De Havilland DHC-1 N320WM
19 August 1995 · Hammond, Wisconsin, United States · Serious injuries
Summary
On 19 August 1995 at about 22:53 local time, a De Havilland DHC-1 registered N320WM was involved in an accident near Hammond, Wisconsin, United States. 2 people were on board and 2 were seriously injured. The aircraft was destroyed. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 22:53
- Classification
- Accident
- Location
- Hammond, Wisconsin, United States
- Coordinates
- 44.9704, -92.4296
- Aircraft
- De Havilland DHC-1
- Registration
- N320WM
- Category
- Airplane
- Engines
- 1
- Operator
- Not recorded
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Personal
- Phase of flight
- Not recorded
- Route
- Baldwin → Unknown
- Aircraft damage
- Destroyed
- Weather
- VMC
- Light
- Day
- NTSB number
- CHI95LA288
People
2 people were seriously injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 2 | 0 | 2 | 0 | 0 |
Probable cause
an overload failure of the right horizontal support tube assembly which the pilot/owner had modified to be adjustable. A factor in the accident was the corn.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
THE PILOT REPORTED HE HAD BEEN DOING AEROBATIC MANEUVERS FOR ABOUT 10 MINUTES. HE STARTED DECENDING FROM 4,000 FEET, AND AFTER LEVELING OFF AT ABOUT 1,000 FEET AGL THE AIRCRAFT STARTED TO VIBRATE OR SHAKE VIOLENTLY. HE REPORTED PULLING THE POWER BACK TO IDLE THINKING HE MAY HAVE LOST A PROPELLER BLADE, AND TO SLOW THE AIRCRAFT DOWN. HE LANDED IN A CORN FIELD AND THE AIRCRAFT NOSED OVER. INVESTIGATION REVEALED THAT THE PROPELLER HAD SEPARATED FROM THE ENGINE UPON GROUND CONTACT, AND THAT ALL THREE BLADES WERE STILL ATTACHED TO THE PROP HUB. THE PILOT STATED THAT HE THOUGHT THE AIRCRAFT MAY HAVE HAD A STRUCTURAL FAILURE OF SOME SORT. EXAMINATION OF THE LEFT AND RIGHT STABILIZER SUPPORT TUBE ASSEMBLIES REVEALED NO INDICATIONS OF PREEXISTING CRACKING. THE DEFORMATION PATTERNS ON THE RIGHT TUBE INDICATED OVERSTRESSING LOADS. THE PILOT/OWNER HAD THE TUBES MODIFIED TO MAKE THEM ADJUSTABLE.
Quoted verbatim from the NTSB record.
Other De Havilland DHC-1 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 13 Sep 1997 | De Havilland DHC-1 | Winlock, Washington, United States | - | Serious injuries | - |
| 12 Nov 1984 | De Havilland DHC-1-22 | Abilene, Texas, United States | Dimberly B. Pardue | Fatal | 2 |
| 20 Nov 1983 | De Havilland DHC-1 | Orange, Texas, United States | - | No injuries | - |
| 30 Apr 1981 | De Havilland DHC-1 | Rawlins, Wyoming, United States | - | No injuries | - |
| 6 Aug 1981 | De Havilland DHC-1 | Mequon, Wisconsin, United States | - | No injuries | - |
| 24 Jun 2010 | De Havilland DHC-1 | Port Orchard, Washington, United States | John Geyman | Minor injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 9 Mar 1995 | Cessna 152 | Waukesha, Wisconsin, United States | - | No injuries | - |
| 9 Oct 1995 | Piper PA-28-236 | Thorp, Wisconsin, United States | - | No injuries | - |
| 11 Oct 1995 | Cessna 172F | Danbury, Wisconsin, United States | John Watts | No injuries | - |
| 11 Oct 1995 | Roisum Team MINI-MAX | Neenah, Wisconsin, United States | - | Minor injuries | - |
| 23 Apr 1995 | Piper J-3 | Elk Creek, Wisconsin, United States | - | Minor injuries | - |
| 25 Oct 1995 | Cessna 170B | Oconomowoc, Wisconsin, United States | - | Minor injuries | - |