Hiller UH-12B N1021Y

Summary

On 15 March 1984 at about 17:30 local time, a Hiller UH-12B registered N1021Y was involved in an accident near Ulysses, Kansas, 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

15 March 1984 at 17:30

Classification

Accident

Location

Ulysses, Kansas, United States

Coordinates

37.5708, -101.3501

Aircraft

Hiller UH-12B

Registration

N1021Y

Category

Helicopter

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Ulysses → Unknown

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

MKC84LA102

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 MADE AN AUTOROTATIVE PRECAUTIONARY LANDING AFTER FEELING VIBRATIONS IN THE ANTI-TORQUE PEDALS. THE ACFT WAS TURNED INTO THE WIND BUT LANDED HARD IN A FIELD. THE PLT UPON EXITING THE ACFT FOUND THE ANTI-TORQUE ROTOR AND GEARBOX MISSING. THEY WERE FOUND 100 YARDS AWAY, BACK ALONG THE FLT PATH. ANALYSIS OF THE FAILED PARTS REVEALED AN AREA OF FATIGUE IN THE ATTACHMENT FITTINGS OF THE ANTI-TORQUE ROTOR AND GEARBOX.

Quoted verbatim from the NTSB record.