# N451DF: 2022 Sikorsky S-70I

- Status: Valid registration
- Airframe: [Sikorsky S-70I](https://openairdocs.org/model/sikorsky-s-70i) (registry code 05633JZ, 15 seats)
- Engine: [GE T700-GE-701D](https://openairdocs.org/engine/ge-t700-ge-701d) (registry code 30155)
- Serial number: 705337
- Year built: 2022
- Type: Rotorcraft
- Engine type: Turbo-shaft
- Airworthiness: Experimental, research and development
- Airworthiness date: December 22, 2023
- Certificate issued: October 8, 2025
- Expires: October 31, 2032
- Mode S code: A57624
- Registered owner: [California Dept Of Forestry & Fire Protection](https://openairdocs.org/faa-owner/CALIFORNIA%20DEPT%20OF%20FORESTRY%20%26%20FIRE%20PROTECTION)
- Location: [Mcclellan, CA](https://openairdocs.org/faa-place/CA/Mcclellan)
- Owner type: Government
- Owner's area on the map: 38.6626° N, 121.4008° W: Placed by OpenAirDocs at the center of ZIP code 95652, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=451DF
- Page: https://openairdocs.org/aircraft/N451DF

From the FAA registry file of October 21, 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 (Sikorsky S-70I)

None in force.

### Matched by engine (GE T700-GE-701D)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N451DF.

## FAA accident and incident reports

None matched to N451DF.

## Service difficulty reports

None filed for this aircraft. Reports filed since August 18, 1988, when the mark's previous registration was cancelled.

## Earlier aircraft with N451DF

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N451DF before.

- [Cancelled 1988-08-18](https://openairdocs.org/deregistered/N451DF-1988-08-18): Grumman TS-2A, S/N 136639. Triennial form not returned
- [Cancelled (date not recorded)](https://openairdocs.org/deregistered/N451DF-undated): Grumman S2F-1 (TS-2A), S/N 027

## Related

- Other Sikorsky S-70I aircraft: https://openairdocs.org/model/sikorsky-s-70i/aircraft.md
- STCs for the Sikorsky S-70I: https://openairdocs.org/model/sikorsky-s-70i/stcs.md
- The GE T700-GE-701D engine: https://openairdocs.org/engine/ge-t700-ge-701d.md

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