CHI08LA180

NTSB accident investigation · Smith Aerostar 601P · Alexandria, MN · July 2, 2008

Accident · Minor injuriesLimited investigationFinal report
Date
July 2, 2008, 07:00 local (12:00 UTC)
Place
Alexandria, MN
Injuries
4 minor
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N601TSSmith Aerostar 601P
Defining event
Initial climb: Loss of engine power (partial)
Weather
Visual (VMC) · Day
Status
Completed · report September 30, 2009
Report
Approved by Office Director
Parties
FAA-Minneapolis FSDO
FAA report
20080702841789A
Case key
68658

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 for undetermined reasons. Contributing to the accident was the unsuitable terrain for the forced landing.

Findings · 2

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Not determinedNot determined › Not determined · Unknown/Not determinedSmith AEROSTAR 601P: 1 caseAll aircraft: 2,247 casesProbable cause
TerrainEnvironmental issues › Physical environment · Contributed to outcomeSmith AEROSTAR 601P: 1 caseAll aircraft: 267 cases

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The pilot reported that on the previous flight the left engine surged at 14,700 feet and the flight could not be conducted at the planned altitude of 19,000 feet. He stated that during descent to land the engines performed normally at lower altitudes. After landing he talked with a mechanic on the telephone and a decision was made to conduct the next leg of the trip at a lower altitude. During the takeoff, a loss of power was experienced and the pilot attempted to return to the airport. During the turn back to the airport, the airplane lost altitude and the pilot decided to turn away from the populated areas and land the airplane in a field. During the landing the airplane struck a ditch. An examination of the airplane subsequent to the accident did not reveal any defects that would have resulted in a loss of engine power.

Factual narrative

On July 2, 2008, about 0700 central daylight time, a Smith Aerostar 601P, N601TS, piloted by an airline transport pilot, sustained substantial damage during a forced landing following a loss of engine power on takeoff from the Chandler Field Airport, Alexandria, Minnesota. The 14 CFR Part 91 business flight was operating in visual meteorological conditions on an instrument flight rules flight plan. There were no injuries reported to the pilot or three passengers. The flight was originating at the time of the accident and Saint Louis, Missouri, was the intended destination.

The pilot reported that on the previous flight the left engine experienced surging at 14,700 feet and the flight could not be conducted at the expected altitude of 19,000 feet. He stated that during descent the engines performed normally at lower altitudes. After landing, he talked with a mechanic on the telephone and a decision was made to conduct the next leg of the trip at a lower altitude. He stated that during the takeoff, as he rotated, he noticed that the airplane's performance was less than usual. He determined that insufficient runway remained to abort the takeoff and he elected to continue and return to the airport. He stated that he was unable to determine which engine was the reason for the power loss. He stated that he was unable to climb higher than 150 feet above the ground or to accelerate beyond 110 miles per hour. The pilot reported that while attempting to turn back to the airport he lost speed and decided to turn the airplane away from the populated areas and land in a field that was southeast of the airport. He reported that he touched down on level terrain, but the airplane subsequently struck a drainage ditch during the landing.

Both engines were Lycoming model IO-540-S1A5 engines and each had 4,316.5 hours total time in service. The most recent overhaul of the engines was performed on July 1, 1994, and each engine had accumulated 458 hours since that overhaul.

The airplane was examined subsequent to the accident. Both engines were rotated by hand and "thumb" compression was evident. Fuel was found in the fuel lines leading to the fuel servos and to the fuel manifolds. Fuel was found within the airplane's fuel tanks. Magneto timing was checked and was found to be within specifications. Examination did not reveal any defects that would have resulted in a loss of engine power.

Aircraft

Registration
N601TS
Reported as
Smith Aerostar 601P
Category
Airplane
Serial number
61P-0194-014
Engines
Lycoming IO-540, 290 horsepower, reciprocatingLycoming IO-540, 290 horsepower, reciprocating
Damage
Substantial damage
Flight
Business · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · November 2, 2007
Departed
AXN · Alexandria, MN
Destination
IH0 · St Louis, MO
Flight plan
IFR
Airport
AXN · Chandler Field Airport

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
59
Injuries
None
Certificates
Commercial, Airline transport, Flight instructor
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 3, With waivers/limitations
Last flight review
April 19, 2008
Seat
Left
Flight hours
8,600 total · 32 in this make and model · 8,200 as pilot in command · 69 in the last 90 days · 25 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
360° at 12 knots
Visibility
8 statute miles
Lowest ceiling
None
Temperature
63 °F, dew point 48 °F
Altimeter
30.00 inHg
Observed at
AXN, 1 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.