GAA20CA006

NTSB accident investigation · Cessna 172 · Kaplan, LA · October 5, 2019

Accident · Minor injuriesData collectionFinal report
Date
October 4, 2019, 19:30 local (Oct 5, 2019, 00:30 UTC)
Place
Kaplan, LA
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N7871UCessna 172
Defining event
Enroute: Loss of engine power (total)
Weather
Visual (VMC) · Night/dark
Status
Completed · report May 21, 2020
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20191004019099A
Case key
100389

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 improper fuel management, which resulted in fuel starvation, a total loss of engine power, and impact with a pole during an off-airport landing.

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 managementCessna 172F: 7 casesAll aircraft: 1,695 casesProbable cause
Use of equip/info: use of equip/systemPersonnel issues › Task performance · PilotCessna 172F: 3 casesAll aircraft: 1,391 casesProbable cause
Object/animal/substance: poleEnvironmental issues › Physical environment · Effect on operationCessna 172F: 1 caseAll aircraft: 142 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 reported that, at departure, the airplane had 39 gallons of fuel and that, about 1 hour 40 minutes after departure, the engine lost power. He adjusted the fuel mixture and throttle to no avail. While he was maneuvering for an off-airport landing, the left wing impacted a pole. The airplane then rotated counterclockwise and impacted an open field, and the nose landing gear broke off. The airplane sustained substantial damage to the engine mount, fuselage, and both wings. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The sheriff's deputy who responded to the accident reported that he saw fuel pouring out of the left wing. The Federal Aviation Administrator inspector who examined the airplane reported that the fuel selector lever was positioned to the right tank. The right wing tank contained between about 8 and 10 ounces of fuel with no visible signs of leakage. The wing-to-fuselage lower trim panel was removed, and the vent line and fuel supply lines were intact and secured. The left wing tank contained about 4.5 gallons. Fuel seepage stains were seen on the forward part of the pilot door. The inspector added that the overall engine condition was good.

Factual narrative

The pilot reported that the airplane departed with 39 gallons of fuel, and about 1 hour and 40 minutes after departure the engine lost power. He adjusted the fuel mixture and throttle, with no effect. While maneuvering for an off-airport landing, the left wing impacted a pole and rotated the airplane counterclockwise. Subsequently, the nose landing gear collapsed and the airplane came to rest in an open field. The airplane sustained substantial damage to the engine mount, fuselage and both wings. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The sheriff's deputy, that responded to the accident, observed that there was fuel pouring out of the left wing of the airplane. The Federal Aviation Administrator inspector who examined the airplane reported that the fuel selector lever was on the right tank selected position. The right wing tank contained about 8-10 oz. of fuel remaining with no visible signs of leakage. Upon removal of wing to fuselage lower trim panel it was noted that the vent line and fuel supply lines were intact and secured. The left wing tank contained about 4.5 gallons. Visual evidence of fuel seepage stains were observed on forward part of pilot door. The inspector further added that the overall engine condition was good.

Aircraft

Registration
N7871U
Reported as
Cessna 172 (F)
Category
Airplane
Serial number
17251871
Built
1964
Airframe hours
3,951.67
Engine
Lycoming O-360-A4M, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Utility; Standard, Normal
Last inspection
Annual · August 22, 2018
Departed
DWH · Houston, TX
Destination
ARA · New Iberia, LA
Equipment
Handheld GPS, ADS-B, Stall warning system

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
56
Injuries
Minor
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
May 3, 2018
Seat
Left
Flight hours
500 total · 250 in this make and model

Weather

Conditions
Visual (VMC) · Night/dark
Wind
200° at 3 knots
Visibility
10 statute miles
Temperature
77 °F, dew point 75 °F
Altimeter
29.97 inHg
Observed at
KIYA, 13 nm away

Docket · 5

The files NTSB released with the investigation on December 11, 2019, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.5 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 N7871U · 1

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