Enstrom F-28F N5698E
17 August 1982 · Near Sutton, Alaska, United States · Minor injuries
Summary
On 17 August 1982 at about 18:05 local time, a Enstrom F-28F registered N5698E, operated by Kean & Associates, was involved in an accident near Near Sutton, Alaska, United States. 3 people were on board and 3 had minor injuries. The aircraft was substantially damaged. No probable cause statement is available for this record.
The record
- Date
- at 18:05
- Classification
- Accident
- Location
- Near Sutton, Alaska, United States
- Coordinates
- 61.7407, -148.2201
- Aircraft
- Enstrom F-28F
- Registration
- N5698E
- Category
- Helicopter
- Engines
- 1
- Operator
- Kean & Associates
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Business
- Phase of flight
- Not recorded
- Route
- Near Sutton → Near Sutton
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- ANC82DA075
People
3 people had minor injuries.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 3 | 0 | 0 | 3 | 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 PILOT HAD APPROACHED AND LANDED ON A BLUFF TO DISCHARGE HIS TWO PASSENGERS. HOWEVER, BEFORE DISCHARGING THE PASSENGERS, HE DECIDED TO TAKEOFF AND FIND A BETTER LANDING AREA. WHEN THE HELICOPTER WAS ABOUT 10 TO 20 FT FROM THE TAKEOFF POINT, BUT APPROXIMATELY 200 FT AGL, THERE WAS A DECREASE IN RPM. INITIALLY, THE PILOT THOUGHT HE WAS SETTLING WITH POWER. HE LOWERED THE NOSE AND COLLECTIVE, BUT WAS UNABLE TO REGAIN THE RPM, BUT HE FELT THE HELICOPTER YAW TO THE LEFT. HE FELT MAST-BUMPING AND REALIZED HE MUST BE CROSS-CONTROLLING WITH TOO MUCH RIGHT PEDAL AND LEFT CYCLIC. HE THEN ENTERED AN AUTOROTATION. THE HELICOPTER COLLIDED WITH TREES ON THE SIDE OF THE BLUFF AND ROLLED TO THE BOTTOM OF THE HILL. AN EXAMINATION REVEALED THAT THE NO-2 CYLINDER COMPRESSION WAS LOW. THE NO-2 INTAKE VALVE HAD BECOME TULIPED AND WAS LEAKING. THERE WAS EVIDENCE THAT IT HAD BEEN POUNDING. ALSO, THERE WAS INDICATIONS OF HIGH ENGINE RPM AND TEMPERATURE. THE HELICOPTER HAD BEEN FLOWN 38 HRS SINCE THE LAST INSPECTION.
Quoted verbatim from the NTSB record.
Other Enstrom F-28F accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 21 Jul 1983 | Enstrom F-28F | Springfield, Ohio, United States | - | No injuries | - |
| 17 Apr 1983 | Enstrom F-28F | Belfield, North Dakota, United States | - | No injuries | - |
| 12 Aug 1985 | Enstrom F-28F | Groton, Connecticut, United States | - | Minor injuries | - |
| 22 Nov 1985 | Enstrom F-28F | Miami, Florida, United States | Alfred M. Gore | No injuries | - |
| 12 May 1985 | Enstrom F-28F | Carrizozo, New Mexico, United States | - | Fatal | 1 |
| 22 Oct 1986 | Enstrom F-28F | Manhattan, New York, United States | Spectrum Helicopters, Inc. | Fatal | 1 |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 7 Aug 1982 | Piper PA-12 | Near Anchorage, Alaska, United States | Seven Star Flying Club Incorpo | Minor injuries | - |
| 26 Jun 1982 | Cessna 170B | Near Anchorage, Alaska, United States | Robert Rouille Gaines | No injuries | - |
| 4 Aug 1982 | Cessna 150H | Near Anchorage, Alaska, United States | John P. Ellison JR. | Serious injuries | - |
| 10 Sep 1982 | Cessna 170 | Near Anchorage, Alaska, United States | Vernon L. Roelfs | No injuries | - |
| 14 Aug 1982 | Cessna 207 | Near Anvik, Alaska, United States | Byron R. Walton | No injuries | - |
| 16 May 1982 | De Havilland DHC-6-200 | Hooper Bay, Alaska, United States | Gifford Aviation | Serious injuries | - |