# N6021: 1963 Helio H-391B, registration cancelled 2012-10-16

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: October 16, 2012
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Helio H-391B](https://openairdocs.org/model/helio-h-391b) (registry code 4300106)
- Engine: [Lycoming GO-435C&D series](https://openairdocs.org/engine/lycoming-go-435c-d-series) (registry code 41521)
- Data sheets: [TCDS 1A8](https://openairdocs.org/tcds/1A8) (OpenAirDocs)
- Serial number: 069
- Year built: 1963
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard, normal
- Airworthiness date: June 28, 1963
- Certificate issued: August 12, 1966
- Last registry action: September 9, 1989
- Mode S code: A7D128
- Owners when cancelled: [Twin Pine Airport](https://openairdocs.org/faa-owner/TWIN%20PINE%20AIRPORT), [Weasner William  Owner](https://openairdocs.org/faa-owner/WEASNER%20WILLIAM%20%20OWNER)
- Location: [Pennington, NJ](https://openairdocs.org/faa-place/NJ/Pennington)
- Owner type: Individual
- Owner's area on the map: 40.3294° N, 74.7928° W: Placed by OpenAirDocs at the center of ZIP code 08534, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N6021
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=6021
- Page: https://openairdocs.org/deregistered/N6021-2012-10-16

From the FAA registry file of October 29, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Helio H-391B: https://openairdocs.org/model/helio-h-391b.md

## NTSB investigations (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 NYC67F0308](https://openairdocs.org/ntsb/NYC67F0308), Oct 20, 1966: Helio H-391B (N6021), Manville, NJ, substantial damage

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