- Date
- February 14, 2000
- Place
- Pacific Ocean (Pacific Ocean)
- Injuries
- 2 uninjured
- Damage
- Destroyed
- Phase of flight
- Enroute
- Aircraft
- N717STHughes 369HS
- Weather
- Visual (VMC) · Day
- Status
- Completed · report July 17, 2001
- Report
- Approved by Office Director
- FAA report
- 20000214011339A
- Case key
- 48702
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
An unknown mechanical malfunction that resulted in a precautionary landing at sea and the subsequent sinking of the helicopter by an ocean swell.
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
Analysis
On the third flight of the day, at 100 feet after takeoff from the fishing vessel, the pilot reported that he felt a grinding sensation from the cyclic control followed by a loud bang. After making the precautionary landing, the helicopter was struck by an ocean swell, rolled over, and subsequently sank. The pilot and observer were rescued uninjured from the water by the fishing vessel. It was noted that the foreign pilot did not possess a U.S. flight certificate.
Factual narrative
On February 14, 2000, at 1700 local meridian time, a Hughes 369HS, N717ST, made a precautionary landing due to engine problems in international waters on the Pacific Ocean about 500 miles north of Papua, New Guinea. The helicopter, operated by O'Hara Helicopters, Inc., under 14 CFR Part 91 as a fish spotting operation, subsequently sank in deep water after rolling over in a large ocean swell. The pilot, who held an Australian commercial pilot certificate, and one passenger were not injured. Visual meteorological conditions prevailed for the aerial observation flight. The flight originated from a fishing vessel at an unknown time.
In the pilot's written statement to the Safety Board, he reported that this was the third flight of the day. After takeoff, at 100 feet, he felt a metal-on-metal grinding sensation through the cyclic and then a loud noise. The pilot noted that prior to the precautionary landing the helicopter responded "abnormally" to control inputs. He elected to land immediately on the water instead of attempting to return to the vessel due to safety precautions. The pilot stated that the ocean conditions were rough and after exiting the helicopter it was overturned by a large swell and sank. The pilot and observer were rescued from the water by the fishing vessel.
According to an inspector from the Federal Aviation Administration (FAA) International Flight Operations (IFO) division, who reviewed the FAA pilot certification database, the pilot did not possess a U.S. flight certificate.
Aircraft
- Registration
- N717ST
- Reported as
- Hughes 369HS
- Category
- Helicopter
- Serial number
- 350717S
- Airframe hours
- 6,221
- Engine
- Allison 250-C10, 315 horsepower, turbo shaft
- Damage
- Destroyed
- Flight
- Aerial observation · Part 91
- Registered owner
- O'Hara Helicopters Inc.
- Airworthiness certificate
- Special, Restricted (Special)
- Last inspection
- Annual · December 6, 1999 · 92 hours before
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 34
- Certificates
- Foreign, Commercial
- Medical
- Class 1, Valid Medical--no waivers/lim.
- Seat
- Left
- Flight hours
- 2,470 total · 365 in this make and model
Weather
- Conditions
- Visual (VMC) · Day
- Visibility
- 10 statute miles
- Lowest ceiling
- None
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.
Other investigations on N717ST · 1
Matched to the same aircraft by N-number and date.