# NTSB ERA14CA088: Let L 23 Super Blanik, N321BA, Clermont, FL, September 15, 2013 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: September 15, 2013, 10:00 local (15:00 UTC) - Place: Clermont, FL - Coordinates: 28.405834, -81.837776 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=28.4058&lon=-81.8378&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report April 1, 2014 - Report: Approved by Office Director - NTSB office: Eastern Region Aviation - Parties: FAA/FSDO - NTSB case key (mKey): 88644 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ERA14CA088 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/88644/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=88644 - Page: https://openairdocs.org/ntsb/ERA14CA088 ## Probable cause The student pilot's failure to maintain directional control during the landing roll. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Student/instructed pilot (probable cause); cases with it: [Let L-23 SUPER BLANIK, 10 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=1360308), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Performance/control parameters: directional control](https://openairdocs.org/ntsb-findings/01062020): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Let L-23 SUPER BLANIK, 4 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=1360308), [All aircraft, 3,958 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Let L-23 SUPER BLANIK, 3 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=1360308), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Landing-landing roll: Runway excursion](https://openairdocs.org/ntsb-events/300); cases with it: [Let L-23 SUPER BLANIK, 1 case](https://openairdocs.org/ntsb-events/300/sequence.md?model=1360308), [All aircraft, 3,643 cases](https://openairdocs.org/ntsb-events/300/sequence.md) - [Landing-landing roll: Ground collision](https://openairdocs.org/ntsb-events/200); cases with it: [Let L-23 SUPER BLANIK, 2 cases](https://openairdocs.org/ntsb-events/200/sequence.md?model=1360308), [All aircraft, 618 cases](https://openairdocs.org/ntsb-events/200/sequence.md) ## 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](https://openairdocs.org/deregistered/N321BA-2015-03-12), registration cancelled 2015-03-12, S/N 988407, built 1998 (OpenAirDocs) - Reported make and model: LET L 23 SUPER BLANIK (NO SERIES) - Registry model: [Let L-23 SUPER BLANIK](https://openairdocs.org/model/let-l-23-super-blanik) (registry code 1360308) (OpenAirDocs) - Registry engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000, none) (OpenAirDocs) - Category: Glider - Serial number: 988407 - Year built: 1998 - Airframe hours: 3508 - 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 ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 54; injuries: none; 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 files) The files NTSB released with the investigation on March 18, 2014, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=88644. 3.9 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 3.9 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40410643&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Master.PDF - Memorandum for Record - Telephone Interview, FAA (item 2, .PDF, 88 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40410644&FileExtension=.PDF&FileName=Memorandum%20for%20Record%20-%20Telephone%20Interview,%20FAA-Master.PDF From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.