WPR18LA246

NTSB accident investigation · Cessna 140 · Tehachapi, CA · August 31, 2018

Accident · No injuriesClass 3 · LimitedFinal report
Date
August 30, 2018, 19:02 local (Aug 31, 2018, 02:02 UTC)
Place
Tehachapi, CA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N2167VCessna 140
Defining event
Initial climb: Fuel exhaustion
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 3
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration FSDO
FAA report
20180830012629A
Case key
98198

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 pilot's inadequate fuel planning, which resulted in fuel exhaustion and a total loss of engine power during the initial climb.

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 · Fluid levelCessna 140: 6 casesAll aircraft: 1,695 casesProbable cause
Planning/preparation: fuel planningPersonnel issues › Task performance · PilotCessna 140: 3 casesAll aircraft: 719 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

During the preflight inspection, the pilot determined that the left fuel tank was empty and the right tank contained 4 gallons of fuel (capacity 12 1/2 gallons). After discovering that the airport fuel pumps were inoperative, the pilot decided to proceed with the flight and remain in the airport traffic pattern. The pilot performed a series of touch-and-go takeoff and landings and during the initial climb phase of the fifth takeoff, the engine lost total power. The pilot attempted a 180° turn back to the runway, during which the airplane impacted the taxiway, resulting in substantial damage. Due to the airplane's vintage, operational and performance details such as fuel consumption and unusable fuel quantity were unavailable; however, a placard on the fuel gauges indicated that takeoff should not be attempted if the tank was filled to just under 1/4 of its capacity. It is likely that the airplane consumed the remainder of the usable fuel during the flight, which resulted in fuel exhaustion and the total loss of engine power.

Factual narrative

On August 30, 2018, at 1902 Pacific daylight time a Cessna 140, N2167V, was substantially damaged when it was involved in an accident near Tehachapi, California. The private pilot was not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The pilot stated that during the preflight inspection, she utilized a dipstick and determined that the left fuel tank was empty and the right tank contained 4 gallons of fuel. She taxied the airplane to the fuel pumps, but upon arrival, discovered that they were inoperative. Based on fuel consumption during previous flights, she concluded that she had enough fuel for 30 minutes of flight, and decided to proceed with the flight and remain in the traffic pattern for runway 29. The pilot performed a series of touch-and-go takeoff and landings. About 20 minutes into the flight, during the fifth landing roll, she decided to perform one more takeoff. Shortly after rotation, about 50 ft above ground level, the engine lost total power. With limited runway available, and hangars to the left and a busy highway to the right, she decided to attempt a 180° left turn back to the runway. During the turn, the airplane struck the adjacent taxiway to the south, its left main landing gear collapsed, and it came to rest left wing down. According to Federal Aviation Administration (FAA) records, the high-wing airplane was manufactured in 1947 and purchased by the pilot in May 2018. It was originally equipped with a Continental C-90 engine and refitted with a Continental O-200-A engine in October 2000. The airplane was equipped with 12 ½-gallon fuel tanks in each wing, both fitted with a mechanical direct reading fuel quantity gauge, installed at the wing roots and visible within the cabin. The fuel gauges were placarded with graduations noting F [full], 3/4, 1/2, and 1/4 tank capacity. The area below the 1/4 marking was shaded red in color with the marking, "NO TAKE OFF." Fuel was gravity-fed from the tanks to a tank selector valve mounted on the cabin floor. The selector valve provided settings for fuel flow from either the right or left tank, shut-off, and a "both" position to provide fuel flow from both tanks simultaneously. The tanks were interconnected with a vent line. Due to the vintage of the airplane, limited operational and performance details were available, and useable fuel and fuel consumption with the equipped O-200-A engine could not be confirmed. According to the 1969 Cessna 150(J) Owner's Manual, the Continental O-200-A engine consumed between 3.0 and 6.4 gallons of fuel per hour while flying at an altitude of 5,000 feet msl. The manual estimated the fuel used during takeoff and climb at sea level was 0.6 gallons, and 1.6 gallons from sea level to 5,000 ft. The climb consumption included allowances for engine warm-up and takeoff. An FAA inspector and an A&P mechanic examined the airplane following the accident. They did not observe any indications of pre-accidentmechanical failure, and the fuel selector valve appeared set to the right tank. During the examination, they drained about 4 1/2 gallons of total fuel from the airplane, 3 gallons of which they determined was from the right tank.

Aircraft

Registration
N2167V
Reported as
Cessna 140 (Undesignat)
Category
Airplane
Serial number
14396
Built
1947
Airframe hours
3,806.31
Engine
Continental O-200-A, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 23, 2018 · 2 hours before
Departed
TSP · Tehachapi, CA
Destination
TSP · Tehachapi, CA
Airport
TSP · Tehachapi Muni, runway 29, 4,040 × 75 ft, asphalt
Equipment
Handheld GPS

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
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Last flight review
May 19, 2018
Seat
Left
Restraint
4-point
Flight hours
173.8 total · 67.6 in this make and model · 136.5 as pilot in command · 50 in the last 90 days · 15.1 in the last 30 days · 0.4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
310° at 10 knots, gusting 14
Visibility
10 statute miles
Lowest ceiling
None
Temperature
66 °F, dew point 45 °F
Altimeter
30.09 inHg
Observed at
KTSP

Docket · 5

The files NTSB released with the investigation on May 11, 2021, on NTSB’s docket system: statements, records, photos and specialists’ reports. 5.0 MB in all.

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 N2167V · 1

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