CEN09CA021

NTSB accident investigation · Cessna 150M · Iowa City, IA · October 7, 2008

Accident · Serious injuriesData collectionFinal report
Date
October 6, 2008, 20:15 local (Oct 7, 2008, 01:15 UTC)
Place
Iowa City, IA
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N533JRCessna 150M
Defining event
Approach-VFR pattern final: Fuel exhaustion
Weather
Visual (VMC) · Night
Status
Completed · report December 3, 2008
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA-Des Moines FSDO
FAA report
20081006850369A
Case key
69296

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

Fuel exhaustion due to the pilot's failure to visually verify that sufficient fuel was on-board prior to flight.

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.

Fluids: fuelAircraft › Fluids/misc hardware · Inadequate inspectionCessna 150M: 11 casesAll aircraft: 1,695 casesProbable cause
Action: incomplete actionPersonnel issues › Action/decision · PilotCessna 150M: 1 caseAll aircraft: 105 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 planned a local night flight to an airport approximately 16 miles north-northwest of the departure airport. He noted that the fuel gauges indicated nearly full on the left fuel tank and about 1/3 on the right fuel tank. The pilot indicated that he had not visually checked the fuel level prior to flight, but had relied on the fuel gauge indications. He reported that after departure, the flight proceeded to the intermediate airport as planned. He executed a practice Instrument Landing System (ILS) approach and landed without incident. The pilot stated that before the return flight, the fuel gauges indicated "a little less than full" on the left fuel tank and about 1/4 on the right fuel tank. After takeoff, the flight proceeded direct to the intended destination at 2,500 feet mean sea level (msl). With no reported traffic in the area, the pilot selected a straight-in approach. However, about 3/4 of a mile from the runway the engine began to lose power. His efforts to restore full power were not successful. The mixture control had not been adjusted after takeoff and was at full rich for the entire flight. He attempted to stretch the glide to reach the runway, but the left wing struck a tree during the approach. The airplane subsequently impacted an adjacent roadway. A post accident inspection by a Federal Aviation Administration inspector revealed that the fuel tanks did not appear to be breached, and that only a small amount of fuel remained in the fuel tanks. A review of the airplane flight log and fueling records revealed that it had been flown 3.4 hours since it was last refueled. Manufacturer's documentation noted that the airplane’s fuel capacity was 26 gallons total, with 22.5 gallons usable. Fuel consumption ranged from 4.9 gallons per hour (gph) at 65-percent power to 5.9 gph at 78-percent power (full throttle) at 2,000 feet pressure altitude. Approximately an additional 0.8 gallons are consumed during start-up, taxi, and takeoff.

Factual narrative

The pilot planned a local night flight to an airport approximately 16 miles north-northwest of the departure airport. He noted that the fuel gauges indicated nearly full on the left fuel tank and about 1/3 on the right fuel tank. The pilot indicated that he had not visually checked the fuel level prior to flight, but had relied on the fuel gauge indications. He reported that after departure, the flight proceeded to the intermediate airport as planned. He executed a practice Instrument Landing System (ILS) approach and landed without incident. The pilot stated that before the return flight, the fuel gauges indicated "a little less than full" on the left fuel tank and about 1/4 on the right fuel tank. After takeoff, the flight proceeded direct to the intended destination at 2,500 feet mean sea level (msl). With no reported traffic in the area, the pilot selected a straight-in approach. However, about 3/4 of a mile from the runway the engine began to lose power. His efforts to restore full power were not successful. The mixture control had not been adjusted after takeoff and was at full rich for the entire flight. He attempted to stretch the glide to reach the runway, but the left wing struck a tree during the approach. The airplane subsequently impacted an adjacent roadway. A post accident inspection by a Federal Aviation Administration inspector revealed that the fuel tanks did not appear to be breached, and that only a small amount of fuel remained in the fuel tanks. A review of the airplane flight log and fueling records revealed that it had been flown 3.4 hours since it was last refueled. Manufacturer's documentation noted that the airplane’s fuel capacity was 26 gallons total, with 22.5 gallons usable. Fuel consumption ranged from 4.9 gallons per hour (gph) at 65-percent power to 5.9 gph at 78-percent power (full throttle) at 2,000 feet pressure altitude. Approximately an additional 0.8 gallons are consumed during start-up, taxi, and takeoff.

Aircraft

Registration
N533JR
Reported as
Cessna 150M
Category
Airplane
Serial number
15077267
Airframe hours
5,386
Engine
Cont Motor O-200, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Jet Air Inc
Registered owner
Jet Air Inc
Airworthiness certificate
Standard, Utility; Standard, Normal
Last inspection
Annual · September 24, 2008
Departed
CID · Cedar Rapids, IA
Destination
IOW · Iowa City, IA
Airport
IOW · Iowa City Muni, runway 12, 3,900 × 150 ft, concrete

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
64
Injuries
Serious
Certificates
Airline transport, Flight instructor
Airplane ratings
Multi-engine land, Single-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
July 8, 2008
Seat
Left
Flight hours
2,724 total · 722 in this make and model · 2,254 as pilot in command · 117 in the last 90 days · 55 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Night
Wind
120° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
68 °F, dew point 57 °F
Altimeter
30.06 inHg
Observed at
IOW, 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.