# N21901: not currently registered

- Registered now: No (not in the FAA registry file). The mark may be reserved or free to assign
- Earlier aircraft: 4
- Last cancelled: November 12, 2003
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=21901
- Page: https://openairdocs.org/aircraft/N21901

## Aircraft that carried N21901

- [Cancelled 2003-11-12](https://openairdocs.org/deregistered/N21901-2003-11-12): Cobb Intl Inc/DBA Rotorway INT EXEC 162F, S/N RI6035, built 1995. Triennial form not returned. Owner: [Cobb International Inc DBA](https://openairdocs.org/faa-owner/COBB%20INTERNATIONAL%20INC%20DBA), [Chandler, AZ](https://openairdocs.org/faa-place/AZ/Chandler)
- [Cancelled 1990-03-22](https://openairdocs.org/deregistered/N21901-1990-03-22): Piper PA-34-200T, S/N 347870452. N-number assigned, not yet registered
- [Cancelled 1973-07-11](https://openairdocs.org/deregistered/N21901-1973-07-11): Cessna 150L, S/N 15074522. Exported to Germany. Owner: [Cessnair Aviation Inc](https://openairdocs.org/faa-owner/CESSNAIR%20AVIATION%20INC), [Long Beach, CA](https://openairdocs.org/faa-place/CA/Long%20Beach)
- [Cancelled (date not recorded)](https://openairdocs.org/deregistered/N21901-undated): Beech D17A, S/N 361

## NTSB investigations on N21901 (2)

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 LAX02LA121](https://openairdocs.org/ntsb/LAX02LA121), Apr 1, 2002: Rotorway Exec 165F (N21901), Chandler, AZ, substantial damage. Probable cause: The tail rotor drive system failure as a result of incorrect installation procedures by the manufacturer's personnel.
- [NTSB LAX00LA173](https://openairdocs.org/ntsb/LAX00LA173), Apr 6, 2000: Rotorway Exec 162F (N21901), Chandler, AZ, substantial damage. Probable cause: The inadequate maintenance inspection of the secondary shaft which resulted in its fatigue failure that emanated from a corroded circumferential score mark. A factor was the fence that the pilot…

## FAA accident and incident reports on N21901 (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 20020401005029A](https://openairdocs.org/incident/20020401005029A), Apr 1, 2002: Amtr EXEC162F (N21901), Chandler, AZ, No damage. (-23) The ip & student were conducting a "transition" training flt. Southeast of stellar airpark (P19). While practicing a short final approach onto a remote…
- [Accident 20000406005829A](https://openairdocs.org/incident/20000406005829A), Apr 6, 2000: Amtr EXEC162F (N21901), Chandler, AZ, Substantial damage. (-23) On departure from memorial field, chanler, Arizona, pilot climbed pattern altitude of 300 ft (AGL). A loud noise was heard form rear of helicopter and…

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