# NTSB LAX83LA005: Beech A36, N4603A, Rialto, CA, October 3, 1982

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: October 3, 1982, 14:30 local (21:30 UTC)
- Place: Rialto, CA
- Coordinates: 34.100234, -117.380325 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.1002&lon=-117.3803&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report October 3, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 72378
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX83LA005
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/72378/pdf
- Page: https://openairdocs.org/ntsb/LAX83LA005

## Sequence of events

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

- Loss of engine power(total) - mech failure/malf, cruise - normal
  - engine assembly,crankcase - fatigue (cause)
  - engine assembly,crankcase - failure,total (cause)
- Forced landing, landing - flare/touchdown
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - ditch (contributing factor)

## Analysis

WHILE CRUISING AT 9500 FT MSL, THE ENGINE BEGAN RUNNING ROUGH. THE PILOT DIVERTED TO RIALTO MUNICIPAL AIRPORT FOR A PRECAUTIONARY LANDING. WHILE ON BASE LEG, THE ENGINE QUIT COMPLETELY. FROM THAT POSITION, THE PILOT WAS UNABLE TO REACH THE RUNWAY. THE AIRCRAFT TOUCHED DOWN ABOUT 1/4 MILE SHORT, AND DURING THE LANDING ROLL, IT COLLIDED WITH A DITCH. AN INVESTIGATION REVEALED THAT THE ENGINE CRANKSHAFT HAD FAILED FROM FATIGUE. PREVIOUSLY, THE AIRCRAFT HAD BEEN INVOLVED IN A GEAR-UP LANDING. NO RECORD WAS FOUND TO VERIFY AN INSPECTION OF THE CRANKSHAFT IN ACCORDANCE WITH THE ACCEPTED PRACTICES FOLLOWING A PROPELLER STRIKE.

## Aircraft

- Registration: N4603A (not matched to a registry record)
- Reported make and model: BEECH A36
- Category: Airplane
- Serial number: E-209
- Airframe hours: 2900
- Engines: CONTINENTAL IO-520-BA 285 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: Eagle Aviation
- Registered owner: Jetton & Miller
- Departed: LGB, LONG BEACH, CA
- Destination: LAS, LAS VEGAS, NV
- Airport: L67, Rialto Municipal, runway 24, 3,600 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 51; airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; flight hours: 15,280 total, 3,000 in this make and model, 115 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 240° at 5 knots
- Visibility: 15 statute miles
- Temperature: 158 °F
- Altimeter: 29.00 inHg

## 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 19821003050419A](https://openairdocs.org/incident/19821003050419A), Oct 3, 1982: Beech A36, Rialto, CA, Substantial damage. Engine failed due to a broken crankshaft. Landed short of a runway. Aircraft prior prop strike from gear up landing.

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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