LAX97LA154

NTSB accident investigation · Piper PA-31-350 · Pacific Ocean (Pacific Ocean) · April 10, 1997

Accident · No injuriesLimited investigationFinal report
Date
April 10, 1997, 07:06 local (17:06 UTC)
Place
Pacific Ocean (Pacific Ocean)
Injuries
2 uninjured
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N27659Piper PA-31-350
Weather
Visual (VMC) · Day
Status
Completed · report October 14, 1997
Report
Approved by Office Director
FAA report
19970410005669A
Case key
29767

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 loss of engine power in one engine for undetermined reasons. A factor in the accident was the aircraft's diminished single engine performance during the early portion of the overweight ferry flight.

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 powerCruise
1 engine
Reason for occurrence undeterminedCause
Forced landingDescent - emergency
Aircraft performance,engine out capability - exceededFactor
DitchingDescent - emergency

Analysis

The aircraft was being operated on a trans-Pacific ferry flight. A special flight permit authorized a gross weight increase and ferry fuel tanks had been installed along with long range communication and navigation radios. The pilot reported that when 85 miles from the departure airport, the right engine failed and he was unable to restart it. Power from the remaining engine was insufficient to maintain level flight at the overweight condition and the pilot permitted the aircraft to drift down until it was necessary to ditch in the ocean 28 miles offshore. The pilot had departed and returned to Hawaii twice previously. The first time he returned due to an oil leak on the left engine, and the second time because of a loose window. A mechanic who repaired the window reported that the left engine appeared to still be leaking oil. Both pilots told the FAA inspector that the oil leak had been repaired.

Factual narrative

On April 10, 1997, at 0706 hours Hawaiian standard time, a Piper PA-31-350, N27659, was destroyed when it ditched in the Pacific ocean, 30 miles northeast of Hilo, Hawaii, following loss of power in one engine. The aircraft departed Hilo on a VFR flight plan at 0546. The ferry flight was destined for Hayward, California, and visual meteorological conditions prevailed. Both of the airline transport pilots were not injured.

The aircraft was being operated on a special (ferry) flight permit which authorized a gross weight increase to 9,500 pounds. Ferry fuel tanks had been installed, along with long range communication and navigation radios.

The pilot reported that when 85 miles northeast of Hilo, the right engine failed in a slow, gradual loss of power, and he was unable to restart it. He feathered the propeller, declared an emergency, and reversed course. Power from the remaining engine was insufficient to maintain level flight at the overweight condition, and he permitted the aircraft to drift down until he ditched in the ocean 28 miles offshore. He and the other pilot evacuated the aircraft into life rafts, the aircraft sank, and they were rescued by Coast Guard helicopters about 2 hours later.

The location of the ditching was latitude 20 degrees 05.34 minutes north, and 154 degrees 40.04 minutes west.

According to inspectors from the FAA Honolulu Flight Standards District Office, the pilot had departed and returned to Hawaii twice previously. The first time he returned due to an oil leak on the left engine, and the second time because the pilot's openable window was "coming off". A mechanic who repaired the window reported that the left engine appeared to still be leaking oil. Both pilots told the FAA inspector that the oil leak had been repaired.

Aircraft

Registration
N27659
Reported as
Piper PA-31-350
Category
Airplane
Serial number
31-7852090
Airframe hours
5,074
Engine
Lycoming TIO-540-J2BD, 350 horsepower, reciprocating
Damage
Destroyed
Flight
Ferry · Part 91
Operator
Pilot Services Intl
Registered owner
Paragon Air, Inc.
Airworthiness certificate
Standard, Normal; Special, Special flight (Special)
Last inspection
Annual · January 31, 1997 · 6 hours before
Departed
ITO · Hilo, HI
Destination
HWD · Hayward, CA
Flight plan
VFR

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
28
Certificates
Commercial, Airline transport, Flight instructor
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
5,700 total · 15 in this make and model · 5,400 as pilot in command · 150 in the last 90 days · 50 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
220° at 5 knots
Visibility
15 statute miles
Lowest ceiling
None
Temperature
66 °F, dew point 64 °F
Altimeter
29.00 inHg
Observed at
ITO, 30 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.