# Kerr John HATZ CLASSIC

- Type: Aircraft model (FAA registry)
- Registry code: 056278E
- Manufacturer (registry): KERR JOHN
- Model: HATZ CLASSIC
- Aircraft type: Fixed wing single engine
- Category: Airplane
- Engines: 1 · Reciprocating
- Seats: 2
- Weight class: Up to 12,499 lb
- Certification: Not type certificated
- Registered aircraft: 1
- Page: https://openairdocs.org/model/kerr-john-hatz-classic

Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker.

## ADs that may apply (OpenAirDocs)

Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment.

None matched.

## Registered aircraft (1)

- [N687HZ](https://openairdocs.org/aircraft/N687HZ): [Brown Verne L](https://openairdocs.org/faa-owner/BROWN%20VERNE%20L), [Ennis, MT](https://openairdocs.org/faa-place/MT/Ennis), built 2009, S/N 687

## NTSB investigations (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 WPR23LA354](https://openairdocs.org/ntsb/WPR23LA354), Apr 29, 2023: Kerr John Hatz Classic (N687HZ), Ennis, MT, substantial damage. Probable cause: The pilot’s failure to maintain directional control during the landing roll which resulted in a ground-loop.

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 20230428018639A](https://openairdocs.org/incident/20230428018639A), Apr 28, 2023: Kerr John HATZ CLASSIC (N687HZ), Ennis, MT, Substantial damage. Description of the deviation: While operating a Hatz Classic experimental biplane on a VFR flight plan and upon landing on rwy 16 at the Ennis, MT airport…

## The same model under other registry codes

Amateur-built copies and renamed makers get their own codes.

- [Root Gary W HATZ CLASSIC](https://openairdocs.org/model/root-gary-w-hatz-classic): 1 registered aircraft, registry code 05619Q5
- [Cada Timothy G HATZ CLASSIC](https://openairdocs.org/model/cada-timothy-g-hatz-classic): 1 registered aircraft, registry code 05620W1
- [Crook Bob HATZ CLASSIC](https://openairdocs.org/model/crook-bob-hatz-classic): 1 registered aircraft, registry code 05620WJ
- [Sieck Ronald E HATZ CLASSIC](https://openairdocs.org/model/sieck-ronald-e-hatz-classic): 1 registered aircraft, registry code 05622X9
- [Hanson Jw/Hanson JJ HATZ CLASSIC](https://openairdocs.org/model/hanson-jw-hanson-jj-hatz-classic): 1 registered aircraft, registry code 056271F
- [Ebensperger John Thomas HATZ CLASSIC](https://openairdocs.org/model/ebensperger-john-thomas-hatz-classic): 1 registered aircraft, registry code 05627TU
- [Patrick J Long HATZ CLASSIC](https://openairdocs.org/model/patrick-j-long-hatz-classic): 1 registered aircraft, registry code 056327Z
- [Harvey William B HATZ CLASSIC](https://openairdocs.org/model/harvey-william-b-hatz-classic): 1 registered aircraft, registry code 056333S
- [Williams Timothy L HATZ CLASSIC](https://openairdocs.org/model/williams-timothy-l-hatz-classic): 1 registered aircraft, registry code 05633RR
- [William P Bresnan HATZ CLASSIC](https://openairdocs.org/model/william-p-bresnan-hatz-classic): 1 registered aircraft, registry code 056343W
- [Van Lehn Richard Glenn HATZ CLASSIC](https://openairdocs.org/model/van-lehn-richard-glenn-hatz-classic): 1 registered aircraft, registry code 056392O
- [Carlo Cilliers HATZ CLASSIC](https://openairdocs.org/model/carlo-cilliers-hatz-classic): 1 registered aircraft, registry code 056392Y

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