# NTSB CEN12CA363: Hoac-Austria HK 36R Super Dimona, N400HK, New Douglas, IL, June 6, 2012

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Data collection · Final report
- Date: June 6, 2012, 17:30 local (22:30 UTC)
- Place: New Douglas, IL
- Coordinates: 38.925277, -89.662223 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.9253&lon=-89.6622&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Defining event: [Landing-flare/touchdown: Hard landing](https://openairdocs.org/ntsb-events/092)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 13, 2012
- Report: Approved by Office Director
- NTSB office: Central Region
- Parties: FAA St. Louis FSDO
- NTSB case key (mKey): 83941
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN12CA363
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/83941/pdf
- NTSB docket: https://data.ntsb.gov/Docket?ProjectID=83941
- Page: https://openairdocs.org/ntsb/CEN12CA363

## Probable cause

The pilot’s improper landing flare and inadequate recovery from a bounced landing.

## Findings

NTSB's coded findings; those marked are part of the probable cause.

- [Performance/control parameters: airspeed](https://openairdocs.org/ntsb-findings/01062010): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Hoac-Austria HK 36R SUPER DIMONA, 1 case](https://openairdocs.org/ntsb-findings/01062010/cases.md?model=4170002), [All aircraft, 1,681 cases](https://openairdocs.org/ntsb-findings/01062010/cases.md)
- [Performance/control parameters: landing flare](https://openairdocs.org/ntsb-findings/01062041): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Hoac-Austria HK 36R SUPER DIMONA, 1 case](https://openairdocs.org/ntsb-findings/01062041/cases.md?model=4170002), [All aircraft, 1,285 cases](https://openairdocs.org/ntsb-findings/01062041/cases.md)
- [Action: incorrect action performance](https://openairdocs.org/ntsb-findings/02041015): Personnel issues › Action/decision · Pilot (probable cause); cases with it: [Hoac-Austria HK 36R SUPER DIMONA, 1 case](https://openairdocs.org/ntsb-findings/02041015/cases.md?model=4170002), [All aircraft, 1,386 cases](https://openairdocs.org/ntsb-findings/02041015/cases.md)

## Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event best describes what happened.

- [Landing-flare/touchdown: Hard landing](https://openairdocs.org/ntsb-events/092) (defining event); cases with it: [Hoac-Austria HK 36R SUPER DIMONA, 1 case](https://openairdocs.org/ntsb-events/092/sequence.md?model=4170002), [All aircraft, 2,102 cases](https://openairdocs.org/ntsb-events/092/sequence.md)
- [Landing-flare/touchdown: Landing gear collapse](https://openairdocs.org/ntsb-events/094); cases with it: [Hoac-Austria HK 36R SUPER DIMONA, 1 case](https://openairdocs.org/ntsb-events/094/sequence.md?model=4170002), [All aircraft, 1,787 cases](https://openairdocs.org/ntsb-events/094/sequence.md)

## Analysis

The pilot reported that he maintained excessive airspeed during the final approach to landing and the glider bounced (in what he described as a pilot-induced oscillation) after the initial touchdown. The landing gear collapsed on the third bounce, resulting in substantial damage to the fuselage. The pilot reported that the glider had no mechanical malfunctions or failures prior to the landing.

## Factual narrative

The pilot reported that he maintained excessive airspeed during the final approach to landing and the glider bounced during the initial touchdown. The glider bounced two more times and the landing gear collapsed on the third bounce which resulted in substantial damage to the fuselage. The pilot reported that the glider did not have a mechanical malfunction prior to the landing.

## Aircraft

- Registration: [N400HK](https://openairdocs.org/aircraft/N400HK), registered now, S/N 36.400, built 1994 (OpenAirDocs)
- Reported make and model: HOAC-AUSTRIA HK 36R SUPER DIMONA
- Registry model: [Hoac-Austria HK 36R SUPER DIMONA](https://openairdocs.org/model/hoac-austria-hk-36r-super-dimona) (registry code 4170002) (OpenAirDocs)
- Registry engine: [Bombardier ROTAX (ALL)](https://openairdocs.org/engine/bombardier-rotax-all) (registry code 09050, reciprocating) (OpenAirDocs)
- Category: Glider
- Serial number: 36.400
- Airframe hours: 1523
- Engines: Rotax 912A2 85 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Gary Payne
- Registered owner: Franklin Gene O
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, May 5, 2012
- Departed: 4D0, Grand Ledge, MI
- Destination: 3IL1, New Douglas, IL
- Airport: 3IL1, Silver Creek Glider Club, runway 36, 3,000 × 200 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 55; injuries: none; private; airplane ratings: single-engine land; flight hours: 184 total, 25 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: 40° at 8 knots
- Visibility: 6 statute miles
- Temperature: 81 °F

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 20120606011039A](https://openairdocs.org/incident/20120606011039A), Jun 6, 2012: Hoac-Austria HK 36R SUPER DIMONA, New Douglas, IL, Substantial damage. The pilot had too much airspeed on final approach. After the initial touch down, the aircraft bounced. Subsequently, a pilot induced oscillation occurred. The…

## Other investigations on N400HK (1)

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.

- [NTSB CEN10CA232](https://openairdocs.org/ntsb/CEN10CA232), Apr 28, 2010: Hoac-Austria HK 36R Super Dimona (N400HK), Highland, IL, substantial damage. Probable cause: The pilot's inadequate preflight planning and his delayed aborted takeoff.

## Docket (1 files)

The files NTSB released with the investigation on July 3, 2012, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=83941. 725 KB in all.

- Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 725 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40371582&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.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.

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