# N904DF: Aero Commander 500-B, registration cancelled 1991-09-12

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: September 12, 1991
- Status when cancelled: Valid registration
- Airframe: [Aero Commander 500-B](https://openairdocs.org/model/aero-commander-500-b) (registry code 0141106)
- Data sheets: [TCDS 6A1](https://openairdocs.org/tcds/6A1) (OpenAirDocs)
- Serial number: 500B105746
- Type of aircraft: Fixed wing multi engine
- Certificate issued: January 29, 1980
- Last registry action: March 15, 1991
- Mode S code: AC7E59
- Owner when cancelled: [Towner John D](https://openairdocs.org/faa-owner/TOWNER%20JOHN%20D)
- Location: [Shawnee Mission, KS](https://openairdocs.org/faa-place/KS/Shawnee%20Mission)
- Owner type: Individual
- Owner's area on the map: 39.0312° N, 94.6307° W: Placed by OpenAirDocs at the center of ZIP code 66205, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N904DF
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=904DF
- Page: https://openairdocs.org/deregistered/N904DF-1991-09-12

From the FAA registry file of November 3, 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 Aero Commander 500-B: https://openairdocs.org/model/aero-commander-500-b.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 CHI91FA235](https://openairdocs.org/ntsb/CHI91FA235), Jul 31, 1991: Aero Commander 500B (N904DF), Silica, KS, destroyed, 2 fatal. Probable cause: THE FAILURE OF BOTH PILOTS TO MAINTAIN ADEQUATE SEPARATION DURING FORMATION FLIGHT. RELATED FACTORS ARE OVERCONFIDENCE IN PERSONAL ABILITY AND POOR PLANNING/DECISION.

## 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 19910731030772A](https://openairdocs.org/incident/19910731030772A), Jul 31, 1991: Gulstm 500B (N904DF), Silica, KS, Destroyed, 1 fatal. Collided in flight with company 500B W702CA. Both fell to ground. Were observed flying formation and dog fighting.

## Other aircraft with N904DF

- [Registered now](https://openairdocs.org/aircraft/N904DF): Iai GULFSTREAM G280, S/N 2026, built 2013

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