Hiller UH-12D N67182

Summary

On 24 September 1985 at about 12:15 local time, a Hiller UH-12D registered N67182 was involved in an accident near Breese, Illinois, United States. One person was on board and nobody was injured. The aircraft was substantially damaged. No probable cause statement is available for this record.

Date

24 September 1985 at 12:15

Classification

Accident

Location

Breese, Illinois, United States

Coordinates

38.6096, -89.5195

Aircraft

Hiller UH-12D

Registration

N67182

Category

Helicopter

Engines

1

Operator

Not recorded

Operating rule

Part 137: Agricultural

Purpose of flight

Aerial Application

Phase of flight

Not recorded

Route

Breese → Unknown

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

CHI85FEV04

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

THE PLT REPORTED THAT THE ENG BEGAN LOSING POWER WHILE HE WAS EN ROUTE AT AN ALT OF APRX 200 FT AGL. HE TURNED & INITIATED AN AUTOROTATION TO A ROAD CONSTRUCTION SITE. THE HELICOPTER LANDED TAIL LOW. SUBSEQUENTLY, THE TAIL BOOM WAS CHOPPED OFF & THE HELICOPTER BOUNCED & ROTATED 180 DEG. AN EXAM OF THE ENG REVEALED THE #4 PISTON HAD FAILED. THE PISTON HAD BURNT & MOLTEN ALUMINUM HAD TRANSFERRED TO THE STEM OF THE EXHAUST VALVE CAUSING IT TO STICK OPEN.

Quoted verbatim from the NTSB record.