# N520CS: 1971 Rockwell International 681B, registration cancelled 2006-08-09

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: August 9, 2006
- Exported to: Venezuela
- Status when cancelled: Sale reported
- Airframe: [Rockwell International 681B](https://openairdocs.org/model/rockwell-international-681b) (registry code 7630511)
- Engine: [AiResearch TPE331 series](https://openairdocs.org/engine/airesearch-tpe331-series) (registry code 01514)
- Serial number: 6061
- Year built: 1971
- Type of aircraft: Fixed wing multi engine
- Engine type: Turbo-prop
- Airworthiness: Standard, normal
- Airworthiness date: May 4, 1978
- Last registry action: October 12, 2005
- Mode S code: A68931
- Location: [Miami, FL](https://openairdocs.org/faa-place/FL/Miami)
- Owner type: Individual
- Owner's area on the map: 25.5583° N, 80.4496° W: Placed by OpenAirDocs at the center of ZIP code 33170, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N520CS
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=520CS
- Page: https://openairdocs.org/deregistered/N520CS-2006-08-09

From the FAA registry file of October 28, 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 Rockwell International 681B: https://openairdocs.org/model/rockwell-international-681b.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 LAX98IA218](https://openairdocs.org/ntsb/LAX98IA218), Jun 29, 1998: Aero Commander 681B (N520CS), Reno, NV, incident, minor damage. Probable cause: The failure and separation of the first and third stage turbine disks for undetermined reasons.

## 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 19980629020809A](https://openairdocs.org/incident/19980629020809A), Jun 29, 1998: Gulstm 681 (N520CS), Reno, NV, Substantial damage. Uncontained failure of NR2 engine. Punctured pressurized fuselage. (-23) uncontained failure of #2 engine turbine section resulting in punctures in to the…

## Other aircraft with N520CS

- [Cancelled 2023-10-26](https://openairdocs.org/deregistered/N520CS-2023-10-26): Piper PA-31T1, S/N 31T-8104009, built 1980. Exported to Brazil. Owner: [Psa Management And Aircraft Sales LLC](https://openairdocs.org/faa-owner/PSA%20MANAGEMENT%20AND%20AIRCRAFT%20SALES%20LLC), [Stuart, FL](https://openairdocs.org/faa-place/FL/Stuart)

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