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.
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 29 Jun 1986 | Cessna 150 | Hesperia, California, United States | - | No injuries | - |
| 1 Nov 1986 | Luscombe 8A | Half Moon Bay, California, United States | - | No injuries | - |
| 28 Jun 1986 | Schleicher ASW-19 | Warner Springs, California, United States | Mark A. Miller | No injuries | - |
| 2 Nov 1986 | Learjet 24 | Lake Tahoe, California, United States | - | No injuries | - |
| 30 Jun 1986 | Piper PA-18-150 | Ukiah, California, United States | - | No injuries | - |
| 6 Nov 1986 | Beechcraft K35 | San Diego, California, United States | Dean Holt | Minor injuries | - |