# N4SU: not currently registered

- Registered now: No (not in the FAA registry file). The mark may be reserved or free to assign
- Earlier aircraft: 1
- Last cancelled: May 6, 2019
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4SU
- Page: https://openairdocs.org/aircraft/N4SU

## Aircraft that carried N4SU

- [Cancelled 2019-05-06](https://openairdocs.org/deregistered/N4SU-2019-05-06): Grumman American Avn. AA-1B, S/N AA1B-0346, built 1974. Registration expired, pending cancellation. Owner: [Rappoport Aron S](https://openairdocs.org/faa-owner/RAPPOPORT%20ARON%20S), [Los Angeles, CA](https://openairdocs.org/faa-place/CA/Los%20Angeles)

## NTSB investigations on N4SU (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 WPR16FA124](https://openairdocs.org/ntsb/WPR16FA124), Jun 11, 2016: Grumman American Avn. AA 1B (N4SU), Hawthorne, CA, destroyed, 2 fatal. Probable cause: The failure of both pilots to land the airplane on the remaining runway when a sufficient rate of climb could not be attained. Contributing to the accident was a reduction of available engine power…
- [NTSB MKC75FTG05](https://openairdocs.org/ntsb/MKC75FTG05), Jul 21, 1974: Amer Avco AA1-B (N4SU), Fargo, ND, substantial damage

## FAA accident and incident reports on N4SU (3)

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 20160610010259A](https://openairdocs.org/incident/20160610010259A), Jun 10, 2016: Grumman American Avn. Corp. AA-1B (N4SU), Hawthorne, CA, Destroyed, 2 fatal. On June 10, 2016, at 1710 PST a Grumman American aviation corporation AA-1B, N4SU, was destroyed when it impacted a residence after takeoff from Jack northrup…
- [Incident 19800405047779I](https://openairdocs.org/incident/19800405047779I), Apr 5, 1980: Grumav TR2 (N4SU), Banning, CA, Minor damage. Propeller blade separated. Aircraft landed in field.
- [Accident 19740721026749A](https://openairdocs.org/incident/19740721026749A), Jul 21, 1974: Grumav AA1B (N4SU), Fargo, ND, Substantial damage. L fuel cell empty. R fuel cell four gal of fuel. Selector switched fm l to r after pwr loss.

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