Cessna 421 N76SH
9 August 1990 · Concord, California, United States · No injuries
Summary
On 9 August 1990 at about 20:05 local time, a Cessna 421 registered N76SH was involved in an accident near Concord, California, United States. 2 people were on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 20:05
- Classification
- Accident
- Location
- Concord, California, United States
- Nearest airport
- Concord (CCR)
- Coordinates
- 37.9996, -122.0291
- Aircraft
- Cessna 421
- Registration
- N76SH
- Category
- Airplane
- Engines
- 2
- Operator
- Not recorded
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Business
- Phase of flight
- Not recorded
- Route
- Unknown → Monterey
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- LAX90LA288
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 2 | 0 | 0 | 0 | 2 |
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.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
SHORTLY AFTER DEPARTING CONCORD AIRPORT THE PILOT EXPERIENCED AN INTERMITTENT ELECTRICAL FAILURE FOLLOWED BY A TOTAL ELECTRICAL FAILURE. DURING THE INTERMITTENT PHASE THE PILOT ELECTRICALLY EXTENDED THE LANDING GEAR. DURING THE EXTENSION THE AIRPLANE SUSTAINED A TOTAL ELECTRICAL FAILURE. THE PILOT RETURNED TO CONCORD AIRPORT AND LANDED. UPON TOUCHDOWN THE MAIN LANDING GEAR COLLAPSED. AFTER THE AIRPLANE CAME TO REST THE PILOT SHUT OFF ALL ELECTRICAL SWITCHES, INCLUDING THE BATTERY/MASTER SWITCH. THE PILOT STATED THAT HE THOUGHT THE LANDING EXTENDED TO THE LOCKED POSITION BEFORE SUSTAINING THE TOTAL ELECTRICAL FAILURE AND WAS UNABLE TO CHECK THE LANDING GEAR WARNING LIGHTS TO DETERMINE THAT THE LANDING GEARS WERE DOWN AND LOCKED. THE PILOT DID NOT FOLLOW THE APPROPRIATE CHECKLIST AND USE THE HANDCRANK TO DETERMINE THAT THE LANDING GEAR WAS IN FACT EXTENDED AND LOCKED.
Quoted verbatim from the NTSB record.
Other Cessna 421 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 8 Aug 1990 | Cessna 421B | El Paso, Texas, United States | Nelson, Walter | No injuries | - |
| 18 Jul 1990 | Cessna 421C | Lancaster, California, United States | Pacifica Corporation | No injuries | - |
| 25 Sep 1990 | Cessna 421B | Jefferson, Georgia, United States | - | Fatal | 3 |
| 22 Sep 1990 | Cessna 421B | Pompano Beach, Florida, United States | - | No injuries | - |
| 1 Apr 1990 | Cessna 421-C | Boulder, Colorado, United States | Rocky Mountain Intensive | Fatal | 2 |
| 9 Nov 1990 | Cessna 421B | Flamingo, Florida, United States | - | Fatal | 3 |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 15 Apr 1990 | Cessna 180 | Soledad, California, United States | - | No injuries | - |
| 10 Oct 1990 | Cessna 150 | Riverside, California, United States | PAR Flight | No injuries | - |
| 17 Apr 1990 | Piper PA46 | Paso Robles, California, United States | Piper Aircraft Corp. | No injuries | - |
| 7 Oct 1990 | Cessna 182M | Bakersfield, California, United States | - | No injuries | - |
| 1 Apr 1990 | Piper J-3 | Creston, California, United States | - | Minor injuries | - |
| 11 Oct 1990 | Bell 47G4 | Merced, California, United States | John W. Myers | Serious injuries | - |