# NTSB LAX94LA250: Cessna 172, N7112T, Suisun City, CA, June 11, 1994

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: June 11, 1994, 15:00 local (22:00 UTC)
- Place: Suisun City, CA
- Coordinates: 38.190814, -121.929763 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.1908&lon=-121.9298&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report December 19, 1994
- Report: Approved by Office Director
- NTSB case key (mKey): 28770
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX94LA250
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/28770/pdf
- Page: https://openairdocs.org/ntsb/LAX94LA250

## Probable cause

undetermined.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- In flight collision with terrain/water, cruise
  - terrain condition - water
  - reason for occurrence undetermined (cause)

## Analysis

THE PILOT WAS CONDUCTING A CROSS-COUNTRY FLIGHT AT 4,500 FEET MEAN SEA LEVEL AND DOES NOT REMEMBER ANY FURTHER EVENTS UNTIL THE AIRCRAFT CRASHED INTO A MARSH AREA, ABOUT 20 MINUTES AFTER DEPARTURE.  THE AIRPLANE WAS DESTROYED AND THE PILOT RECEIVED MINOR INJURIES.  THE PILOT REPORTED TO LAW ENFORCEMENT PERSONNEL THAT HE THOUGHT HE MAY HAVE FALLEN ASLEEP.

## Factual narrative

On June 11, 1994, about 1500 hours Pacific daylight time, a Cessna 172, N7112T, crashed about 2 miles south of Suisun City, California, in the Grizzly Island Wildlife Area.  The airplane was being operated as a visual flight rules (VFR) cross-country personal flight to Santa Rosa, California, when the accident occurred.  The airplane, operated by Santa Rosa Aircraft Sales, was destroyed.  The certificated private pilot, the sole occupant, received minor injuries.  Visual meteorological conditions prevailed.  The flight originated at the Stockton Metropolitan Airport, Stockton, California, about 1440 hours.

The pilot reported he last remembered flying about 4,500 feet mean sea level (msl) in cruise flight.  The next memory that the pilot reported was "climbing out of the aircraft at the crash site."  The pilot reported to a responding deputy from the Solano County Sheriff's Department that he thought he fell asleep.  The reporting deputy stated that the pilot was "responsive but appeared disoriented."

## Aircraft

- Registration: [N7112T](https://openairdocs.org/deregistered/N7112T-1994-10-03), registration cancelled 1994-10-03, S/N 46712 (OpenAirDocs)
- Reported make and model: CESSNA 172
- Registry model: [Cessna 172](https://openairdocs.org/model/cessna-172) (registry code 2072402) (OpenAirDocs)
- Category: Airplane
- Serial number: 46712
- Airframe hours: 2625
- Engines: CONTINENTAL O-300-A 145 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Operator: Gregory Calvert, doing business as Santa Rosa Aircraft Sales
- Registered owner: Gregory Calvert
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, June 25, 1993, 160 hours before
- Departed: SCK, STOCKTON, CA
- Destination: STS, SANTA ROSA, CA

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 18; private; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: left; flight hours: 375 total, 177 in this make and model, 170 as pilot in command, 44 in the last 90 days, 15 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 230° at 21 knots, gusting 27
- Visibility: 25 statute miles
- Lowest ceiling: none
- Temperature: 82 °F, dew point 57 °F
- Altimeter: 29.00 inHg
- Observed at: SUU, 8 nm away

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19940611015099A](https://openairdocs.org/incident/19940611015099A), Jun 11, 1994: Cessna 172, Suisun City, CA, Destroyed. Indicates pilot fell asleep at cruise and crashed. Pilot not aware descent. Appeared disoriented after crash.

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.

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