# N300SN: 1979 Cessna 402C, registration cancelled 2023-08-18

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: August 18, 2023
- Status when cancelled: Valid registration
- Airframe: [Cessna 402C](https://openairdocs.org/model/cessna-402c) (registry code 207590R)
- 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: 402C0060
- Year built: 1979
- Type of aircraft: Fixed wing multi engine
- Engine type: Reciprocating
- Airworthiness: Standard, normal
- Airworthiness date: April 24, 1979
- Certificate issued: October 2, 2009
- Last registry action: May 26, 2023
- Mode S code: A320EF
- Owner when cancelled: [Hyannis Air Service Inc](https://openairdocs.org/faa-owner/HYANNIS%20AIR%20SERVICE%20INC)
- Location: [Hyannis, MA](https://openairdocs.org/faa-place/MA/Hyannis)
- Owner type: Corporation
- Owner's area on the map: 41.6612° N, 70.2932° W: Placed by OpenAirDocs at the center of ZIP code 02601, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N300SN
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=300SN
- Page: https://openairdocs.org/deregistered/N300SN-2023-08-18

From the FAA registry file of October 31, 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 402C: https://openairdocs.org/model/cessna-402c.md

## Service difficulty reports (18)

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

- [SDR HYIA20180220001](https://openairdocs.org/sdr/HYIA20180220001), Feb 16, 2018: PISTON. DAMAGED. PILOT REPORTED AN EXCESSIVE AIR FRAME VIBRATION ASSOCIATED WITH PROP RPM. MAINTENANCE INSPECTED AND FOUND THE RIGHT ENGINE NR 6 CYLINDER PISTON HEAD TO BE DAMAG
- [SDR HYIA20170331001](https://openairdocs.org/sdr/HYIA20170331001), Mar 29, 2017: TERMINAL. LOOSE. PILOT REPORTED SMOKE IN COCKPIT IN VICINITY OF FLAP INDICATOR/HANDLE. MAINTENANCE INSPECTED AND FOUND FLAP INDICATOR POST LIGHT TERMINAL LOOSE AND ARCHING; RE-S
- [SDR HYIA20170208002](https://openairdocs.org/sdr/HYIA20170208002), Feb 7, 2017: VALVE GUIDE. DAMAGED. PILOT REPORTED ENGINE MANIFOLD PRESSURE ERRATIC DURING TAKE OFF ROLL. MAINTENANCE INSPECTED AND FOUND THE EXHAUST VALVE GUIDE ON THE NR 5 CYLINDER DAMAGED.
- [SDR HYIA20161108189](https://openairdocs.org/sdr/HYIA20161108189), Oct 29, 2016: EXHAUST VALVE. DAMAGED. CYLINDER REMOVED DUE TO LOW COMPRESSION AT INSPECTION; EXHAUST VALVE DISPLAYS EVIDENCE OF HEAT DAMAGE.
- [SDR HYIA20160913160](https://openairdocs.org/sdr/HYIA20160913160), Sep 28, 2016: EXHAUST VALVE. DAMAGED. CYLINDER REMOVED DUE TO LOW COMPRESSION AT INSPECTION; EXHAUST VALVE DISPLAYS EVIDENCE OF HEAT DAMAGE.
- [SDR HYIA20160902116](https://openairdocs.org/sdr/HYIA20160902116), Sep 1, 2016: EXHAUST VALVE. DAMAGED. CYLINDER REMOVED DUE TO LOW COMPRESSION AT INSPECTION. EXHAUST VALVE DISPLAYS EVIDENCE OF HEAT DAMAGE.
- [SDR HYIA20160825084](https://openairdocs.org/sdr/HYIA20160825084), Aug 19, 2016: EXHAUST VALVE. DAMAGED. CYLINDER REMOVED DUE TO LOW COMPRESSION AT INSPECTION. EXHAUST VALVE DISPLAYS, EVIDENCE OF HEAT DAMAGE.
- [SDR HYIA20160803045](https://openairdocs.org/sdr/HYIA20160803045), Jul 11, 2016: EXHAUST VALVE. CRACKED. CYLINDER REMOVED DUE TO LOW COMPRESSION AT INSPECTION. EXHAUST VALVE CRACKED AND DISPLAYS EVIDENCE OF HEAT DAMAGE. THE VALVE SEAT ALSO SHOWED SIGNS OF WEAR.
- [SDR HYIA20160803044](https://openairdocs.org/sdr/HYIA20160803044), Jul 11, 2016: EXHAUST VALVE. DAMAGED. CYLINDER REMOVED DUE TO LOW COMPRESSION AT INSPECTION. EXHAUST VALVE DISPLAYS EVIDENCE OF HEAT DAMAGE.
- [SDR HYIA20160803026](https://openairdocs.org/sdr/HYIA20160803026), Jul 4, 2016: EXHAUST VALVE. DAMAGED. CYLINDER REMOVED DUE TO LOW COMPRESSION AT INSPECTION. EXHAUST VALVE DISPLAYS EVIDENCE OF HEAT DAMAGE.
- [SDR HYIA20160803025](https://openairdocs.org/sdr/HYIA20160803025), Jul 4, 2016: EXHAUST VALVE. DAMAGED. CYLINDER REMOVED DUE TO LOW COMPRESSION AT INSPECTION. EXHAUST VALVE DISPLAYS EVIDENCE OF HEAT DAMAGE.
- [SDR HYIA20140109001](https://openairdocs.org/sdr/HYIA20140109001), Jan 9, 2014: CALIPER. FROZEN. LEFT BRAKE FROZEN UP ON TAXI. REPLACED LT BRAKE CALIPER & REPLACED PARKING BRAKE VLV. PURGED LT BRAKE SYS FLUID & PERFORMED BRAKE BLEEDING. PARKING BRAKE VLV PN
- [SDR HYIA20140102001](https://openairdocs.org/sdr/HYIA20140102001), Dec 30, 2013: HEATER. FAULTY. CABIN HEATER PRODUCES HEAVY EXHAUST SMELL & MINIMAL HEAT WHEN ON. DEFERRED CABIN HEATER FAN IAW MEL 21-01-2.
- [SDR HYIA20140414046](https://openairdocs.org/sdr/HYIA20140414046), Feb 21, 2013: DRAG BRACE. CRACKED. AT SCHEDULED INSPECTION, NLG DRAG BRACE, PN 5142002-5 WAS FOUND TO BE CRACKED IN THE AREA OF NLG ACTUATOR ATTACH POINT. METHOD OF INSPECTION WAS DYE PENETRANT. 
- [SDR HYIA20140414033](https://openairdocs.org/sdr/HYIA20140414033), Nov 28, 2012: DRAG BRACE. CRACKED. AT SCHEDULED INSPECTION, NLG DRAG BRACE, PN 5142002-5 WAS FOUND TO BE CRACKED IN THE AREA OF NLG ACTUATOR ATTACH POINT. METHOD OF INSPECTION WAS DYE PENETRANT. 
- [SDR HYIA20140415031](https://openairdocs.org/sdr/HYIA20140415031), Feb 11, 2011: DRAG BRACE. CRACKED. AT SCHEDULED INSPECTION, NLG DRAG BRACE OEM PN 5142002-5 WAS FOUND TO BE CRACKED IN THE AREA OF NLG ACTUATOR ATTACH POINT. METHOD OF INSPECTION WAS DYE PENETRAN
- [SDR HYIA20140415005](https://openairdocs.org/sdr/HYIA20140415005), Jan 21, 2011: DRAG BRACE. CRACKED. AT SCHEDULED INSPECTION, NLG DRAG BRACE OEM PN 5142002-5 WAS FOUND TO BE CRACKED IN THE AREA OF NLG ACTUATOR ATTACH POINT. METHOD OF INSPECTION WAS DYE PENETRAN
- [SDR HYIA300SNGEAR](https://openairdocs.org/sdr/HYIA300SNGEAR), Apr 15, 2010: LINE. RUPTURED. CREW REPORTED, DURING LANDING GEAR EXTENSION, NOSE GEAR DOWN AND LOCK LIGHT DID NOT ILLUMINATE. SHORTLY AFTERWARDS, BOTH HYD FLOW LIGHT ILLUMINATED. ELECTED TO 

## 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 GAA19CA451](https://openairdocs.org/ntsb/GAA19CA451), Jul 21, 2019: Cessna 402 (N300SN), St. Louis, MO, substantial damage. Probable cause: The airplane’s collision with a bird during short final.
- [NTSB ANC04CA085](https://openairdocs.org/ntsb/ANC04CA085), Aug 5, 2004: Cessna 402C (N300SN), Huslia, AK, substantial damage. Probable cause: The pilot's failure to extend the landing gear, which resulted in an inadvertent wheels up landing. A factor associated with the accident was the pilot's diverted attention.

## FAA accident and incident reports (8)

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 20190721012379A](https://openairdocs.org/incident/20190721012379A), Jul 21, 2019: Cessna 402C (N300SN), St. Louis, MO, Substantial damage. Short final the pilot did a quick maneuver to avoid a hawk. When he rolled wings level the 2nd hawk came through the bottom of the prop, Under the wing and…
- [Incident 20130306002539I](https://openairdocs.org/incident/20130306002539I), Mar 6, 2013: Cessna 402C (N300SN), Augusta, ME, Minor damage. Pilot reported that on approach to kaug, all indications were normal for landing on runway 35. He states, as he landed in the touchdown zone the left brake…
- [Incident 20060515008579I](https://openairdocs.org/incident/20060515008579I), May 15, 2006: Cessna 402C (N300SN), Kaltag, AK, Minor damage. (-23) [privacy data omitted] while taxiing to the ramp turned to the right too tight and hit last taxiway light.
- [Incident 20060329005459I](https://openairdocs.org/incident/20060329005459I), Mar 29, 2006: Cessna 402C (N300SN), Fairbanks, AK. (-23) Engine crankcase breather vent line was found to be insulated and the "whistle slot" (alternate venting) was taped shut with black electrician tape.…
- [Accident 20040804017339A](https://openairdocs.org/incident/20040804017339A), Aug 4, 2004: Cessna 402C (N300SN), Huslia, AK, Substantial damage. (-23) PIC stated that he was preparing to land runway 3. While completing the prelanding checks he decided that runway conditions were in favor of switching to…
- [Incident 19911018051029I](https://openairdocs.org/incident/19911018051029I), Oct 18, 1991: Cessna 402C (N300SN), Drummond Island, MI, Minor damage. On landing rollout pilot struck a deer.
- [Incident 19880512061339I](https://openairdocs.org/incident/19880512061339I), May 12, 1988: Cessna 402C (N300SN), Gwinn, MI. A passenger reported the pilot penetrated a thunderstorm while landing at the airport.
- [Incident 19870818070429I](https://openairdocs.org/incident/19870818070429I), Aug 18, 1987: Cessna 402C (N300SN), Gwinn, MI. The aircraft tookoff with thunderstorms in the vicinity. Shortly after, passengers reported rain and turbulence.

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