# N8525Y: 1969 Hughes OH-6A

- Status: Valid registration
- Airframe: [Hughes OH-6A](https://openairdocs.org/model/hughes-oh-6a) (registry code 4470905, 4 seats)
- Engine: [Allison T63-A-700](https://openairdocs.org/engine/allison-t63-a-700) (registry code 03086)
- Data sheets: [TCDS H3WE](https://openairdocs.org/tcds/H3WE) (MD Helicopters LLC) (OpenAirDocs)
- Serial number: 67-16493
- Year built: 1969
- Type: Rotorcraft
- Engine type: Turbo-shaft
- Airworthiness: Experimental, exhibition
- Airworthiness date: December 4, 2024
- Certificate issued: May 2, 2024
- Expires: May 31, 2031
- Mode S code: ABB1E4
- Registered owner: [Grove Karl P](https://openairdocs.org/faa-owner/GROVE%20KARL%20P)
- Location: [Redlands, CA](https://openairdocs.org/faa-place/CA/Redlands)
- Owner type: Individual
- Owner's area on the map: 34.0148° N, 117.1625° W: Placed by OpenAirDocs at the center of ZIP code 92373, within about 4 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=8525Y
- Page: https://openairdocs.org/aircraft/N8525Y

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination.

## ADs that may apply (OpenAirDocs): 0 in force

### Matched by airframe (Hughes OH-6A)

None in force.

### Matched by engine (Allison T63-A-700)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N8525Y.

## FAA accident and incident reports

None matched to N8525Y.

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## STCs that may be installed (OpenAirDocs)

None matched to this aircraft's models.

## Earlier aircraft with N8525Y

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N8525Y before.

- [Cancelled 1969-10-21](https://openairdocs.org/deregistered/N8525Y-1969-10-21): Piper PA-30, S/N 30-1686, built 1968. Owner: [International Aircraft Deliveries Inc](https://openairdocs.org/faa-owner/INTERNATIONAL%20AIRCRAFT%20DELIVERIES%20INC), [Miami, FL](https://openairdocs.org/faa-place/FL/Miami)

## Related

- Other Hughes OH-6A aircraft: https://openairdocs.org/model/hughes-oh-6a/aircraft.md
- The Allison T63-A-700 engine: https://openairdocs.org/engine/allison-t63-a-700.md

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