Kaman HH-43F N4524
22 February 1982 · Sutherlin, Oregon, United States · Minor injuries
Summary
On 22 February 1982 at about 18:15 local time, a Kaman HH-43F registered N4524, operated by Donald Lederhos, was involved in an accident near Sutherlin, Oregon, United States. One person was on board and one had minor injuries. The aircraft was destroyed. No probable cause statement is available for this record.
The record
- Date
- at 18:15
- Classification
- Accident
- Location
- Sutherlin, Oregon, United States
- Coordinates
- 43.4091, -123.1091
- Aircraft
- Kaman HH-43F
- Registration
- N4524
- Category
- Helicopter
- Engines
- 1
- Operator
- Donald Lederhos
- Operating rule
- Part 133: Rotorcraft Ext. Load
- Purpose of flight
- Unknown
- Phase of flight
- Not recorded
- Route
- Sutherlin → Sutherlin
- Aircraft damage
- Destroyed
- Weather
- VMC
- Light
- Day
- NTSB number
- SEA82FYK08
People
1 person had minor injuries.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 1 | 0 | 0 | 1 | 0 |
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 HELICOPTER WAS BEING USED ON A LOGGING OPERATION. AFTER RELEASING A LOAD FROM A HOVER OUT OF GROUND EFFECT, THE PILOT BEGAN TO TURN AND ACCELERATE. ABOUT TWO-THIRDS TO THREE-FOURTHS OF THE WAY THROUGH A 180 DEGREE TURN, THE AIRCRAFT BEGAN A SUDDEN, VERY VIOLENT, RAPID VIBRATION. THE PILOT RECALLED BEING THRASHED ABOUT WHILE THE HELICOPTER ROLLED TO THE RIGHT AND CRASHED. AN INVESTIGATION REVEALED THAT ONE OF THE RIGHT ROTOR BLADES HAD FAILED. A 9.5 FT SECTION OF THE OUTBOARD LEADING EDGE ALONG WITH APPROXIMATELY A 3.5 FT PIECE OF THE BLADE TIP HAD SEPARATED. THEY WERE FOUND ABOUT 1/4 MILE FROM THE MAIN WRECKAGE. AN EXAMINATION OF THE BLADE REVEALED THAT THE STAINLESS STEEL CONDUCTOR STRIP, PN K711583-11, HAD BEEN PULLED LOOSE FROM THE BOLT WHICH HELD IT ON THE TOP SIDE OF THE BLADE. THE BOTTOM BOLT HOLE WAS ELONGATED AND THE BOTTOM OF THE STRIP WAS STRETCHED. THE PAINT SHOWED WHIP MARKS RADIATING OUT FROM THE INBOARD ATTACH POINT. A NEARBY TREE HAD NO EVIDENCE OF ROTOR CONTACT.
Quoted verbatim from the NTSB record.
Other Kaman HH-43F accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 24 Aug 1979 | Kaman HH-43F | Hamilton, Montana, United States | - | Minor injuries | - |
| 9 Apr 1992 | Kaman HH-43F | Manteo, North Carolina, United States | Precision Lift, Inc | No injuries | - |
| 24 Jul 1992 | Kaman HH-43F | Headquarters, Idaho, United States | - | No injuries | - |
| 12 May 1993 | Kaman HH-43F | Anatone, Washington, United States | Woody Contracting, Inc | Fatal | 1 |
| 30 Oct 1994 | Kaman HH-43F | Willits, California, United States | Skyhook, Inc. | Serious injuries | - |
| 25 Sep 1999 | Kaman HH-43F | Phoenix, Arizona, United States | - | Fatal | 2 |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 17 Jul 1982 | Cessna TU206G | Hood River, Oregon, United States | Russell O. Wagner | No injuries | - |
| 1 Dec 1982 | Stinson 108-2 | Hood River, Oregon, United States | Tony R. Dressel | No injuries | - |
| 19 Jun 1982 | Cessna 170A | Oregon City, Oregon, United States | Larry J Voss | No injuries | - |
| 18 Jul 1982 | Beechcraft C45G | Sheridan, Oregon, United States | Sheridan Flying Service | No injuries | - |
| 4 May 1982 | Cessna 150H | Oregon City, Oregon, United States | TED Mayfield Pacific Parachute | Fatal | 2 |
| 4 Sep 1982 | Cessna R172K | Brownsmead, Oregon, United States | Richard A. Person | Minor injuries | - |