# Rotax R670

- Type: Engine model (FAA registry)
- Registry code: 55605
- Manufacturer (registry): ROTAX
- Model: R670
- Engine type: 4 cycle
- Power: 87 hp
- Data sheet: [TCDS ATC 80](https://openairdocs.org/tcds/ATC%2080) (OpenAirDocs)
- Holder: Continental Motors Inc
- Installed in: 1 registered aircraft
- Page: https://openairdocs.org/engine/rotax-r670

Model codes come from the FAA registry's reference file.

## ADs that may apply (OpenAirDocs)

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

- [AD 95-21-15](https://openairdocs.org/ad/95-21-15): Aviation Gasoline · Continental Motors A-65-8, C85-12F, C85-12FJ and 77 more. Effective Nov 28, 1995

Historical (superseded or no longer in force):

- [AD 94-14-12](https://openairdocs.org/ad/94-14-12) (historical): Octane Aviation Gasoline · Teledyne Continental Motors A-65-8, C85-12, E185-11 and 68 more

## Registered aircraft (1)

- [N669BS](https://openairdocs.org/aircraft/N669BS): [Billman David E](https://openairdocs.org/faa-owner/BILLMAN%20DAVID%20E), [Grinnell, IA](https://openairdocs.org/faa-place/IA/Grinnell), built 1998, S/N 1004692

## NTSB investigations

None matched to aircraft with this engine model.

## FAA accident and incident reports

None matched to aircraft with this engine model.

## Service difficulty reports (3)

As reported by operators and repair stations, by the model named in the report.

- [SDR CA070804001](https://openairdocs.org/sdr/CA070804001), Aug 1, 2007: SIGHT GLASS. CRACKED. (CAN) AD CF61-7 CALLS FOR AN ANNUAL REPLACEMENT OF THIS TUBE, HOWEVER THIS OPERATOR HAS OBTAINED AN AMOC TO ALLOW OPERATING UNTIL FAILURE. IT HAS BEEN FOUND THA
- [SDR CA030527001](https://openairdocs.org/sdr/CA030527001), May 21, 2003: HUB. CRACKED. (CAN) PROPELLER WAS FOUND TO BE CRACKED BETWEEN LAMINATIONS, INSIDE THE INTERNAL HUB. MANUFACTURER INDICATES THIS MAY HAVE BEEN CAUSED BY MOISTURE CONTENT FLUCT
- [SDR CA010529011](https://openairdocs.org/sdr/CA010529011), Mar 27, 2001: SPAR. CRACKED. (CAN) AIRCRAFDT HEAVILY INSPECTED FOLLOWING GROUND LOOP. CRACK DISCOVERED PROPOGATING FROM AILRON CENTRE HINGE BOLT HOLE AND EXTENDING FOR SEVERAL FEET FOLLOWIN

## STCs that may be installed (OpenAirDocs) (1)

Approved for this engine model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has.

- [STC SE5879SW](https://openairdocs.org/stc/SE5879SW): Use of Phillips X/C II 20W-50 and25W-60 oil (OSS 55875) in all Avco reciprocating aircraft engines from 65 to 450 BHP. Phillips Petroleum Co

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