# N6604C: 1978 Cessna 414A, registration cancelled 2018-05-31

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: May 31, 2018
- Status when cancelled: Sale reported, canceled
- Airframe: [Cessna 414A](https://openairdocs.org/model/cessna-414a) (registry code 2075907)
- Engine: [Continental TSIO-520 series](https://openairdocs.org/engine/continental-tsio-520-series) (registry code 17040)
- Data sheets: [TCDS A7CE](https://openairdocs.org/tcds/A7CE), [TCDS E8CE](https://openairdocs.org/tcds/E8CE) (OpenAirDocs)
- Serial number: 414A0030
- Year built: 1978
- Type of aircraft: Fixed wing multi engine
- Engine type: Reciprocating
- Airworthiness: Standard, normal
- Airworthiness date: February 17, 1978
- Last registry action: July 6, 2017
- Mode S code: A8B720
- Location: [Oklahoma City, OK](https://openairdocs.org/faa-place/OK/Oklahoma%20City)
- Owner type: Individual
- Owner's area on the map: 35.4676° N, 97.5164° W: Placed by OpenAirDocs: center of Oklahoma City, OK, within about 14 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N6604C
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=6604C
- Page: https://openairdocs.org/deregistered/N6604C-2018-05-31

From the FAA registry file of November 5, 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 Cessna 414A: https://openairdocs.org/model/cessna-414a.md

## Service difficulty reports (7)

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR 98ZZZX2682](https://openairdocs.org/sdr/98ZZZX2682), Jul 7, 1998: FLUX DETECTOR. SHORTED. GYRO CIRCUIT BREAKER TRIPPED 6 MINUTES INTO FLIGHT. CIRCUIT BRAKER WOULD NOT RESET. DISCOVERED THE FLUX DETECTOR P/N FDO103011 HAD SHORTED INTERNALLY CAUSING TH
- [SDR 97ZZZX4580](https://openairdocs.org/sdr/97ZZZX4580), Oct 8, 1997: MANIFOLD ASSY. DEFECTIVE. PILOT REPORTED THE 'HYDRAULIC PRESSURE' LIGHT WOULD NOT EXTINGUISH WHEN THE LANDING GEAR WAS RETRACTED. RED TRANSIT LIGHT EXTINGUISHED. GEAR CYCLED 5 TIMES IN T
- [SDR 97ZZZX1188](https://openairdocs.org/sdr/97ZZZX1188), Feb 27, 1997: ELBOW. TORN. PILOT REPORTED THAT THE RIGHT ENGINE WOULD NOT MAINTAIN POWER. MANIFOLD PRESSURE DECREASED DURING FLIGHT. TAKEOFF POWER OKAY ON BOTH ENGINES. DURING CLIMB, THE 
- [SDR 96ZZZX5443](https://openairdocs.org/sdr/96ZZZX5443), Sep 28, 1996: SWITCH. LOOSE. LANDING GEAR FAILED TO RETRACT. AIRCRAFT LANDED WITHOUT INCIDENT. IT WAS DISCOVERED THE WIRING HARNESS HAD TORN LOOSE FROM THE MICROSWITCH. HYD ACTUATOR WAS REP
- [SDR 96ZZZX2401](https://openairdocs.org/sdr/96ZZZX2401), Mar 20, 1996: CONNECTOR PLUG. PINS STRIPPED. LEFT ENGINE TACHOMETER FAILED ON TAKEOFF ROLL. PRE-INSPECTION, CONNECTOR PLUG SECURED AND SAFETIED. IT WAS DISCOVERED THE LEFT TACHOMETER GENERATOR ELECTRICAL C
- [SDR 96ZZZX697](https://openairdocs.org/sdr/96ZZZX697), Jan 4, 1996: HOSE. RUPTURED. HOSE ASSEMBLY P/N AE1005816G0166 LOCATED BETWEEN THE RT HYDRAULIC PUMP P/N 9910137-2 AND HYDRAULIC FILTER ASSEMBLY P/N AN6234-2 RUPTURED APPROXIMATELY 3 INCHES 
- [SDR 95ZZZX3467](https://openairdocs.org/sdr/95ZZZX3467), Jun 22, 1995: SHIM. DEFORMED. NOSE STRUT ASSY FAILED TO EXTEND. STUCK WITH APPROXIMATELY 6 INCHES OF PISTON AREA SHOWING. STRUT ASSY WAS DISASSEMBLED AND INSPECTED FOR DAMAGE. SHIM WAS FOUND

## 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 DEN79FTE05](https://openairdocs.org/ntsb/DEN79FTE05), Dec 10, 1978: Cessna 414 (N6604C), Aspen, CO, substantial damage

## FAA accident and incident reports (2)

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.

- [Incident 19930807035089I](https://openairdocs.org/incident/19930807035089I), Aug 7, 1993: Cessna 414A (N6604C), Honolulu, HI, Minor damage. Door warning light on during climb. Door handle had come out and below normal position. Door fell from aircraft.
- [Accident 19781210037229A](https://openairdocs.org/incident/19781210037229A), Dec 10, 1978: Cessna 414 (N6604C), Aspen, CO, Substantial damage

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