accident was reported to the NTSB by a Federal Aviation Administration (FAA) inspector about 4 months later. Efforts to contact the student pilot were unsuccessful. The student pilot's total flight experience, and flight experience in the airplane make and model, could not be determined. According to an FAA inspector, there were no known or reported mechanical malfunctions with the glider that would have precluded normal operation. Winds reported at an airport located about 21 miles south of the accident site, around the time of the accident, were from 110 degrees at 10 knots.

Factual narrative

The student pilot was landing the glider on runway 36, a 3,000-foot-long, 200-foot-wide, turf runway. During the landing roll, the glider veered off the right side of the runway and struck a gazebo, which resulted in substantial damage to glider's right wing and fuselage. The student pilot did not reside in the United States and subsequently returned to his country of residence. The accident was reported to the NTSB by a Federal Aviation Administration (FAA) inspector about 4 months later. Efforts to contact the student pilot were unsuccessful. The student pilot's total flight experience, and flight experience in the airplane make and model, could not be determined. According to an FAA inspector, there were no known or reported mechanical malfunctions with the glider that would have precluded normal operation. Winds reported at an airport located about 21 miles south of the accident site, around the time of the accident, were from 110 degrees at 10 knots.

Aircraft

Registration
N321BA
Reported as
Let L 23 Super Blanik (NO SERIES)
Category
Glider
Serial number
988407
Built
1998
Airframe hours
3,508
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Seminole Flying & Soaring Inc
Registered owner
Seminole Flying & Soaring Inc
Airworthiness certificate
Standard, Normal
Last inspection
Annual · May 8, 2013
Departed
6FL0 · Clermont, FL
Destination
6FL0 · Clermont, FL
Airport
6FL0 · Seminole Lake, runway 36, 3,000 × 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

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
54
Injuries
None
Certificate
Student
Seat
Front
Restraint
3-point
Flight hours
99,999 total · 99,999 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
110° at 10 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
88 °F, dew point 73 °F
Altimeter
30.06 inHg
Observed at
GIF, 21 nm away

Docket · 2

The files NTSB released with the investigation on March 18, 2014, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.9 MB in all.