Hiller UH-12A N8178H

Summary

On 27 August 2023 at about 23:00 local time, a Hiller UH-12A registered N8178H was involved in an accident near Mosby, Missouri, United States. One person was on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

27 August 2023 at 23:00

Classification

Accident

Location

Mosby, Missouri, United States

Nearest airport

Midwest National Air Center Ai (GPH)

Coordinates

39.3325, -94.3096

Aircraft

Hiller UH-12A

Registration

N8178H

Category

Helicopter

Year built

1950

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

CEN23LA383

Nobody was injured.

The pilot’s failure to maintain adequate rotor rpm which resulted in a loss of control and impact with terrain.

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

Read the full NTSB narrative

The pilot reported that during a hover taxi, he inadvertently allowed the engine rpm to decrease. He increased the throttle, but the helicopter landed hard on its skids in the grass and the tail rotor impacted the ground. The ground strike resulted in substantial damage to the tail rotor blades and tailboom assembly. The pilot reported that there were no preaccident mechanical failures or malfunctions with the helicopter that would have precluded normal operation. The pilot noted that a better scan of the engine instruments could have prevented the accident.

Quoted verbatim from the NTSB record.