Bell 47G-2 N11VH
12 June 1986 · Zillah, Washington, United States · No injuries
Summary
On 12 June 1986 at about 11:45 local time, a Bell 47G-2 registered N11VH was involved in an accident near Zillah, Washington, United States. One person was on board and nobody was injured. The aircraft was destroyed. No probable cause statement is available for this record.
The record
- Date
- at 11:45
- Classification
- Accident
- Location
- Zillah, Washington, United States
- Coordinates
- 47.2006, -120.8993
- Aircraft
- Bell 47G-2
- Registration
- N11VH
- Category
- Helicopter
- Engines
- 1
- Operator
- Not recorded
- Operating rule
- Part 137: Agricultural
- Purpose of flight
- Aerial Application
- Phase of flight
- Not recorded
- Route
- Buena → Unknown
- Aircraft damage
- Destroyed
- Weather
- VMC
- Light
- Dawn
- NTSB number
- SEA86LA143
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
EN ROUTE TO THE LOCAL SPRAY AREA A TOTAL LOSS OF POWER OCCURRED ALONG WITH A LOSS OF OIL PRESSURE. THE ACFT WAS APRX 200 FT AGL OVER A PEAR ORCHARD. THE PLT WAS ATTEMPTING TO AUTOROTATE ONTO A NEARBY ROAD BUT THE LEFT SKID CAUGHT THE ROOF TOP OF A METAL SHED. THE HELICOPTER CRASHED THROUGH THE ROOF OF THE SHED AND ROLLED OVER ONTO ITS SIDE. INVESTIGATION REVEALED THAT THE NUMBER THREE CYLINDER ROD BOLT HAD FAILED. METALLURGICAL EXAM REVEALED THAT THE NUMBER 3 CYLINDER CONNECTING ROD CAP HAD FAILED AS A RESULT OF OVERSTRESS FORCES DUE TO EXCESSIVE HEATING OF THE ROD AND CAP. FAILURE OF THE NUMBER 3 CYLINDER CONNECTING ROD BOLT WAS DUE TO FATIGUE CRACKING. THE MOST LIKELY CAUSE OF THE OVERHEATING WAS DUE TO A DETERIORATED BEARING.
Quoted verbatim from the NTSB record.
Other Bell 47 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 31 Jul 1986 | Bell 47G-3B1 | Lihue, Hawaii, United States | - | Serious injuries | - |
| 10 Nov 1986 | Bell 47G-3B-1 | Goshen, Utah, United States | - | No injuries | - |
| 18 Apr 1986 | Bell 47G-3B1 | Lapwai, Idaho, United States | - | No injuries | - |
| 8 Jul 1986 | Bell 47G-5 | Porterville, California, United States | - | Serious injuries | - |
| 6 Mar 1986 | Bell 47G-2 | Stockton, California, United States | - | No injuries | - |
| 28 Nov 1986 | Bell 47-G2A | Jamesburg, New Jersey, United States | - | Serious injuries | - |
All 1,633 records for this type
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 27 Mar 1986 | Bob White AJ1 | Vancouver, Washington, United States | KEN D. Johnson | No injuries | - |
| 29 Mar 1986 | Cessna 188-A | Warden, Washington, United States | Terry Kilmer Corp Dusing, Inc. | No injuries | - |
| 31 Mar 1986 | Beechcraft E-35 | Couger, Washington, United States | - | Minor injuries | - |
| 30 Mar 1986 | Hiller 12E | Walla Walla, Washington, United States | - | No injuries | - |
| 10 Apr 1986 | Morley AVID FLYER | Spokane, Washington, United States | Daniel Morley | Serious injuries | - |
| 24 Apr 1986 | Piper PA-36 | Mattawa, Washington, United States | - | Minor injuries | - |