Robinson R-22 MARINER N113CF
4 June 1996 · Mekoryuk, Alaska, United States · Fatal
Summary
On 4 June 1996 at about 00:00 local time, a Robinson R-22 MARINER registered N113CF was involved in an accident near Mekoryuk, Alaska, United States. One person was on board and one died. The aircraft was destroyed. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 00:00
- Classification
- Accident
- Location
- Mekoryuk, Alaska, United States
- Coordinates
- 60.3709, -166.2706
- Aircraft
- Robinson R-22 MARINER
- Registration
- N113CF
- Category
- Helicopter
- Engines
- 1
- Operator
- Not recorded
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Business
- Phase of flight
- Not recorded
- Aircraft damage
- Destroyed
- Weather
- VMC
- Light
- Day
- NTSB number
- ANC96FA081
People
1 person died.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 1 | 1 | 0 | 0 | 0 |
Probable cause
A loss of engine power due to fuel contamination found in the fuel supply and helicopter fuel system. Factors in the accident were the pilot's inadequate filtration (servicing of the helicopter) of the fuel supply, and the pilot's inadequate performance of emergency procedures.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
The pilot had departed to pick up a company worker about 35 miles south of the departure point on a remote island. The wreckage was located the following day, partially submerged and floating in a small lake. The helicopter received damage consistent with a significant vertical descent onto the lake. The rotor system was undamaged. The wreckage examination revealed particulate contamination in the fuel system. The helicopter was routinely fueled from barrels and hand pumped through a water/separator type filter. Examination of the water separator revealed water and sediment in the filter bowl. A sample of fuel from the fuel barrel contained particulate contamination. Following the accident, the engine was removed and placed in a test stand where it was started. The engine produced full power until the left magneto failed internally due to corrosion from water immersion.
Quoted verbatim from the NTSB record.
Other Robinson R-22 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 22 Mar 1996 | Robinson R-22-BETA | Bunnell, Florida, United States | International Helicopter Acad. | No injuries | - |
| 22 Apr 1996 | Robinson R-22 | Kissimmee, Florida, United States | - | No injuries | - |
| 9 May 1995 | Robinson R-22 BETA | Toano, Virginia, United States | - | Fatal | 1 |
| 10 Sep 1995 | Robinson R-22 BETA | Akron, Ohio, United States | - | Fatal | 1 |
| 29 Aug 1995 | Robinson R-22 | El Monte, California, United States | California Helitec | No injuries | - |
| 12 May 1997 | Robinson R-22 | Santa Margarita, California, United States | - | Minor injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 21 Apr 1996 | Piper PA-28 | Wasilla, Alaska, United States | - | No injuries | - |
| 13 Apr 1996 | Piper PA-11 | Paxson, Alaska, United States | Mark W. Barkdull | No injuries | - |
| 24 Apr 1996 | Piper PA-14 | Anchorage, Alaska, United States | David Calkins | No injuries | - |
| 27 Apr 1996 | Piper PA-18 | Kotzebue, Alaska, United States | - | No injuries | - |
| 27 Apr 1996 | Cessna 180H | Palmer, Alaska, United States | Richard Greeno | No injuries | - |
| 28 Apr 1996 | Piper PA-18 | Kasilof, Alaska, United States | Paul G. Isaak | No injuries | - |