SEA99LA100

NTSB accident investigation · Piper PA-31-350 · Garden Valley, ID · July 3, 1999

Accident · Minor injuriesLimited investigationFinal report
Date
July 3, 1999, 12:00 local (18:00 UTC)
Place
Garden Valley, ID
Injuries
2 minor, 6 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N3528YPiper PA-31-350
Weather
Visual (VMC) · Day
Status
Completed · report November 30, 2000
Report
Approved by Office Director
FAA report
19990703008039A
Case key
46818

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 NTSB’s determination of the probable cause, and any contributing factors.

Loss of engine power due to fuel exhaustion because the pilot failed to refuel the airplane. A ditch in the landing area was a contributing factor in the accident.

Analysis

The pilot reported that while in cruise configuration, the low fuel pressure lights illuminated and the left engine began to surge. The pilot selected cross-feed and the engine functioned normally . Three to four minutes after selecting cross-feed, the left engine began to surge again. With the right engine still operating, the pilot secured the left engine and executed a forced landing in an open field. During the landing roll, the aircraft collided with a ditch and the nose gear collapsed, causing substantial damage to the aircraft's fuselage. An FAA inspector inspected the aircraft after the accident and reported that there was no evidence of fuel in the aircraft's fuel tanks. He also stated the fuel system was not breached and there was no evidence of a preexisting fuel leak. In a written statement, the pilot reported that there were no mechanical malfunctions or failures with the aircraft at the time of the accident.

Factual narrative

On July 3, 1999, about 1200 mountain daylight time, a Piper PA-31-350, N3528Y, registered to Mountain Bird, Inc. and operated by Salmon Air, Salmon, Idaho, as a 14CFR135 non-scheduled passenger flight, was substantially damaged after a forced landing near Garden Valley, Idaho. Visual meteorological conditions prevailed and a company VFR flight plan was on file. The commercial pilot and five passengers were not injured; two passenger sustained minor injuries. The flight originated from Lemhi County Airport, Salmon, Idaho, approximately 30 minutes prior to the accident. The flight's original destination was Boise, Idaho. There was no report of fire or ELT activation.

The pilot reported that while in cruise configuration, the low fuel pressure lights illuminated and the left engine began to surge. The pilot selected cross-feed and the engine functioned normally . Three to four minutes after selecting cross-feed the left engine began to surge again. With the right engine still operating, the pilot secured the left engine and executed a forced landing in an open field. During the landing roll (approximately 30 knots), the aircraft collided with a ditch and the nose gear collapsed, causing substantial damage to the aircraft's fuselage.

A Federal Aviation Administration inspector from the Boise Flight Standards District Office, Boise, Idaho, inspected the aircraft after the accident and reported that there was no evidence of fuel in the aircraft's fuel tanks. He also stated the fuel system was not breached and there was no evidence of a preexisting fuel leak.

In a written statement, the pilot reported that there were no mechanical malfunctions or failures with the aircraft at the time of the accident.

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 - normal
Fluid,fuel - exhaustionCause
Refueling - not performedPilot in commandCause
Gear collapsedEmergency descent/landing
Terrain condition - ditchFactor

Aircraft

Registration
N3528Y
Reported as
Piper PA-31-350
Category
Airplane
Serial number
317952149
Airframe hours
8,559
Engine
Lycoming TIO-540, 350 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 135
Operator
Salmon Air, Inc., doing business as Salmon Air
Registered owner
Mountain Bird Inc
Airworthiness certificate
Standard, Normal
Last inspection
Continuous airworthiness · June 3, 1999 · 39 hours before
Departed
SMN · Salmon, ID
Destination
BOI · Boise, ID
Flight plan
Company VFR

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
26
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
1,050 total · 35 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 8 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
64 °F
Altimeter
29.00 inHg
Observed at
BOI, 33 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.