Enstrom 280C N652H
28 June 1983 · Kent, Washington, United States · Minor injuries
Summary
On 28 June 1983 at about 00:44 local time, a Enstrom 280C registered N652H was involved in an accident near Kent, Washington, United States. 2 people were on board and one had minor injuries. The aircraft was substantially damaged. No probable cause statement is available for this record.
The record
- Date
- at 00:44
- Classification
- Accident
- Location
- Kent, Washington, United States
- Coordinates
- 47.4000, -122.1904
- Aircraft
- Enstrom 280C
- Registration
- N652H
- Category
- Helicopter
- Engines
- 1
- Operator
- Not recorded
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Aerial Observation
- Phase of flight
- Not recorded
- Route
- Seattle → Unknown
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- SEA83FA135
People
1 person had minor injuries.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 2 | 0 | 0 | 1 | 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
DURING A TRAFFIC REPORTING FLT FOR A RADIO STATION, THE PLT NOTED THE ONSET OF A SEVERE VIBRATION WHICH HE FELT THROUGH THE ANTITORQUE PEDALS. HE STATED THAT WITHIN SECONDS, THE HELICOPTER LOST DIRECTIONAL CONTROL & BEGAN A RAPID, UNCONTROLLED SPIN TO THE RIGHT. REPORTEDLY, THE HELICOPTER TUMBLED OUT OF CONTROL FOR A TIME. HOWEVER, THE PLT WAS ABLE TO REGAIN PARTIAL CONTROL AS IT ROLLED THRU A RELATIVELY UPRIGHT ATTITUDE. BEFORE CRASHING, THE RATE OF DESCENT WAS SLOWED WITH FULL COLLECTIVE & A ROTATING IMPACT OCCURRED IN A HORIZONTAL ATTITUDE. AN INVESTIGATION REVEALED THE TAIL ROTOR DRIVE SHAFT SPLINE COUPLING, PN 28-13609, HAD BECOME WORN. THE TEETH OF THE COUPLING WERE WORN AWAY & THERE WAS IRON OXIDE & CARBONIZED LUBRICANT WITHIN THE COUPLING. THE SPLINED MALE END OF THE COUPLING WOULD ROTATE WITHIN THE SPLINED FEMALE HOUSING. IT HAD ACCUMULATED 149.1 HRS SINCE LUBRICATED. THE LUBRICATION CHART & CHECK SHEET (PAGES MM-3-5 & MM-3-6 OF THE MAINTENANCE MANUAL) SHOW THAT THE COUPLING SHOULD BE LUBED AT 100 HR INTERVALS
Quoted verbatim from the NTSB record.
Other Enstrom 280 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 24 May 1983 | Enstrom 280C | Goshen, California, United States | Norman L. Clark | Minor injuries | - |
| 17 Jun 1983 | Enstrom 280C | Frisco, Texas, United States | Four Winds Aviation | No injuries | - |
| 21 Sep 1983 | Enstrom 280C | Pontiac, Michigan, United States | - | Serious injuries | - |
| 25 Aug 1983 | Enstrom 280C | N. Hailey, Idaho, United States | - | No injuries | - |
| 28 May 1983 | Enstrom 280C | Opelousas, Louisiana, United States | Curtis Parkis Dotson | Fatal | 1 |
| 2 Jun 1983 | Enstrom 280C | New Market, New Hampshire, United States | - | Minor injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 17 Dec 1983 | Cessna 150F | Prosser, Washington, United States | - | No injuries | - |
| 4 Feb 1983 | Maule M-5-220C | Near Asotin, Washington, United States | Thomas L. Jordan | Serious injuries | - |
| 5 Feb 1983 | Piper PA-34-200T | Seattle, Washington, United States | Airpac Airlines | No injuries | - |
| 3 Mar 1983 | Cessna 140 | Moses Lake, Washington, United States | - | Fatal | 1 |
| 6 Mar 1983 | Glasair SH-2 | 5 Nm E. of Kent, Washington, United States | - | Fatal | 1 |
| 18 Mar 1983 | Fairchild Hiller FH-1100 | Longview, Washington, United States | - | Serious injuries | - |