# N121PB: 1981 Cessna 402C, registration cancelled 2023-12-10 - Type: Cancelled registration (FAA registry, deregistered aircraft) - Cancelled: December 10, 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: 402C0507 - Year built: 1981 - Type of aircraft: Fixed wing multi engine - Engine type: Reciprocating - Airworthiness: Standard, normal - Airworthiness date: July 7, 1981 - Certificate issued: October 24, 2018 - Last registry action: June 16, 2023 - Mode S code: A058B0 - Owners when cancelled: [Hyannis Air Services Inc DBA](https://openairdocs.org/faa-owner/HYANNIS%20AIR%20SERVICES%20INC%20DBA), [Cape Air](https://openairdocs.org/faa-owner/CAPE%20AIR) - 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/N121PB - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=121PB - Page: https://openairdocs.org/deregistered/N121PB-2023-12-10 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 (12) Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. - [SDR HYIA20210421001](https://openairdocs.org/sdr/HYIA20210421001), Apr 18, 2021: SPRING. BROKEN. THE PILOT REPORTED THE UPPER PASSENGER DOOR OPENING IN FLIGHT. THE FLIGHT WAS THEN DIVERTED TO KHYA, WHERE MAINTENANCE INSPECTED AND FOUND THE EXTERIOR DOOR HAN - [SDR HYIA20191011001](https://openairdocs.org/sdr/HYIA20191011001), Oct 11, 2019: FITTING. CRACKED. DURING MAINTENANCE A CRACK WAS IDENTIFIED ON THE INBOARD LEG OF THE RIGHT HAND OUTBOARD NACELLE FITTING, (P/N: 5292029-24) THIS CRACK MEASURES APPROXIMATELY .02 - [SDR HYIA20161109203](https://openairdocs.org/sdr/HYIA20161109203), Nov 5, 2016: EXHAUST VALVE. DAMAGED. CYLINDER REMOVED DUE TO LOW COMPRESSION AT INSPECTION; EXHAUST VALVE DISPLAYS EVIDENCE OF HEAT DAMAGE. - [SDR HYIA20160913136](https://openairdocs.org/sdr/HYIA20160913136), Sep 13, 2016: EXHAUST VALVE. DAMAGED. CYLINDER REMOVED DUE TO LOW COMPRESSION AT INSPECTION. EXHAUST VALVE DISPLAYS EVIDENCE OF HEAT DAMAGE. - [SDR HYIA20160802010](https://openairdocs.org/sdr/HYIA20160802010), Jun 21, 2016: EXHAUST VALVE. DAMAGED. CYLINDER REMOVED DUE TO LOW COMPRESSION AT INSPECTION. EXHAUST VALVE DISPLAYS EVIDENCE OF HEAT DAMAGE. - [SDR HYIA20160802009](https://openairdocs.org/sdr/HYIA20160802009), Jun 15, 2016: EXHAUST VALVE. DAMAGED. CYLINDER REMOVED DUE TO LOW COMPRESSION AT INSPECTION; EXHAUST VALVE DISPLAYS EVIDENCE OF HEAT DAMAGE. - [SDR HYIA20140614002](https://openairdocs.org/sdr/HYIA20140614002), Jun 12, 2014: SPAR CAP. CORRODED. 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 - [SDR HYIA20140614001](https://openairdocs.org/sdr/HYIA20140614001), Jun 12, 2014: SPAR CAP. CORRODED. 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 P - [SDR HYIA121PBLFTENG](https://openairdocs.org/sdr/HYIA121PBLFTENG), Dec 23, 2010: CONNECTING ROD. BROKEN. 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 CO - [SDR 2002FA0000105](https://openairdocs.org/sdr/2002FA0000105), Aug 10, 2001: HOUSING. FRACTURED. 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 PRECAUTI - [SDR 20000331SH005](https://openairdocs.org/sdr/20000331SH005), Dec 13, 1999: RESISTOR. FAILED. 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. RETUR - [SDR 96ZZZX2971](https://openairdocs.org/sdr/96ZZZX2971), May 15, 1996: FITTING. CORRODED. DURING ROUTINE INSPECTION, NOTED LOWER FORWARD CARRY-THROUGH SPAR FITITNG EXFOLIATING DUE TO INTERGRANULAR CORROSION. ## 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 ERA10LA128](https://openairdocs.org/ntsb/ERA10LA128), Feb 1, 2010: Cessna 402C (N121PB), Watertown, NY, substantial damage. Probable cause: 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… - [NTSB IAD97IA045](https://openairdocs.org/ntsb/IAD97IA045), Jan 25, 1997: Cessna 402C (N121PB), Provincetown, MA, incident, minor damage. Probable cause: 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. ## FAA accident and incident reports (6) 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 20100201026919A](https://openairdocs.org/incident/20100201026919A), Feb 1, 2010: Cessna 402C (N121PB), Watertown, NY, Substantial damage. Aircraft was cleared to land at Watertown International Airport by approach. The pilot had received the airport weather from the ASOS as bein wind 230 at 8… - [Incident 19970125000799I](https://openairdocs.org/incident/19970125000799I), Jan 25, 1997: Cessna 402C (N121PB), Provincetown, MA, Minor damage. Overran runway landing. Low ceiling fog standing water and 15 knot tailwind factors. Hdroplaned. - [Incident 19900724034689I](https://openairdocs.org/incident/19900724034689I), Jul 24, 1990: Cessna 402C (N121PB), New Bedford, MA, Minor damage. Struck a seagull with left wing tip during landing rollout. Continued to taxi to gate. - [Incident 19861205081749I](https://openairdocs.org/incident/19861205081749I), Dec 5, 1986: Cessna 402C (N121PB), Sturgeon Bay, WI, Minor damage. Struck a deer while attempting to stop aircraft after aborting takeoff. - [Incident 19850207008329I](https://openairdocs.org/incident/19850207008329I), Feb 7, 1985: Cessna 402C (N121PB), New Bedford, MA. Fuel flow gauge indicated low for takeoff. Aborted. Water in fuel flow gauge line. Cleaned and purged line. - [Incident 19850205008339I](https://openairdocs.org/incident/19850205008339I), Feb 5, 1985: Cessna 402C (N121PB), Hyannis, MA. Left main gear would not extend. Rejected landing. Gear down lock indicator switch replaced. . --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.