# Niemann George/Sewall Robert CH II

- Type: Aircraft model (FAA registry)
- Registry code: 05623L1
- Manufacturer (registry): NIEMANN GEORGE/SEWALL ROBERT
- Model: CH II
- 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/niemann-george-sewall-robert-ch-ii

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 NYC02LA163](https://openairdocs.org/ntsb/NYC02LA163), Aug 13, 2002: Niemann Champion II (N7072X), Foxboro, MA, substantial damage. Probable cause: The pilot's failure to maintain aircraft control during the landing flare.

## FAA accident and incident reports

None matched to aircraft with this model.

## The same model under other registry codes

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

- [Benson James E CH II](https://openairdocs.org/model/benson-james-e-ch-ii): 1 registered aircraft, registry code 0561141
- [Quad City Ultralight CH II](https://openairdocs.org/model/quad-city-ultralight-ch-ii): 1 registered aircraft, registry code 056196Y
- [Burnett George CH-II](https://openairdocs.org/model/burnett-george-ch-ii): 1 registered aircraft, registry code 05627FC
- [Quad City Ultralight Acft CH II](https://openairdocs.org/model/quad-city-ultralight-acft-ch-ii): 1 registered aircraft, registry code 05902J5
- [Challenger CHII](https://openairdocs.org/model/challenger-chii): 1 registered aircraft, registry code 059033V
- [Quad City Ultralights CH II](https://openairdocs.org/model/quad-city-ultralights-ch-ii): 0 registered aircraft, registry code 05621DG
- [Tweedie Lewis Arnold CH II](https://openairdocs.org/model/tweedie-lewis-arnold-ch-ii): 0 registered aircraft, registry code 05624P2
- [Jackson Larry CH II](https://openairdocs.org/model/jackson-larry-ch-ii): 0 registered aircraft, registry code 05626AQ
- [Quad City Parts CH II](https://openairdocs.org/model/quad-city-parts-ch-ii): 0 registered aircraft, registry code 05902LB

---
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.