# N4187U: 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: November 14, 2025
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4187U
- Page: https://openairdocs.org/aircraft/N4187U

## Aircraft that carried N4187U

- [Cancelled 2025-11-14](https://openairdocs.org/deregistered/N4187U-2025-11-14): Piper PA-28-181, S/N 2843201, built 1998. Owner: [Inter American University Of Puerto Rico](https://openairdocs.org/faa-owner/INTER%20AMERICAN%20UNIVERSITY%20OF%20PUERTO%20RICO), [Bayamon, PR](https://openairdocs.org/faa-place/PR/Bayamon)
- [Cancelled 1970-09-08](https://openairdocs.org/deregistered/N4187U-1970-09-08): Cessna 150, S/N 15060187. Owner: [Arey Martin J](https://openairdocs.org/faa-owner/AREY%20MARTIN%20J)

## NTSB investigations on N4187U (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 ERA25LA275](https://openairdocs.org/ntsb/ERA25LA275), Jul 21, 2025: Piper PA28 (N4187U), San Juan, PR, substantial damage. Probable cause: The student pilot’s excessing pitch attitude during takeoff, which resulted in a loss of aircraft control and aerodynamic stall.

## FAA accident and incident reports on N4187U (1)

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 20250721012959A](https://openairdocs.org/incident/20250721012959A), Jul 21, 2025: Piper PA-28-181 (N4187U), San Juan, PR, Destroyed. On July 21, 2025, about 1048 atlantic standard time, a Piper PA-28-181 airplane crashed shortly after departing runway 09 at Fernando Luis Ribas dominnicci…

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