# NTSB LAX84FA472: Cessna 310, N381LS, Redlands, CA, September 8, 1984

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Field investigation · Final report
- Date: September 8, 1984, 07:52 local (14:52 UTC)
- Place: Redlands, CA
- Coordinates: 34.060035, -117.169586 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.0600&lon=-117.1696&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 2 fatal
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 23999
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX84FA472
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/23999/pdf
- Page: https://openairdocs.org/ntsb/LAX84FA472

## Sequence of events

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

- Loss of engine power(partial) - nonmechanical, takeoff - initial climb
  - fuel system,injector - contamination (cause)
  - maintenance,annual inspection - inadequate, other maintenance personnel (cause)
- Loss of control - in flight, takeoff - initial climb
  - procedures/directives - not followed, dual student (cause)
  - lack of total experience, dual student (cause)
  - airspeed(vyse) - not maintained, pilot in command (cause)
  - lack of total experience, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

GND WITNESSES OBSVD AN INITIAL ERRATIC TAKEOFF GND ROLL. AFTER THE ACFT REACHED 200 FT IT EXPERIENCED A POWER LOSS ON THE LEFT ENGINE. THE ACFT STALLED AS IT TURNED LEFT, ENTERED INTO AN UNCONTROLLED DESCENT AND CRASHED. THE POST IMPACT FIRE CONSUMED THE COCKPIT/CABIN AREA. THE ENGINE EXAM DISCLOSED UNIDENTIFIED CONTAMINATES IN THE FUEL METERING UNIT; ONE FUEL NOZZLE WAS PLUGGED. AN ANNUAL INSP WAS RECENTLY PERFORMED. A NON-CERTIFICATED STUDENT PILOT OCCUPIED THE LEFT FRONT SEAT. THE CERTIFICATED PVT PILOT, WHO DOES NOT HOLD A FLIGHT INSTRUCTOR CERTIFICATE, OCCUPIED THE RIGHT FRONT SEAT; HIS CLASS III MEDICAL CERTIFICATE HAD EXPIRED.

## Aircraft

- Registration: N381LS (not matched to a registry record)
- Reported make and model: CESSNA 310
- Category: Airplane
- Serial number: 310H0123
- Engines: CONTINENTAL IO-520 260 horsepower reciprocating
- Damage: Destroyed
- Fire: On-Ground
- Flight: Personal, Part 91
- Registered owner: Robert W. Post
- Airworthiness certificate: Standard, Normal
- Destination: CORONA, CA
- Airport: Redlands, runway 26, 4,500 × 80 ft, macadam

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 49; private; airplane ratings: multi-engine land, single-engine land; medical: class 2, expired; seat: right; toxicology performed

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 25 statute miles
- Lowest ceiling: none
- Temperature: 81 °F

## 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 19840908047439A](https://openairdocs.org/incident/19840908047439A), Sep 8, 1984: Cessna 310H, Redlands, CA, Destroyed. Ferry for maintenance. Illegal instruction. Engine sputtered. Diving turn to impact. Right engine compression low.

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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