Hiller UH-12-E N133HA
4 August 1990 · Garrison, North Dakota, United States · No injuries
Summary
On 4 August 1990 at about 15:45 local time, a Hiller UH-12-E registered N133HA, operated by Morten, Shawn B., was involved in an accident near Garrison, North Dakota, United States. One person was 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 15:45
- Classification
- Accident
- Location
- Garrison, North Dakota, United States
- Coordinates
- 47.6496, -101.4202
- Aircraft
- Hiller UH-12-E
- Registration
- N133HA
- Category
- Helicopter
- Engines
- 1
- Operator
- Morten, Shawn B.
- Operating rule
- Part 137: Agricultural
- Purpose of flight
- Aerial Application
- Phase of flight
- Not recorded
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- CHI90DTG02
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 1 | 0 | 0 | 0 | 1 |
Probable cause
THE FAILURE OF THE HELICOPTER TAIL ROTOR CONTROL CABLE. A FACTOR RELATED TO THE ACCIDENT WAS THE CHAFING OF THE TAIL ROTOR CONTROL CABLE.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
DURING THE TAKEOFF TRANSITION TO FORWARD FLIGHT THE HELICOPTER PILOT FELT THE LEFT ANTITORQUE PEDAL GO TO THE FLOOR, AND THE HELICOPTER BEGAN TO ROTATE UNCONTROLLED. THE PILOT MANEUVERED THE HELICOPTER TO A CLEAR AREA AND ATTEMPTED TO LAND. UNCONTROLLED CONTACT WAS MADE WITH THE TERRAIN. THE INVESTIGATION REVEALED THAT THE LEFT TAIL ROTOR CONTROL CABLE HAD FAILED DUE TO OVERLOAD IN AN AREA WHICH HAD BEEN SUBJECT TO MECHANICAL ABRASION.
Quoted verbatim from the NTSB record.
Other Hiller UH-12 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 9 Aug 1990 | Hiller UH-12-E | Los Banos, California, United States | Patterson Flying Service | Minor injuries | - |
| 17 Feb 1988 | Hiller UH-12-D | Bon-Wier, Texas, United States | Thomas E. Hanks | Serious injuries | - |
| 16 Apr 1994 | Hiller UH-12 | Alvin, Texas, United States | Central Helicopter Services | Minor injuries | - |
| 27 May 1996 | Hiller UH-12 | Walla Walla, Washington, United States | - | No injuries | - |
| 26 Jun 1984 | Hiller UH 12 D | Deerfield, Wisconsin, United States | - | Minor injuries | - |
| 8 Jul 1983 | Hiller UH 12-E | Lancaster, California, United States | Aerohead Helicopters | No injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 21 Apr 1990 | Avions Mudry CAP10B | Grand Forks, North Dakota, United States | University of North Dakota | Minor injuries | - |
| 5 Aug 1990 | Cessna 150L | Donnybrook, North Dakota, United States | Pietsch Flying Service | Fatal | 2 |
| 8 Jun 1990 | Piper J3C-65 | Wahpeton, North Dakota, United States | - | No injuries | - |
| 22 Jun 1990 | Piper PA-25-260 | Hazelton, North Dakota, United States | Midwest Air Center | Serious injuries | - |
| 28 Jun 1990 | Grumman G-164A | Edgeley, North Dakota, United States | Lonnie D. Hartwig | Minor injuries | - |
| 11 Jul 1990 | Cessna 188 | Michigan, North Dakota, United States | Oewick. DON | No injuries | - |