GAA17CA230

NTSB accident investigation · Cessna 180 · Manchester, CA · April 12, 2017

Accident · No injuriesData collectionFinal report
Date
April 12, 2017, 10:51 local (17:51 UTC)
Place
Manchester, CA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N7945VCessna 180
Defining event
Enroute-cruise: Fuel exhaustion
Weather
Visual (VMC) · Day
Status
Completed · report October 31, 2017
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
Continental Motors, FAA
FAA report
20170412016499A
Case key
94999

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

The pilot’s improper preflight fuel planning, which resulted in fuel exhaustion and the total loss of engine power.

Findings · 4

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 180H: 1 caseAll aircraft: 1,695 casesProbable cause
Planning/preparation: fuel planningPersonnel issues › Task performance · PilotCessna 180H: 1 caseAll aircraft: 719 casesProbable cause
WindEnvironmental issues › Conditions/weather/phenomena · Effect on operationCessna 180H: 1 caseAll aircraft: 110 cases
Runway/land/takeoff/taxi surfaceEnvironmental issues › Physical environment · Contributed to outcomeCessna 180H: 3 casesAll aircraft: 253 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, during cruise flight, the engine "quit" while at 1,500 ft above ground level. He added that he landed the airplane in a large, flat pasture, but during the landing, the airplane nosed over. The airplane sustained substantial damage to the tail and wings. In a telephone conversation with the recovery specialist, the pilot reported that the fuel tanks had not been breached during the landing, and he recovered 1.5 gallons of fuel from the right fuel tank and 2.5 gallons of fuel from the left fuel tank. The airplane was equipped with an engine monitoring unit. About 1 hour 13 minutes of data were recorded during the accident flight. The data showed a sudden decrease in exhaust gas temperatures and cylinder head temperatures for all cylinders about the same time. For further information, see the JPI Engine Monitoring Unit data plot in the public docket for this accident. The 1967 Cessna 180 Owner's Manual states, in part: "2.5 gallons [in] each tank [is] unusable in normal flight maneuvers."

Factual narrative

The pilot reported that, during cruise flight, the engine "quit" while at 1500 ft above the ground. He added that he landed the airplane in a large, flat pasture, but during the landing the airplane nosed over. In a telephone conversation with the recovery specialist, he reported that the fuel tanks had not been breached during the landing, and he recovered 1.5 gallons of fuel from the right fuel tank and 2.5 gallons of fuel from the left fuel tank. The airplane was equipped with a J. P. Instruments (JPI) engine monitoring unit. The data downloaded from the unit revealed that on the accident flight, the recorded data spanned about 1 hour and 13 minutes. The data showed a sudden decrease in exhaust gas temperatures (EGT) and cylinder head temperatures (CHT) for all cylinders about the same time. For further information, see the JPI Engine Monitoring Unit data plot within the public docket for this accident. The 1967 Cessna 180 Owner's Manual states, in part: "2.5 gallons each tank unusable in normal flight maneuvers."

Aircraft

Registration
N7945V
Reported as
Cessna 180 (H)
Category
Airplane
Serial number
18051845
Built
1967
Airframe hours
5,144.59
Engine
Continental O-470-50, 235 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Continuous airworthiness · February 13, 2017
Departed
EKA · Eureka, CA
Destination
O69 · Petaluma, CA
Equipment
Handheld GPS, Stall warning system, ADS-B, Electronic flight bag or handheld device, Electronic primary flight display

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
60
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land, Single-engine sea
Medical
Class 3, Without waivers/limitations
Last flight review
June 26, 2016
Seat
Left
Restraint
3-point
Flight hours
1,332.5 total · 602.7 in this make and model · 1,332.5 as pilot in command · 18 in the last 90 days · 18 in the last 30 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
340° at 5 knots
Visibility
10 statute miles
Lowest ceiling
10,000 ft overcast
Temperature
68 °F, dew point 54 °F
Altimeter
30.21 inHg
Observed at
89Q, 2 nm away

Docket · 6

The files NTSB released with the investigation on October 2, 2017, on NTSB’s docket system: statements, records, photos and specialists’ reports. 6.1 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.