LAX89LA129

NTSB accident investigation · Hughes 269C · Saipan, Sark · March 20, 1989

Accident · No injuriesLimited investigationFinal report
Date
March 20, 1989, 13:30 local (23:30 UTC)
Place
Saipan, Sark
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N7470FHughes 269C
Weather
Visual (VMC) · Day
Status
Completed · report June 28, 1991
Report
Approved by Office Director
FAA report
19890320004219A
Case key
26354

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

Failure of maintenance personnel to assure the helicopter was serviced with the proper grade of fuel. A factor realated to the accident was: the lack of a suitable landing area, which resulted in having to ditch the helicopter in the water.

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.

Loss of engine power(total) - nonmechanicalCruise
Fluid,fuel grade - improperCause
Maintenance,service of aircraft/equipment - improperOther maintenance personnelCause
Forced landingDescent - emergency
Autorotation - performedPilot in command
DitchingLanding - flare/touchdown
Terrain condition - none suitableFactor
Terrain condition - waterFactor

Analysis

The newly purchased helicopter was transported to Saipan by ship in a container. After unloading, the pilot, a mechanic and a mechanic's helper reassembled it on the dock. The helper was sent to buy some fuel for the helicopter, so it could be flown from the dock to the company base at the airport. The company had been operating turbine powered helicopters only; this was its first piston powered model. The helper went to the fuel facility and bought 10 gallons of jet-a fuel, which he used to service the helicopter. The pilot started the helicopter, did a run-up and took off for a 3 mile flight to the airport. However, the engine lost power and the pilot made an autorotation to a submerged reef in about 3 to 4 feet of water.

Aircraft

Registration
N7470F
Reported as
Hughes 269C
Category
Helicopter
Serial number
170553
Engine
Lycoming HIO-360-D1A, 190 horsepower, reciprocating
Damage
Substantial damage
Flight
Ferry · Part 91
Registered owner
Pacific Island Aviation
Airworthiness certificate
Standard, Normal

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
36
Certificates
Private, Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Flight hours
9,541 total · 550 in this make and model · 9,145 as pilot in command · 271 in the last 90 days · 90 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
30° at 10 knots
Visibility
15 statute miles
Lowest ceiling
3,000 ft broken
Temperature
88 °F
Altimeter
29.00 inHg
Observed at
PGSN, 3 nm away

FAA reports on this event · 1

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