Helio H-391-B N173K
8 October 1993 · Beaver Creek, Alaska, United States · No injuries
Summary
On 8 October 1993 at about 01:35 local time, a Helio H-391-B registered N173K, operated by Porter, Steven H., was involved in an accident near Beaver Creek, Alaska, United States. One person was on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 01:35
- Classification
- Accident
- Location
- Beaver Creek, Alaska, United States
- Coordinates
- Not recorded
- Aircraft
- Helio H-391-B
- Registration
- N173K
- Category
- Airplane
- Engines
- 1
- Operator
- Porter, Steven H.
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Positioning
- Phase of flight
- Not recorded
- Route
- Fort Yukon → Fairbanks
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Not Reported
- NTSB number
- ANC94LA007
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 1 | 0 | 0 | 0 | 1 |
Probable cause
THE PILOT'S FAILURE TO MAINTAIN THE REQUIRED AIRSPEED DURING THE EMERGENCY DESCENT AS PUBLISHED IN THE PILOT'S MANUAL. A FACTOR IS THE LOSS OF ENGINE POWER FOR UNDETERMINED REASONS.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
THE PILOT STATED THAT THE AIRPLANE LOST POWER. HE ALSO STATED THAT HE HAD 10 GALLONS OF FUEL IN THE RIGHT TANK AND 15 GALLONS OF FUEL IN THE LEFT AND THAT THE AIRPLANE DID NOT RUN OUT OF FUEL. DURING HIS ENGINE OUT DESCENT, HE ALLOWED THE AIRSPEED TO DISSIPATE BELOW 65 KNOTS. THE PILOT'S MANUAL STATES THAT BELOW 65 KNOTS, THE SLATS AUTOMATICALLY DEPLOY AND THE GLIDE PATH STEEPENS CONSIDERABLY. THE PILOT MISSED THE INTENDED FORCED LANDING AREA.
Quoted verbatim from the NTSB record.
Other Helio H-391 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 15 May 1967 | Helio H-391 | Nogales, Arizona, United States | - | No injuries | - |
| 17 Apr 1966 | Helio H-391 | Orangeburg Ny, New York, United States | - | No injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 21 Jul 1993 | Cessna A185F | Denali Nat'l Pk, Alaska, United States | James Okonek | Serious injuries | - |
| 4 Aug 1993 | Piper PA-32R-300 | Atigun Pass, Alaska, United States | Yutana Airlines | Fatal | 1 |
| 19 Aug 1993 | De Havilland DHC-3 | Nikabuna Lake, Alaska, United States | Ketchum Air Service Inc. | Minor injuries | - |
| 31 Aug 1993 | De Havilland DHC-2 | Iliamna, Alaska, United States | Rainbow King, Inc | Fatal | 3 |
| 2 Sep 1993 | Piper PA-18A-150 | Sanona Creek, Alaska, United States | Garfield, Wade E. | Fatal | 2 |
| 8 Sep 1993 | Interstate S-1B2 ARCTIC TERN | Talkeetna River, Alaska, United States | Franklin, Gary L. | Serious injuries | - |