Hiller UH12-E, SALOY CONVER N9753C
15 August 1992 · Arvin, California, United States · Minor injuries
Summary
On 15 August 1992 at about 13:15 local time, a Hiller UH12-E, SALOY CONVER registered N9753C, operated by San Joaquin Helicopters, Inc., was involved in an accident near Arvin, California, United States. One person was on board and one had minor injuries. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 13:15
- Classification
- Accident
- Location
- Arvin, California, United States
- Coordinates
- 35.2504, -118.9092
- Aircraft
- Hiller UH12-E, SALOY CONVER
- Registration
- N9753C
- Category
- Helicopter
- Engines
- 1
- Operator
- San Joaquin Helicopters, Inc.
- Operating rule
- Part 137: Agricultural
- Purpose of flight
- Aerial Application
- Phase of flight
- Not recorded
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- LAX92LA349
People
1 person had minor injuries.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 1 | 0 | 0 | 1 | 0 |
Probable cause
THE FAILURE OF THE TENSION TORSION BAR PIN DUE TO FATIGUE. CONTRIBUTING TO THIS ACCIDENT WAS THAT IT WAS NOT POSSIBLE FOR THE PILOT TO FLARE THE HELICOPTER ON LANDING.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
THE PILOT WAS CONDUCTING AN AERIAL APPLICATION FLIGHT. WHILE EXECUTING THE PROCEDURE TURNAROUND, THE MAIN ROTOR BLADE TENSION TORSION PIN FAILED DUE TO FATIGUE. THIS PART HAS A LIFE LIMIT OF 643 HOURS. THE FAILED PIN ACCRUED 641.5 HOURS. THE PILOT WAS ABLE TO EXECUTE AN AUTOROTATION, BUT WAS UNABLE TO FLARE WHICH RESULTED IN A HARD LANDING.
Quoted verbatim from the NTSB record.
Other Hiller UH12 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 3 Apr 1996 | Hiller UH12-E | Huger, South Carolina, United States | Haddock Flying Service, Inc | Serious injuries | - |
| 1 Jul 1996 | Hiller UH12 | Franklin, Louisiana, United States | - | No injuries | - |
| 16 Jul 1999 | Hiller UH12-C | Venice, Florida, United States | Michael B. Pritchard | No injuries | - |
| 7 Apr 1983 | Hiller UH12-E | Kettleman City, California, United States | Baldrick Crop Dusting | No injuries | - |
| 2 Oct 1983 | Hiller UH12-E | Tenino, Washington, United States | - | No injuries | - |
| 9 May 2010 | Hiller UH12 | Sarasota, Florida, United States | Helicopter Service by Randy, LLC | Minor injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 22 Feb 1992 | Piper PA-28R-201T | Ludlow, California, United States | Higgins, Melvin W & Jean | Minor injuries | - |
| 22 Feb 1992 | Beechcraft C-23 | Fullerton, California, United States | Eldon R. Howe | No injuries | - |
| 23 Feb 1992 | Cessna 150 | San Jose, California, United States | Veda Corporation | Minor injuries | - |
| 23 Feb 1992 | Cessna 182N | San Ardo, California, United States | Soil Service, Inc. | No injuries | - |
| 25 Feb 1992 | Grumman G-164B | Dixon, California, United States | Sunrise Duster, Inc. | No injuries | - |
| 25 Feb 1992 | Bellanca 7ECA | Apple Valley, California, United States | Chester Waite | Serious injuries | - |