Enstrom F-28F N5700C
27 February 1999 · San Jose, California, United States · No injuries
Summary
On 27 February 1999 at about 20:56 local time, a Enstrom F-28F registered N5700C was involved in an accident near San Jose, California, United States. 2 people were 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 20:56
- Classification
- Accident
- Location
- San Jose, California, United States
- Nearest airport
- Reid-Hillview of Santa Cl (RHV)
- Coordinates
- 37.3309, -121.7697
- Aircraft
- Enstrom F-28F
- Registration
- N5700C
- Category
- Helicopter
- Engines
- 1
- Operator
- Not recorded
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Unknown
- Phase of flight
- Not recorded
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- LAX99LA112
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 2 | 0 | 0 | 0 | 2 |
Probable cause
The loss of aircraft control due to the pilot's sudden application of collective combined with excessive cyclic inputs.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
The pilot and a mechanic were performing a postmaintenance test flight following tracking of the main rotor blades. One test flight had already been accomplished with no discrepancies. The pilot had not flown the helicopter during the preceding 90 days. As the pilot pulled the collective, the aircraft suddenly came to a 4-foot hover with the fuselage swinging side to side and fore and aft below the main rotor. The pilot attempted to recover; however, the aircraft pitched forward, the main rotor blades struck the ground, and the aircraft rolled onto its right side. The pilot said he thought he might have mispositioned the cyclic before raising the collective as he was attempting to comply with the mechanic's request to 'pull-off before vibration became a problem.' He said the controls 'felt' differently than he had expected. A detailed control system inspection found no evidence of preexisting discrepancies.
Quoted verbatim from the NTSB record.
Other Enstrom F-28F accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 12 Apr 1998 | Enstrom F-28F | Haines, Alaska, United States | - | Minor injuries | - |
| 4 Aug 1998 | Enstrom F-28F | Bryce Canyon, Utah, United States | - | No injuries | - |
| 10 Oct 2000 | Enstrom F-28F | Twin Falls, Idaho, United States | - | No injuries | - |
| 12 Aug 1998 | Enstrom F-28F | Marco Island, Florida, United States | - | No injuries | - |
| 25 Jul 1998 | Enstrom F-28F | Skwentna, Alaska, United States | - | No injuries | - |
| 6 Dec 1997 | Enstrom F-28F | John Day, Oregon, United States | - | No injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 18 Dec 1999 | Rhea KR-2 | Moreno Valley, California, United States | - | Minor injuries | - |
| 18 Dec 1999 | Cessna 172A | Shoshone, California, United States | Charles R. Christman | No injuries | - |
| 9 Sep 1999 | Piper PA-22-150 | Strathmore, California, United States | - | Fatal | 1 |
| 12 Sep 1999 | Cessna 172N | San Jose, California, United States | Concord Flight Intl, Inc | No injuries | - |
| 30 Apr 1999 | Schweizer 269C-1 | Concord, California, United States | - | No injuries | - |
| 14 Sep 1999 | Robinson R-22 | Azusa, California, United States | - | No injuries | - |