# N531F: 1966 Slingsby DART T.51

- Status: Valid registration
- Airframe: [Slingsby DART T.51](https://openairdocs.org/model/slingsby-dart-t-51) (registry code 8320602, 1 seats)
- Engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000)
- Data sheets: [TCDS G5EU](https://openairdocs.org/tcds/G5EU) (Slingsby Sailplanes Ltd.) (OpenAirDocs)
- Serial number: 1479
- Year built: 1966
- Type: Glider
- Engine type: None
- Airworthiness: Experimental, racing, exhibition
- Airworthiness date: June 13, 2012
- Certificate issued: April 24, 2026
- Expires: April 30, 2033
- Mode S code: A6B4A1
- Registered owner: [Hillenbrand Carl J](https://openairdocs.org/faa-owner/HILLENBRAND%20CARL%20J)
- Location: [Utica, PA](https://openairdocs.org/faa-place/PA/Utica)
- Owner type: Individual
- Owner's area on the map: 41.4505° N, 79.9652° W: Placed by OpenAirDocs at the center of ZIP code 16362, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=531F
- Page: https://openairdocs.org/aircraft/N531F

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): 1 in force

### Matched by airframe (Slingsby DART T.51)

- [AD 2013-09-09](https://openairdocs.org/ad/2013-09-09): Wing · Slingsby Sailplanes Dart T.51, Dart T.51/17 and Dart T.51/17R. Effective Jun 20, 2013

### Matched by engine (NONE)

None in force.

### Historical (superseded or no longer in force)

- [AD 98-22-15](https://openairdocs.org/ad/98-22-15) (historical): Spar Assembly and Adjoining Structure · Slingsby Dart T.51, Dart T.51/17 and Dart T.51/17R. Effective Dec 14, 1998

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N531F.

## FAA accident and incident reports

None matched to N531F.

## 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) (1)

Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do.

### Approved for the airframe (Slingsby DART T.51)

- [STC SG03715NY](https://openairdocs.org/stc/SG03715NY): Iunstallation and maintenance of Oratex 6000 Covering and Coating System. Lanitz-Prena Folien Factory GmbH

## Earlier aircraft with N531F

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N531F before.

- [Cancelled 1971-01-07](https://openairdocs.org/deregistered/N531F-1971-01-07): Fairchild Hiller FH-1100, S/N 31. Exported to Canada. Owner: [Fairchild Hiller](https://openairdocs.org/faa-owner/FAIRCHILD%20HILLER)

## Related

- Other Slingsby DART T.51 aircraft: https://openairdocs.org/model/slingsby-dart-t-51/aircraft.md
- The NONE engine: https://openairdocs.org/engine/none.md

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