Robinson R22 BETA N184SH
13 July 2015 · Caldwell, Idaho, United States · No injuries
Summary
On 13 July 2015 at about 21:00 local time, a Robinson R22 BETA registered N184SH, operated by Alpine Aviation LLC, was involved in an accident near Caldwell, Idaho, United States. 2 people were on board and nobody was injured. 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 21:00
- Classification
- Accident
- Location
- Caldwell, Idaho, United States
- Nearest airport
- Caldwell Industrial (EUL)
- Coordinates
- 43.6422, -116.6361
- Aircraft
- Robinson R22 BETA
- Registration
- N184SH
- Category
- Helicopter
- Year built
- 2007
- Engines
- 1
- Operator
- Alpine Aviation LLC
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Instructional
- Phase of flight
- Not recorded
- Route
- Caldwell → Caldwell
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- GAA15CA181
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 2 | 0 | 0 | 0 | 2 |
Probable cause
Abnormal ground contact during a 180 degree autorotation, resulting in a severed tail rotor driveshaft by a main rotor blade. A factor contributing to the accident was the rotor blowback condition due to the aft tilting of the main rotor disk.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
The flight instructor reported that the student pilot entered a practice 180 degree autorotation with a power recovery maneuver. He reported that as the student pilot started to flare and raise the collective, the helicopter "fell dramatically and began to shake," at which time he took the flight controls. The flight instructor recovered the helicopter and landed. The helicopter landed with forward momentum and departed the runway to the right. He reported that "it did not seem as though the landing was very hard." A postflight inspection revealed that a main rotor blade had struck the tail boom, severing the tail rotor driveshaft. The flight instructor reported there were no pre-impact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation.
Quoted verbatim from the NTSB record.
Other Robinson R22 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 12 Jul 2015 | Robinson R22 BETA | Escalante, Utah, United States | - | Serious injuries | - |
| 15 Feb 2015 | Robinson R22 BETA | Asherton, Texas, United States | Southwest Texas Helicopters, Inc | Minor injuries | - |
| 22 Nov 2015 | Robinson R22 | Annaka City, Japan | - | Fatal | 2 |
| 3 Mar 2015 | Robinson R22 BETA | San Bernardino, California, United States | - | Minor injuries | - |
| 29 Jun 2015 | Robinson R22 BETA | Kailua-Kona, Hawaii, United States | Hawaii Pacific Aviation | Minor injuries | - |
| 1 Dec 2015 | Robinson R22 | Venice, Florida, United States | - | Serious injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 27 Aug 2015 | Aviat A-1C-200 | Irwin, Idaho, United States | Kevin Bloxham Premier Construction Supply Inc | No injuries | - |
| 6 Sep 2015 | Cessna T210L | Soda Springs, Idaho, United States | - | No injuries | - |
| 20 Apr 2015 | Cessna 180J | Boise, Idaho, United States | - | No injuries | - |
| 18 Jun 2015 | Piper PA 20 | Yellow Pine, Idaho, United States | - | Serious injuries | - |
| 21 Sep 2015 | Cessna T206H | Idaho Falls, Idaho, United States | Aero-Graphics Inc. | Minor injuries | - |
| 26 Jul 2015 | Cessna 180J | Dixie, Idaho, United States | Patrick, Scott | No injuries | - |