WPR09CA225

NTSB accident investigation · Rans S-7 · Atomic City, ID · May 1, 2009

Accident · No injuriesData collectionFinal report
Date
May 1, 2009, 13:30 local (19:30 UTC)
Place
Atomic City, ID
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N4272MRans S-7
Defining event
Initial climb: Fuel starvation
Weather
Visual (VMC) · Day
Status
Completed · report July 14, 2009
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
FAA report
20090501005029A
Case key
73766

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

On this page

Probable cause

A loss of engine power due to fuel starvation as a result of the pilot's inadequate fuel management.

Findings · 3

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.

Fluids: fuelAircraft › Fluids/misc hardware · Fluid managementSpaulding Errol RANS S-7 COURIER: 1 caseAll aircraft: 1,695 casesProbable cause

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/owner and a pilot rated passenger flew to a local airport for a brief stop, and then continued to another nearby airport where the passenger performed a touch-and-go. He had begun a slight right turn during the climbout from the touch-and-go when the engine lost power about 250 feet above ground level (agl). The owner took control, turned back to the left, and tried to land on the end of the runway. He leveled off slightly about 20 feet agl, and then flared for landing. The airplane landed hard on the north side of the runway and the right wheel broke off. The landing gear dug into the turf, the airplane spun 180 degrees, and the right main landing gear collapsed. The airframe around the tailwheel and rudder sustained substantial damage. The owner indicated that the airplane had a header tank that was the only fuel supply for the engine in addition to the wing tanks that were used to supply the header tank. He used an electric fuel pump to manually transfer fuel from the wing tanks to the header tank. He stated that he usually did not let the header tank get less than half full since the fuel pick-up port for the engine driven pump is at the front of the tank. He said that he probably let the fuel level get too low on this flight. During the climbout with the nose up, he surmised that the header tank fuel pick-up unported, resulting in the loss of power.

Factual narrative

The pilot/owner and a pilot rated passenger flew to a local airport for a brief stop, and then continued to another nearby airport where the passenger did a touch-and-go. He had begun a slight right turn during the climb out from the touch-and-go when the engine lost power about 250 feet above ground level (agl). The owner took control, turned back to the left, and tried to land on the end of the runway. He leveled off slightly about 20 feet agl, and then flared for landing. The airplane landed hard on the north side of the runway, and the right wheel broke off. The landing gear dug into the turf; the airplane spun 180 degrees, and the right main landing gear collapsed. The airframe around the tail wheel and rudder sustained substantial damage. The owner indicated that the airplane had a header tank that was the only fuel supply for the engine in addition to the wing tanks that were used to supply the header tank. He used an electric fuel pump to manually transfer fuel from the wing tanks to the header tank. He stated that he usually doesn't let the header tank get less than half full since the fuel pick-up port for the engine driven pump is at the front of the tank. He said that he probably let the fuel level get too low on this flight. During the climb out with the nose up, he surmised that the header tank fuel pick-up unported, resulting in the loss of power.

Aircraft

Registration
N4272M
Reported as
Rans S-7
Category
Airplane, amateur-built
Serial number
0693110
Airframe hours
2,593
Engine
Rotax 912, 80 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Errol Spaulding
Registered owner
Errol Spaulding
Airworthiness certificate
Special, Experimental light sport (Special)
Last inspection
Condition · November 8, 2008
Departed
U46 · Atomic City, ID
Destination
U48 · Atomic City, ID
Airport
U48 · Coxs Well, runway 26, 2,700 × 100 ft, grass/turf

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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
68
Injuries
None
Certificate
Sport Pilot
Airplane ratings
Single-engine land
Medical
Sport pilot
Last flight review
March 13, 2009
Seat
Front
Flight hours
2,900 total · 2,593 in this make and model · 2,900 as pilot in command · 14 in the last 90 days · 8 in the last 30 days · 2 in the last 24 hours
Role
Co-pilot
Age
53
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Last flight review
July 5, 2007
Seat
Rear
Flight hours
760 total · 400 in this make and model · 700 as pilot in command · 9 in the last 90 days · 3 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
320° at 7 knots
Visibility
10 statute miles
Lowest ceiling
5,000 ft broken
Temperature
54 °F, dew point 30 °F
Altimeter
30.04 inHg
Observed at
KPIH, 38 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.

Other investigations on N4272M · 1

Matched to the same aircraft by N-number and date.