# N89678: not currently registered

- Registered now: No (not in the FAA registry file). The mark may be reserved or free to assign
- Earlier aircraft: 2
- Last cancelled: June 26, 2001
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=89678
- Page: https://openairdocs.org/aircraft/N89678

## Aircraft that carried N89678

- [Cancelled 2001-06-26](https://openairdocs.org/deregistered/N89678-2001-06-26): Cobb Intl Inc DBA Rotorway INT ROTORWAY EXEC 90, S/N R.I. 5026. Triennial form not returned. Owner: [Cobb International Inc](https://openairdocs.org/faa-owner/COBB%20INTERNATIONAL%20INC), [Chandler, AZ](https://openairdocs.org/faa-place/AZ/Chandler)
- [Cancelled 1974-08-01](https://openairdocs.org/deregistered/N89678-1974-08-01): Cessna 120, S/N 8726, built 1946. Owner: [Hetzler Ronald L/Lynch Gary](https://openairdocs.org/faa-owner/HETZLER%20RONALD%20L%2FLYNCH%20GARY), [Madison, WI](https://openairdocs.org/faa-place/WI/Madison)

## NTSB investigations on N89678 (5)

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 LAX00LA071](https://openairdocs.org/ntsb/LAX00LA071), Jan 4, 2000: Rotorway Exec 90 (N89678), Chandler, AZ, substantial damage. Probable cause: the fatigue fracture and separation of the secondary drive shaft, which resulted from the manufacturer's inadequate quality control process.
- [NTSB LAX96LA210](https://openairdocs.org/ntsb/LAX96LA210), May 22, 1996: Rotorway Exec 9 (N89678), Chandler, AZ, substantial damage. Probable cause: a loss of engine power due to a failed piston and piston ring in a critical phase of flight.
- [NTSB LAX94LA069](https://openairdocs.org/ntsb/LAX94LA069), Dec 8, 1993: Rotorway EXEC-90 (N89678), Chandler, AZ, substantial damage. Probable cause: THE FLIGHT INSTRUCTOR'S FAILURE TO PROPERLY FOLLOW THE AIRCRAFT BALLASTING PROCEDURES THAT RESULTED IN A LOSS OF CONTROL WHEN THE HELICOPTER'S CENTER OF GRAVITY LIMITS WERE EXCEEDED. INADEQUATE…
- [NTSB LAX93LA111](https://openairdocs.org/ntsb/LAX93LA111), Feb 9, 1993: Cobb Intl Exec 90 (N89678), Chandler, AZ, substantial damage. Probable cause: THE MANUFACTURER'S INADEQUATE QUALITY CONTROL WHICH RESULTED IN THE FATIGUE OF THE VALVE STEM. THE SOFT TERRAIN CONTRIBUTED TO THIS ACCIDENT.
- [NTSB MKC74FCD45](https://openairdocs.org/ntsb/MKC74FCD45), Jun 30, 1974: Cessna 120 (N89678), Keosauqa, IA, destroyed

## FAA accident and incident reports on N89678 (5)

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 20000104000899A](https://openairdocs.org/incident/20000104000899A), Jan 4, 2000: Amtr ROTORWAYEXEC (N89678), Chandler, AZ, Substantial damage. (.19) On January 4, 2000, about 1400 hours mountain standard time, an amateur built experimental rotorway exec 9 helicopter, N89678, sustained substantial…
- [Accident 19960522012139A](https://openairdocs.org/incident/19960522012139A), May 22, 1996: Amtr ROTORWAYEXEC (N89678), Chandler, AZ, Substantial damage. Landed hard due low rotor RPM. Folded skid. Rolled over. NR1 piston top broke off. Engine operated defect in piston
- [Accident 19931208046329A](https://openairdocs.org/incident/19931208046329A), Dec 8, 1993: Amtr ROTORWAYEXEC (N89678), Chandler, AZ, Substantial damage. Balance ballast weight not switched to rear for 2 occupants. Was forward for student solo. Crashed nose down.
- [Accident 19930209002169A](https://openairdocs.org/incident/19930209002169A), Feb 9, 1993: Amtr ROTORWAYEXEC (N89678), Chandler, AZ, Substantial damage. Engine quit in pattern on test flight. Rocked on landing. Rolled. Engine had swallowed a valve. Stem not ground.
- [Accident 19740630017419A](https://openairdocs.org/incident/19740630017419A), Jun 30, 1974: Cessna 120 (N89678), Keosauqa, IA, Destroyed. Plt decided to fly low to look at some relatives land adjacent to river.

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