# NTSB WPR14CA275: Hoffman David K Hoffman BMW Airtrike, N190DH, Payette, ID, July 1, 2014

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Data collection · Final report
- Date: June 30, 2014, 20:32 local (Jul 1, 2014, 02:32 UTC)
- Place: Payette, ID
- Coordinates: 44.094444, -116.90361 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=44.0944&lon=-116.9036&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Defining event: [Approach-VFR go-around: Aerodynamic stall/spin](https://openairdocs.org/ntsb-events/241)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report October 27, 2014
- Report: Approved by Office Director
- NTSB office: Western Pacific Region
- Parties: Federal Aviation Administration
- NTSB case key (mKey): 89576
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR14CA275
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/89576/pdf
- NTSB docket: https://data.ntsb.gov/Docket?ProjectID=89576
- Page: https://openairdocs.org/ntsb/WPR14CA275

## Probable cause

The pilot's failure to maintain adequate airspeed during the go-around which resulted in a stall.

## 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 · Pilot (probable cause); cases with it: [Hoffman David K HOFFMAN BMW AIRTRIKE, 1 case](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=05633KY), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md)
- [Performance/control parameters: airspeed](https://openairdocs.org/ntsb-findings/01062010): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Hoffman David K HOFFMAN BMW AIRTRIKE, 1 case](https://openairdocs.org/ntsb-findings/01062010/cases.md?model=05633KY), [All aircraft, 1,681 cases](https://openairdocs.org/ntsb-findings/01062010/cases.md)

## Sequence of events

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

- [Approach-VFR go-around: Aerodynamic stall/spin](https://openairdocs.org/ntsb-events/241) (defining event); cases with it: [Hoffman David K HOFFMAN BMW AIRTRIKE, 1 case](https://openairdocs.org/ntsb-events/241/sequence.md?model=05633KY), [All aircraft, 1,529 cases](https://openairdocs.org/ntsb-events/241/sequence.md)
- [Landing: Dragged wing/rotor/float/other](https://openairdocs.org/ntsb-events/093); cases with it: [Hoffman David K HOFFMAN BMW AIRTRIKE, 1 case](https://openairdocs.org/ntsb-events/093/sequence.md?model=05633KY), [All aircraft, 319 cases](https://openairdocs.org/ntsb-events/093/sequence.md)

## Analysis

During a practice approach, the pilot attempted a go-around. While initiating the climb, the trike's left wing suddenly dropped and struck the ground. The trike subsequently cartwheeled and came to rest inverted which resulted in substantial damage to the fuselage and wing. The pilot reported no preimpact mechanical malfunction or failure with the trike that would have precluded normal operation.

## Factual narrative

During a practice approach, the pilot attempted a go-around. While initiating the climb, the trike's left wing suddenly dropped and struck the ground. The trike subsequently cartwheeled and came to rest inverted which resulted in substantial damage to the fuselage and wing. The pilot reported no preimpact mechanical malfunction or failure with the trike that would have precluded normal operation.

## Aircraft

- Registration: [N190DH](https://openairdocs.org/deregistered/N190DH-2014-08-19), registration cancelled 2014-08-19, S/N 777 (OpenAirDocs)
- Reported make and model: HOFFMAN DAVID K HOFFMAN BMW AIRTRIKE
- Registry model: [Hoffman David K HOFFMAN BMW AIRTRIKE](https://openairdocs.org/model/hoffman-david-k-hoffman-bmw-airtrike) (registry code 05633KY) (OpenAirDocs)
- Category: Weight-shift, amateur-built
- Serial number: 777
- Engines: BMW 1200GS reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Airworthiness certificate: Unknown
- Departed: EUL, CALDWELL, ID
- Destination: ID00, CALDWELL, ID
- Airport: S75, Payette Municipal, runway 13, 3,000 × 50 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 58; injuries: minor; seat: front; restraint: lap only; flight hours: 23 total, 23 in this make and model, 23 in the last 90 days, 23 in the last 30 days

## Weather

- Conditions: Visual (VMC), Dusk
- Wind: 150° at 4 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 84 °F, dew point 34 °F
- Altimeter: 30.03 inHg
- Observed at: KONO, 65 nm away

## 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 20140630011189A](https://openairdocs.org/incident/20140630011189A), Jun 30, 2014: Hoffman David K HOFFMAN BMW AIRTRIKE, Payette, ID, Destroyed. The aircraft owner needed to reposition his aircraft from caldwell airport (eul) to hubler field (pvt). While enroute to hubler field the aircraft owner…

## Docket (2 files)

The files NTSB released with the investigation on October 20, 2014, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=89576. 2.5 MB in all.

- Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 2.5 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40417806&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1%20-Redacted.PDF
- Record of Email (item 2, .PDF, 26 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40417807&FileExtension=.PDF&FileName=Record%20of%20Email-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.

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