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Aircraft record

N121PB1981 Cessna 402C

DeregisteredUnclaimedSource: FAA, updated Oct 17, 2026

This N-number isn't registered right now. Below is its last known registration, canceled Dec 10, 2023.

Safety record in brief:2 NTSB events (substantial damage at worst, latest Feb 2010)9 ADs may apply10 service difficulty reports

Registration
Deregistered
Last based in
Hyannis, MA
owner city / state
Engine
TSIO-520 SER · 300 hp
Cont Motor
Owners
1
since 2018
NTSB events
2
substantial, 2010
ADs may apply
9
confirm with A&P
Service reports
10
since 1995

Registration

FAA Aircraft Registry · Oct 17, 2026
Last registered owner
Hyannis Air Services INC DBA
Owner type
Corporation
City, state
Hyannis, MA
Certificate issued
Oct 24, 2018
Canceled
Dec 10, 2023
Airworthiness
Standard · Normal
Airworthiness date
Jul 7, 1981

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
1981
Serial number
402C0507
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
A058B0

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
  1. 2018 – 2023Hyannis Air Services INC DBAHyannis, MA

Individual owners are shown by city and state only.

Safety record

NTSB · Oct 15, 2026 · FAA ADs · Oct 17, 2026 · SDRs · Oct 16, 2026

NTSB events (2)

Accident · substantial damage

Feb 1, 2010 · Watertown, NY

The pilot's decision to continue the approach with a known anomaly with the left airspeed indicator. Contributing to the accident was an undetermined malfunction of the left airspeed indicator and the condition of the runway, resulting in decreased braking capability.

Damage
Substantial
Injuries
None
Report
ERA10LA128

From NTSB records; matched by serial number.Read NTSB report (search CAROL for ERA10LA128)

Incident · minor damage

Jan 25, 1997 · Provincetown, MA

the pilot's inadequate inflight planning/decision, and his misjudgment of speed and distance. Related factors were: fog, tailwind, and soft terrain on the overrun area at the end of the runway.

Damage
Minor
Injuries
None
Report
IAD97IA045

From NTSB records; matched by serial number.Read NTSB report (search CAROL for IAD97IA045)

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.

ADSubjectEffectiveApplies to
2017-10-09Textron Aviation Inc. AirplanesJun 7, 2017Airframe (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.
2016-17-08Elevator Tab Control SystemSep 12, 2016Airframe (402C)
2015-07-03Nacelles/PylonsApr 24, 2015Airframe (402C)Certain serial numbers: 402C 402C0001–402C1020; 414A 414A0001–414A1212
2012-23-01WingsDec 26, 2012Airframe (402C)Only with: Model 402C modified by STC SA927NW; Model 414A modified by STC SA892NW.
2009-16-03Teledyne Continental Motors (TCM) IO-520, TSIO-520, and IO-550 Series Reciprocating…Sep 9, 2009Engine (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
ADSubjectEffectiveApplies to
2005-20-25The Cessna Aircraft Company Models 401, 401A, 401B, 402, 402A, 402B, 402C, 404, 411…Nov 9, 2005Airframe (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.
2005-12-13Cessna Aircraft Company Models 402C and 414A AirplanesJun 22, 2005Airframe (402C)
2000-01-16Cessna Aircraft Company 300 and 400 Series AirplanesFeb 15, 2000Airframe (402C)
98-04-28Cessna Aircraft Company Models T303, 310R, T310R, 335, 340A, 402B, 402C, 404, F406, 414…Mar 13, 1998Airframe (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.

  • Reciprocating engine · exhaust valve · damagedNov 5, 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.
  • Reciprocating engine · exhaust valve · damagedSep 13, 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.
  • Reciprocating engine · exhaust valve · damagedJun 21, 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 · damagedJun 15, 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.
  • Wings · spar cap · corrodedJun 12, 2014

    SERVICE KIT SK402-47, CONCURRENT WITH AD2005-12-13 & MEB02-5, WAS INSTALLED ON 07/24/2003 AT AFT 20,019.7 AS TERMINATING ACTION FOR AD2005-05-52. EDDY CURRENT PRESCRIBED IN SID 57-10-16 REVEALED MULTIPLE AREAS OF SUBSURFACE CORROSION IN LWR FWD SPAR CAP STRAP, PN 5292029-1, WHICH WERE NOT EVIDENT…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Wings · spar cap · corrodedJun 12, 2014

    SERVICE KIT SK402-47, CONCURRENT WITH AD2005-12-13 & MEB02-5, WAS INSTALLED ON 07/24/2003 AT AFTT 20,019.7 AS TERMINATING ACTION FOR AD2005-05-52. EDDY CURRENT PRESCRIBED IN SID 57-10-16 REVEALED MULTIPLE AREAS OF SUBSURFACE CORROSION IN LWR FWD SPAR CAP STRAP, PN 5292029-1, WHICH WERE NOT EVIDENT…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Reciprocating engine · connecting rod · brokenDec 23, 2010

    CREW REPORTED, CLIMBING THROUGH 6300' MSL, LT ENGINE BEGAN TO SHUDDER AND RUN ROUGH, EGT WENT TO ZERO, AND OIL PRESSURE BEGAN DROPPING. SMOKE AND OIL STARTED COMING FROM TOP OF THE ENGINE COWL. CREW SECURED ENGINE AND RETURNED TO BLOCK. LANDING WAS UNEVENTFUL. MX INSPECTED LT ENGINE, FOUND NR 2…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Reciprocating engine · housing · fracturedAug 10, 2001

    ON FINAL APPROACH, CREW NOTICED OIL LEAKING FROM LEFT ENGINE COWL. OIL PRESSURE AND TEMPERATURE WERE INDICATING NORMAL. CREW SHUT DOWN LEFT ENGINE AS A PRECAUTION AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND SCAVENGE PUMP HOUSING FRACTURED AND LEAKING. TEAR DOWN REVEALED SCAVENGE PUMP DRIVEN…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Air conditioning and pressurization · resistor · failedDec 13, 1999

    CREW TURNED ON HEATER PRIOR TO DEPARTURE FROM HYA. ON CLIMB-OUT, PILOT NOTICED FUNNY SMELL, TURNED OFF HEATER. PASSENGERS INFORMED CREW OF SMOKE IN CABIN. RETURNED TO HYA FOR UNEVENTFUL LANDING. MAINTENANCE FOUND HEATER FAN DROP RESISTOR BURNED. REMOVED AND REPLACED ASSY, HEATER FAN SYSTEM CHECKS…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · fitting · corrodedMay 15, 1996

    DURING ROUTINE INSPECTION, NOTED LOWER FORWARD CARRY-THROUGH SPAR FITITNG EXFOLIATING DUE TO INTERGRANULAR CORROSION.

    From FAA Service Difficulty Reports; matched by N-number and serial number.

Sources

  • FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 17, 2026
  • NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
  • FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 17, 2026
  • FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026

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