Cessna 150M N704GL

Summary

On 17 July 1982 at about 16:30 local time, a Cessna 150M registered N704GL, operated by Rialto AVN. Inc., was involved in an accident near Lake Isabella, California, United States. 2 people were on board and nobody was injured. The aircraft was substantially damaged. No probable cause statement is available for this record.

Date

17 July 1982 at 16:30

Classification

Accident

Location

Lake Isabella, California, United States

Coordinates

35.6400, -118.4607

Aircraft

Cessna 150M

Registration

N704GL

Category

Airplane

Engines

1

Operator

Rialto AVN. Inc.

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Kernville → Rialto

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

LAX82FA261

Nobody was injured.

The NTSB has not published a probable cause for this record. No probable cause statement is present in the source data.

Nothing about the cause is stated here that is not in the source record.

Read the full NTSB narrative

AFTER TAKEOFF, THE ACFT WAS FLOWN APRX 5 MI SOUTH OF THE ARPT & WAS AT ABOUT 1000 FT ABOVE A LAKE WHEN THE ENG BEGAN VIBRATING VIOLENTLY & LOSING POWER. THE PLT TURNED TOWARD THE SHORE & TRIED VARIOUS MIXTURE SETTINGS IN AN ATTEMPT TO CORRECT THE PROBLEM. SUBSEQUENTLY, DURING A FORCED LANDING, THE ACFT COLLIDED WITH A FENCE. AN EXAM OF THE ENG REVEALED THAT THE STARTER GEAR WAS DETACHED FROM THE STARTER SHAFT. METAL FRAGMENTS WERE FOUND IN NUMEROUS AREAS OF THE ENG, INCLUDING THE OIL SCREEN, WHICH HAD COLLAPSED. THE OIL PUMP GEAR CAVITIES WERE SCORED, AS WELL AS THE CRANKSHAFT MAIN JOURNAL BEARINGS, WHICH EXHIBITED EXTENSIVE COPPER LAYER EXPOSURE. THE FRONT JOURNAL BEARINGS WERE ALSO EMBEDDED WITH ALUMINUM. THE #1 CONNECTING ROD HAD SEPARATED FROM ITS CRANKPIN. THE CRANKPIN WAS DISCOLORED & HAD FRAGMENTS OF STEEL WELDED TO THE JOURNAL. BOTH CONNECTING ROD CAP BOLTS OF THE FAILED ROD WERE NECKED DOWN AT THE FRACTURE FACES.

Quoted verbatim from the NTSB record.