Aircraft record

N4630N1978 Cessna 402C

Registration validUnclaimedSource: FAA, updated Oct 18, 2026

Safety record in brief:1 NTSB accident (minor damage, Sep 1987)9 ADs may apply10 service difficulty reports

Registration: Valid; expires Sep 30, 2028
Based in: Hyannis, MA; owner city / state
Engine: TSIO-520 SER · 300 hp; Cont Motor
Owners: 1; since 2009
NTSB events: 1; minor, 1987
ADs may apply: 9; confirm with A&P
Service reports: 10; since 1995

Registration

FAA Aircraft Registry · Oct 18, 2026

Registered owner: Hyannis Air Service INC
Owner type: Corporation
City, state: Hyannis, MA
Certificate issued: Oct 2, 2009
Expires: Sep 30, 2028
Airworthiness: Standard · Normal
Airworthiness date: Oct 18, 1978

We never show street addresses, even though they appear in the public FAA file. Individual owners are shown by city and state only.

Airframe & engine

FAA Registry + type data

Airframe

Manufacturer: Cessna
Model: 402C
Year: 1978
Serial number: 402C0001
Aircraft type: Fixed wing multi engine
Category: Land
Certification: Type Certificated
Seats: 10
Engines: 2
Max takeoff weight: Up to 12,499 lb
Mode S code: A5A725

Engine

Make and model: Cont Motor Tsio-520 Ser
Type: Reciprocating
Power: 300 hp

Total time and engine hours aren't public. They appear here once the owner adds logbooks.

Ownership history

Ownership history from FAA records

2009 – nowHyannis Air Service INCHyannis, MA · current
1947 – 1955Page Aircraft IndustriesOklahoma City, OK · different airframe: 1946 Cessna T-50 S/N 3684

Individual owners are shown by city and state only.

Safety record

NTSB · Oct 15, 2026 · FAA ADs · Oct 18, 2026 · SDRs · Oct 16, 2026

NTSB events (1)

Accident · minor damage

Sep 11, 1987 · Atlanta, GA

DURING CLIMB TO CRUISE AT ABOUT 4,000 FT MSL, THE PLT HEARD A 'WHISTLING' NOISE AND NOTICED THAT THE CREW DOOR ADJACENT TO HIS SEAT WAS NOT COMPLETELY SECURED. THE DOOR CAME OPEN AS HE ATTEMPTED TO PROPERLY SECURE IT, AND YANKED HIS LEFT ARM OUTSIDE THE ACFT. HIS ARM WAS SUBSEQUENTLY BROKEN AS THE AIRSTREAM FORCED IT BACKWARDS AGAINST THE DOOR FRAME. HE ADVISED ATC OF HIS SITUATION AND RECEIVED…

Damage: Minor
Injuries: Serious
Report: ATL87FA255

From NTSB records; matched by serial number.Read NTSB report (search CAROL for ATL87FA255)

Accident history for this model

ADs published since 1998 that may apply (9)

These match the airframe or engine model. Whether each one applies, and whether it's been complied with, depends on serial numbers, equipment and logbook entries. Applicability must be confirmed by a mechanic against the aircraft's records.

AD	Subject	Effective	Applies to
2017-10-09	Textron Aviation Inc. Airplanes	Jun 7, 2017	Airframe (402C)Certain serial numbers: 402C 402C0001–402C1020; 414A 414A0001–414A1212. Only with: Equipped with Cessna Multi-Engine Service Kit SK402-47 (Original Issue, Rev A, or Rev B) or nacelle fittings P/Ns 5292029-9, -10, -11, -12, -21, -22, -23, or -24.
2016-17-08	Elevator Tab Control System	Sep 12, 2016	Airframe (402C)
2015-07-03	Nacelles/Pylons	Apr 24, 2015	Airframe (402C)Certain serial numbers: 402C 402C0001–402C1020; 414A 414A0001–414A1212
2012-23-01	Wings	Dec 26, 2012	Airframe (402C)Only with: Model 402C modified by STC SA927NW; Model 414A modified by STC SA892NW.
2009-16-03	Teledyne Continental Motors (TCM) IO-520, TSIO-520, and IO-550 Series Reciprocating…	Sep 9, 2009	Engine (TSIO-520 SER)Only with: SAP investment cast cylinder assemblies P/Ns SA52000-A1, SA52000-A20P, SA52000-A21P, SA52000-A22P, SA52000-A23P, SA55000-A1, or SA55000-A20P installed.

Show all 9 ADs

AD	Subject	Effective	Applies to
2005-20-25	The Cessna Aircraft Company Models 401, 401A, 401B, 402, 402A, 402B, 402C, 404, 411…	Nov 9, 2005	Airframe (402C)Certain serial numbers: 401 655; 401 401-0001–401-0322; 401A 655; 401A 401A0001–401A0132; 401B 401B0001–401B0221; 402 402-0001–402-0322; …. Only with: Equipped with an avionics bus circuit breaker switch P/N CM3589-50, 593-250-101, 593-250-102, W31-X2M5A-50, or W31-X1000-50.
2005-12-13	Cessna Aircraft Company Models 402C and 414A Airplanes	Jun 22, 2005	Airframe (402C)
2000-01-16	Cessna Aircraft Company 300 and 400 Series Airplanes	Feb 15, 2000	Airframe (402C)
98-04-28	Cessna Aircraft Company Models T303, 310R, T310R, 335, 340A, 402B, 402C, 404, F406, 414…	Mar 13, 1998	Airframe (402C)

AI-extracted — verify against original. Matched from each AD's applicability section; ADs replaced by a later AD are left out.

Service Difficulty Reports (10)

Reports of failures and defects that operators and repair stations sent to the FAA since 1995. A report describes one finding; it is not an accident.

Nacelles and pylons · beam · crackedApr 21, 2026
DURING MAINTENANCE A CRACK WAS VISUALLY DISCOVERED ON THE INBOARD FACE OF THE RIGHT HAND INBOARD ENGINE BEAM IN THE AREA OF THE VERTICAL ATTACH CHANNELS FOR THE CROSSOVER BEAM. THIS CRACK WAS DISCOVERED AFTER CHANGING THE CROSSOVER BEAM VERTICAL ATTACH BRACKET P/N: 5654107-15 AND THEREFORE NOT…
From FAA Service Difficulty Reports; matched by N-number and serial number.
Wings · fitting · corrodedDec 2, 2022
DURING MAINTENANCE AN AREA OF CORROSION WAS VISUALLY IDENTIFIED ON THE TOP EDGE OF THE VERTICAL LEG OF THE FORWARD LEFT HAND LOWER AFT WING FITTING. CORROSION MEASURES APPROXIMATELY 1.25 INCHES LONG, WITH A MAX DEPTH OF APPROXIMATELY .017 INCHES DEEP AND IS CONSISTENT WITH CORROSION DAMAGE FOUND…
From FAA Service Difficulty Reports; matched by N-number and serial number.
Reciprocating engine · exhaust valve · damagedNov 4, 2016
CYLINDER REMOVED DUE TO LOW COMPRESSION AT INSPECTION; EXHAUST VALVE DISPLAYS EVIDENCE OF HEAT DAMAGE.
From FAA Service Difficulty Reports; matched by N-number and serial number.

Show all 10 reports

Reciprocating engine · exhaust valve · damagedJul 22, 2016
CYLINDER REMOVED DUE TO LOW COMPRESSION AT INSPECTION. EXHAUST VALVE CRACKED AND DISPLAYS EVIDENCE OF HEAT DAMAGE.
From FAA Service Difficulty Reports; matched by N-number and serial number.
Landing gear · drag brace · crackedAug 15, 2013
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 PENETRANT. THIS CRACK WAS FOUND TO BE BEYOND LIMIT ALLOWABLE. THIS UNIT HAS BEEN SCRAPPED & A REPLACEMENT DRAG BRACE HAS BEEN INSTALLED IN ACFT.
From FAA Service Difficulty Reports; matched by N-number and serial number.
Landing gear · drag brace · crackedNov 28, 2012
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. THIS CRACK WAS FOUND TO BE BEYOND LIMIT ALLOWABLE OF MEB91-11R1. THIS UNIT HAS BEEN SCRAPPED & A REPLACEMENT DRAG BRACE HAS BEEN INSTALLED…
From FAA Service Difficulty Reports; matched by N-number and serial number.
Electrical power · volt regulator · failedOct 25, 2012
PILOT REPORTED THAT DURING CRUISE FLIGHT, BOTH ALTERNATORS DROPPED OFF LINE AND A SMELL OF SMOKE WAS NOTED IN THE COCKPIT. THE ACFT SUBSEQUENTLY DIVERTED AND LANDED SAFELY. UPON MX INSPECTION, INITIAL C/A OF SUSPECTED OVER VOLTAGE RELAY SHORTING AGAINST PANEL, ADJUSTED CLEARANCE FOR PANEL, AS WELL…
From FAA Service Difficulty Reports; matched by N-number and serial number.
Lights · transistor · shortedJul 24, 2012
WHILE IN CRUISE FLIGHT, THE PILOT REPORTED THE OVERHEAD LIGHT ASSY ON THE F/O SIDE SHORTING OUT. THE PILOT THEN DEACTIVATED THE SYSTEM BY DEACTIVATING THE CIRCUIT BREAKER. UPON ARRIVAL THE ACFT WAS INSPECTED BY MX WHERE THE FIRST OFFICER SIDE OVERHEAD LIGHT RESISTOR AND TRANSISTOR WERE REPLACED.
From FAA Service Difficulty Reports; matched by N-number and serial number.
Landing gear · drag brace · crackedFeb 8, 2011
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 PENETRANT. THIS CRACK WAS FOUND TO BE WITHIN ALLOWABLE LIMIT. THIS UNIT HAS BEEN REPAIRED IAW PROCEDURE OUTLINED IN MEB941-11R1 & RETURNED TO…
From FAA Service Difficulty Reports; matched by N-number and serial number.
Ice and rain protection · circuit breaker · burnedJun 3, 2008
ELECTRICAL ODOR AND SMOKE IN CABIN DURING APPROACH. SUBSEQUENT INSPECTION FOUND LOOSE SCREW SECURING WIRE TO CIRCUIT BREAKER TERMINAL AND EVIDENCE OF ARCING. (K)
From FAA Service Difficulty Reports; matched by N-number and serial number.

Sources

FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 18, 2026
NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 18, 2026
FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026

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