Cessna T210N N5436Y

Summary

On 11 June 1995 at about 20:30 local time, a Cessna T210N registered N5436Y was involved in an accident near Fall River Mill, California, United States. 2 people were on board and one was seriously injured, one had minor injuries. The aircraft was destroyed. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

11 June 1995 at 20:30

Classification

Accident

Location

Fall River Mill, California, United States

Coordinates

41.0100, -121.4691

Aircraft

Cessna T210N

Registration

N5436Y

Category

Airplane

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Instructional

Phase of flight

Not recorded

Route

Klamath Falls → Cameron Park

Aircraft damage

Destroyed

Weather

VMC

Light

Day

NTSB number

LAX95LA207

1 person was seriously injured.

Fatigue failure of the No. 2 lower connecting rod bolt as a result of improper torque during the last engine overhaul.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

AFTER LEVELING OFF AT CRUISE, THE ENGINE STARTED RUNNING ROUGH. A 2-INCH REDUCTION IN MANIFOLD PRESSURE RESULTED IN A METALLIC SOUND. ANOTHER 2-INCH REDUCTION RESULTED IN A LOUDER METALLIC SOUND. THE MANIFOLD PRESSURE THEN FELL TO 20 INCHES, THE OIL PRESSURE DROPPED TO ZERO, AND OIL BEGAN TO SPLATTER ON THE WINDSCREEN. A FORCED LANDING WAS MADE IN A LAVA FIELD SURROUNDED BY TREES. AFTER TOUCHING DOWN THE AIRCRAFT SLID AND NOSED OVER ON ITS BACK. POSTACCIDENT INSPECTION REVEALED THAT THE NO. 2 LOWER CONNECTING ROD BOLT HAD FRACTURED. MEASUREMENTS PERFORMED BY THE MANUFACTURER INDICATED THE ROD BOLT HAD BEEN UNDERTORQUED. THE ENGINE WAS LAST OVERHAULED 509 HOURS PRIOR TO THE ACCIDENT.

Quoted verbatim from the NTSB record.