# NTSB LAX83LA433: Cessna 182A, S. Lake Tahoe, CA, September 11, 1983

- Type: NTSB accident investigation
- Date: September 11, 1983, 02:50 UTC, 19:50 local (the day before locally)
- Place: S. Lake Tahoe, CA
- Location: 38.8800° N, 120.0005° W: Placed by OpenAirDocs from NTSB’s distance and direction from LAKE TAHOE (TVL), within about a mile (OpenAirDocs)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 23852
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX83LA433
- NTSB report (PDF): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/23852/pdf
- Page: https://openairdocs.org/ntsb/LAX83LA433

## Analysis

ACCORDING TO THE FLT INSTRUCTOR (CFI), HE & THE STUDENT TOOK OFF WITH 21 GAL OF FUEL ON BOARD. APRX 1.3 HRS. LATER, THE ENG LOST POWER AS THE STUDENT TURNED ONTO FINAL APCH FOR A LANDING. THE CFI TOOK CONTROL OF THE ACFT & MADE A FORCED LANDING ON A RIVER BANK SHORT OF THE RWY. JUST BEFORE TOUCHDOWNM THE ACFT HIT A TREE, THEN AFTER LANDING, IT CAME TO REST IN THE RIVER, NOSE DOWN, IN 1 TO 2 FT OF WATER. NO PREIMPACT/PART FAILURE OR MALFUNCTION WAS FOUND. ACCORDING TO THE PLT'S OPERATING HANDBOOK, THE ENG WOULD CONSUME 12 GAL/HR AT 65% POWER AT 8000 FT. THE STUDENT STATED THAT THE ACFT HAD FLOWN 4 HRS SINCE THE FUEL TANKS WERE TOPPED OFF. THE PLANE HAD A TOTAL USABLE FUEL CAPACITY OF 55 GAL.

## Sequence of events

- Loss of engine power, approach - vfr pattern - base leg/base to final
  - reason for occurrence undetermined (cause)
- Forced landing, landing
- In flight collision with object, landing - flare/touchdown
  - object - tree(s) (contributing factor)
- Nose down, landing
  - terrain condition - rough/uneven (contributing factor)

## Aircraft

- Registration: N4812D, a cancelled registration (https://openairdocs.org/deregistered/N4812D-2012-11-27) (OpenAirDocs)
- Reported make and model: CESSNA 182A
- Registry model: Cessna 182A (registry code 2072704, https://openairdocs.org/model/cessna-182a) (OpenAirDocs)
- Registry engine: Continental O-470 series (registry code 17026, https://openairdocs.org/engine/continental-o-470-series) (OpenAirDocs)
- Category: Airplane
- Serial number: 34912
- Engines: CONTINENTAL O-470-R 230 horsepower
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Airport: TVL, SOUTH LAKE TAHOE, runway 36

## Flight crew

- Pilot; age 33; commercial, flight instructor; medical class 2; hours: 6 24 hours, 4 24 hours in this make and model, 125 90 days, 20 90 days in this make and model, 995 pic, 50 pic in this make and model, 1,101 total, 58 total in this make and model

## Weather

- Conditions: Visual (VMC), Dusk
- Wind: 360° at 2 knots
- Visibility (statute miles): 30
- Temperature (°F): 60.8

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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From OpenAirDocs.org, an independent open copy of NTSB and FAA data. The NTSB's own report is the official record of an investigation.