# Accident 19900809031849A: Cessna 421B, Concord, CA, August 9, 1990

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: August 9, 1990, 13:05 local time
- Place: Concord, CA
- Airport: Buchanan Field
- Damage: Substantial damage
- Phase of flight: Roll-Out (Fixed Wing)
- Operating rules: General operating rules (Part 91)
- Location: 37.9996° N, 122.0291° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=37.9996&lon=-122.0291&mi=10
- Aircraft: N76SH, a cancelled registration (https://openairdocs.org/deregistered/N76SH-1992-02-25) (OpenAirDocs)
- Registry model: Cessna 421B (registry code 2076014, https://openairdocs.org/model/cessna-421b) (OpenAirDocs)
- Reported make and model: CESSNA 421B
- Reported engine: CONT GTSIO520H
- People aboard: 2
- Fatal injuries: 0
- Pilot flight hours: 2,005 total, 75 in this make and model, 316 in the last 90 days
- NTSB investigation: [NTSB LAX90LA288](https://openairdocs.org/ntsb/LAX90LA288) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19900809031849A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

REPORTED ELECTRIC POWER INTERMITTANT. BELEIVED GEAR DOWN AND LOCKED. COLLAPSED LANDING. FAILED TO HAND CRANK GEAR.

## The NTSB's investigation of this event (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 LAX90LA288](https://openairdocs.org/ntsb/LAX90LA288), Aug 9, 1990: Cessna 421 (N76SH), Concord, CA, substantial damage. Probable cause: THE PILOT'S FAILURE TO FOLLOW THE ELECTRICAL SYSTEM FAILURE CHECKLIST. CONTRIBUTING TO THIS ACCIDENT WAS THE TOTAL ELECTRICAL FAILURE FOR UNDETERMINED REASONS AND THE LANDING GEAR BEING UNLOCKED.

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. For accidents, the NTSB's own investigation is the fuller record.

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