Plane Crash List

Hiller UH21E N169HA

12 August 1986 · Salinas, California, United States · No injuries

Summary

On 12 August 1986 at about 15:45 local time, a Hiller UH21E registered N169HA was involved in an accident near Salinas, California, 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.

The record

Date
at 15:45
Classification
Accident
Location
Salinas, California, United States
Nearest airport
Salinas (SNS)
Coordinates
36.6696, -121.6091
Aircraft
Hiller UH21E
Registration
N169HA
Category
Helicopter
Engines
1
Operator
Not recorded
Operating rule
Part 137: Agricultural
Purpose of flight
Aerial Application
Phase of flight
Not recorded
Route
Salinas → Unknown
Aircraft damage
Substantial
Weather
VMC
Light
Day
NTSB number
LAX86FVM06

People

Nobody was injured.

On board Died Serious Minor Uninjured
1 0 0 0 1

Probable cause

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 EXPERIENCED A 'RATCHETING' TO THE RIGHT AND A DECREASE IN ROTOR RPM DURING CRUISE FLT AT 75-100 FT AGL. THE PLT MADE AN AUTOROTATION BUT COULD NOT CUSHION THE LANDING DUE TO THE LOW ALT AND LACK OF ROTOR RPM. THE HELICOPTER IMPACTED HARD AND CARTWHEELED. POST ACCIDENT EXAMINATION OF THE HELICOPTER REVEALED THE UPPER HOUSING OIL ORIFICE WAS COMPLETELY BLOCKED WITH A FOREIGN MATERIAL WHICH RESULTED IN OIL STARVATION TO THE SECONDARY PLANET SYSTEM. THE FOREIGN MATERIAL WAS ANALYZED AND FOUND TO CONTAIN 'SIGNIFICANT QUANTITIES OF SILICON'.

Quoted verbatim from the NTSB record.

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All 170,864 records in United States