# Fetherolf Will CB-1

- Type: Aircraft model (FAA registry)
- Registry code: 05606K4
- Manufacturer (registry): FETHEROLF WILL
- Model: CB-1
- 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: 0
- Page: https://openairdocs.org/model/fetherolf-will-cb-1

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

None registered with this model now.

## 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 SEA02LA010](https://openairdocs.org/ntsb/SEA02LA010), Nov 2, 2001: Fetherolf Hatz CB-1 (N26WF), Ontario, OR, substantial damage. Probable cause: An improper weld in the landing gear, resulting in separation of the right main landing gear wheel during a normal landing.

## FAA accident and incident reports (2)

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 20040616010149A](https://openairdocs.org/incident/20040616010149A), Jun 16, 2004: Amtr CB1 (N26WF), Nampa, ID, Substantial damage. (-23) Pilot stated that he departed rwy 29, Nampa, flew left pattern and attempted to land rwy 29. He stated that aircraft floated excessively at approximately…
- [Accident 20011102029929A](https://openairdocs.org/incident/20011102029929A), Nov 2, 2001: N26WF, Ontario, OR, No damage. (-23) Aircraft was built by pilot as a homebuilt kit. On landing, a weld on the landing gear broke and the right wheel detached from the frame. This caused the…

## The same model under other registry codes

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

- [Hatz CB-1](https://openairdocs.org/model/hatz-cb-1): 2 registered aircraft, registry code 05601M1
- [Kelly CB-1](https://openairdocs.org/model/kelly-cb-1): 1 registered aircraft, registry code 0562579
- [Ray Beeninga CB-1](https://openairdocs.org/model/ray-beeninga-cb-1): 1 registered aircraft, registry code 05639JG
- [Edward H Olson CB1](https://openairdocs.org/model/edward-h-olson-cb1): 1 registered aircraft, registry code 05640HY
- [Stick & Rag Flying Club CB-1](https://openairdocs.org/model/stick-rag-flying-club-cb-1): 1 registered aircraft, registry code 05655V3
- [Budde George L CB-1](https://openairdocs.org/model/budde-george-l-cb-1): 0 registered aircraft, registry code 05655VP
- [Pietenpol CB-1](https://openairdocs.org/model/pietenpol-cb-1): 0 registered aircraft, registry code 70401RT

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