# N3939B: 1963 Bell 47J-2, registration cancelled 2018-04-05

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: April 5, 2018
- Status when cancelled: Revoked, canceled
- Airframe: [Bell 47J-2](https://openairdocs.org/model/bell-47j-2) (registry code 1181104)
- Engine: [Lycoming VO-540 series](https://openairdocs.org/engine/lycoming-vo-540-series) (registry code 41534)
- Data sheets: [TCDS 2H1](https://openairdocs.org/tcds/2H1), [TCDS E-304](https://openairdocs.org/tcds/E-304) (OpenAirDocs)
- Serial number: 2846
- Year built: 1963
- Type of aircraft: Rotorcraft
- Engine type: Reciprocating
- Airworthiness: Standard
- Certificate issued: July 16, 1975
- Last registry action: April 23, 1977
- Mode S code: A49183
- Owner when cancelled: [Copter Inc](https://openairdocs.org/faa-owner/COPTER%20INC)
- Location: [Philadelphia, PA](https://openairdocs.org/faa-place/PA/Philadelphia)
- Owner type: Corporation
- Owner's area on the map: 39.8806° N, 75.2302° W: Placed by OpenAirDocs at the center of ZIP code 19153, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N3939B
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=3939B
- Page: https://openairdocs.org/deregistered/N3939B-2018-04-05

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 Bell 47J-2: https://openairdocs.org/model/bell-47j-2.md

## NTSB investigations (2)

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 NYC76AN044](https://openairdocs.org/ntsb/NYC76AN044), Oct 22, 1975: Bell 47J-2 (N3939B), Conshocken, PA, substantial damage
- [NTSB NYC67A0030](https://openairdocs.org/ntsb/NYC67A0030), Aug 17, 1966: Bell 47J-2 (N3939B), Dedham, MA, substantial damage

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 19751022041339A](https://openairdocs.org/incident/19751022041339A), Oct 22, 1975: Bell 47J2 (N3939B), Conshocken, PA, Substantial damage. Nr 5 connecting rod (p/n LW-13422) fatigue fractured and broke a hole in crankcase. Drained eng oil

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