# N678SW: Cessna 421C, registration cancelled 2022-07-30

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: July 30, 2022
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Cessna 421C](https://openairdocs.org/model/cessna-421c) (registry code 2076016)
- Engine: [Continental GTSIO-520 series](https://openairdocs.org/engine/continental-gtsio-520-series) (registry code 17046)
- Data sheets: [TCDS A7CE](https://openairdocs.org/tcds/A7CE), [TCDS E7CE](https://openairdocs.org/tcds/E7CE) (OpenAirDocs)
- Serial number: 421C1023
- Type of aircraft: Fixed wing multi engine
- Engine type: Reciprocating
- Airworthiness: Standard, normal
- Airworthiness date: April 30, 1991
- Certificate issued: April 12, 2016
- Last registry action: November 12, 2018
- Mode S code: A8FB15
- Owner when cancelled: [M E Mullaly Inc](https://openairdocs.org/faa-owner/M%20E%20MULLALY%20INC)
- Location: [Pacific Grove, CA](https://openairdocs.org/faa-place/CA/Pacific%20Grove)
- Owner type: Corporation
- Owner's area on the map: 36.6191° N, 121.9254° W: Placed by OpenAirDocs at the center of ZIP code 93950, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N678SW
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=678SW
- Page: https://openairdocs.org/deregistered/N678SW-2022-07-30

From the FAA registry file of October 28, 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 421C: https://openairdocs.org/model/cessna-421c.md

## 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 WPR21FA270](https://openairdocs.org/ntsb/WPR21FA270), Jul 13, 2021: Cessna 421C (N678SW), Monterey, CA, destroyed, 2 fatal. Probable cause: The pilot’s failure to maintain airplane control due to spatial disorientation during an instrument departure procedure in instrument meteorological conditions which resulted in a collision with…

## FAA accident and incident reports (1)

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 20210713010719A](https://openairdocs.org/incident/20210713010719A), Jul 13, 2021: Cessna 421C (N678SW), Monterey, CA, Destroyed, 2 fatal. Airman departed runway 10 at Monterey Regional Airport at 1038 PST. During the climb out aircraft flew into terrain at approximately 1042 PST. Pilot and…

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