LAX05CA004

NTSB accident investigation · Hughes 369HS · Pacific Ocean (Pacific Ocean) · October 6, 2004

Accident · No injuriesData collectionFinal report
Date
October 6, 2004, 15:15 local (15:15 UTC)
Place
Pacific Ocean (Pacific Ocean)
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N74AMHughes 369HS
Weather
Visual (VMC) · Day
Status
Completed · report December 28, 2004
Report
Approved by Office Director
FAA report
20041006035249A
Case key
60341

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

the pilot's inadequate preflight inspection to ensure that all tie downs were removed from the helicopter, which resulted in a dynamic rollover.

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.

Roll overTakeoff
Landing gear,skid assembly - movement restricted
Aircraft preflight - inadequatePilot in commandCause
Dynamic rollover - encounteredPilot in command
Misc eqpt/furnishings,aircraft tie-down(s) - not removedCause

Analysis

While attempting to takeoff from a fishing vessel on the high seas, the helicopter rolled onto its side. The tail boom was severed by the main rotor blades and the main rotor blades were destroyed. The pilot attempted to take off with the left tie-down still attached to the helicopter landing gear.

Factual narrative

On October 6, 2004, at 1515 local ship time (FSM), a single-engine Hughes 369HS, N74AM, rolled over on its side while attempting to takeoff from the ship Purse Seiner operating in international waters near Pohnpei, Federated States of Micronesia. Fling Air, Inc., operated the airplane under the provisions of 14 CFR Part 91. The helicopter sustained substantial damage. The helicopter rated commercial pilot, the sole occupant, was not injured. There were no injuries to other ship crewmembers. Visual meteorological conditions prevailed for the local area aerial observation flight, and no flight plan had been filed. The flight was originating and scheduled to terminate on board the ship Purse Seiner.

According to the Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1/2), the helicopter was based on board the ship. The ship was operating on the high seas for fishing operations. The pilot attempted to takeoff while the left tie-down was still attached to the helicopter. The helicopter rolled onto its left side, and the main rotor blades severed the tail boom. The tail boom sank in the water. The main rotor blades were destroyed.

Aircraft

Registration
N74AM
Reported as
Hughes 369HS
Category
Helicopter
Serial number
1250790S
Engine
Allison 250-C18, turbo shaft
Damage
Substantial damage
Flight
Aerial observation · Part 91
Registered owner
Fling Air Inc.
Airworthiness certificate
Special, Restricted (Special)
Departed
Pacific Ocean, PO
Destination
Pacific Ocean, PO

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
57
Certificate
Commercial
Medical
Class 2
Flight hours
11,100 total · 5,100 in this make and model

Weather

Conditions
Visual (VMC) · Day

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.