# N4912T: Hancock Walter D AVID FLYER

- Status: Valid registration
- Airframe: [Hancock Walter D AVID FLYER](https://openairdocs.org/model/hancock-walter-d-avid-flyer) (registry code 05613AZ, 2 seats)
- Engine: [Cuyuna ALL MDLS A/B](https://openairdocs.org/engine/cuyuna-all-mdls-a-b) (registry code 19050)
- Serial number: 35
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: September 24, 1984
- Certificate issued: August 7, 2026
- Expires: August 31, 2033
- Mode S code: A6167F
- Registered owner: [Quandahl Mark W](https://openairdocs.org/faa-owner/QUANDAHL%20MARK%20W)
- Location: [Huntley, IL](https://openairdocs.org/faa-place/IL/Huntley)
- Owner type: Individual
- Owner's area on the map: 42.1739° N, 88.4446° W: Placed by OpenAirDocs at the center of ZIP code 60142, 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=4912T
- Page: https://openairdocs.org/aircraft/N4912T

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 (Hancock Walter D AVID FLYER)

None in force.

### Matched by engine (Cuyuna ALL MDLS A/B)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N4912T.

## FAA accident and incident reports

None matched to N4912T.

## 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 N4912T

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N4912T before.

- [Cancelled 1973-03-28](https://openairdocs.org/deregistered/N4912T-1973-03-28): Piper PA-28-140, S/N 287225279. Exported to Brazil. Owner: [Moody Walter](https://openairdocs.org/faa-owner/MOODY%20WALTER)

## Related

- Other Hancock Walter D AVID FLYER aircraft: https://openairdocs.org/model/hancock-walter-d-avid-flyer/aircraft.md
- The Cuyuna ALL MDLS A/B engine: https://openairdocs.org/engine/cuyuna-all-mdls-a-b.md

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