20251010019349A

Accident · Substantial damage

FAA accident report · Cessna 172G · Sandersville, GA · October 10, 2025

Date
October 10, 2025 · 20:13 local
Place
Sandersville, GA
Airport
Kaolin Field
Phase of flight
Takeoff: Climb Out
Operating rules
General operating rules (Part 91)
Damage
Substantial damage
Aircraft
N4390L
NTSB investigation
NTSBERA26LA012
Reported as
Cessna 172G
Reported engine
Continental 0-300 series
People aboard
2
Fatal injuries
0
Other injuries
0
Pilot’s certificates
Commercial pilot, flight instructor
Pilot’s flight hours
1,437 total1,200 in this make and model100 in the last 90 days

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

The PIC stated during his preflight that several ounces of water was drained from the left and right fuel tanks. He stated that he drained the gasculator using the push-pull cable to actuate the drain valve but did not collect the fuel sample for inspection. Following the preflight, he stated that the engine run-up checks were normal. During the take-off climb at approximately 250 feet, the engine failed. The PIC lowered the nose to maintain airspeed until contacting trees. The aircraft came to rest in a near vertical position. During the investigation the primary fuel vent was found completely blocked with a mud-dobber nest, however both fuel tanks had vented fuel caps installed. The gasculator was found to have mixture of automotive fuel and avgas. It contained a jelly-slime like substance which was consistent with ethanol’s absorption of water. The gasculator bowl and fuel screen contained debris consistent with the corrosion found inside the bowl. The gasculator push-pull drain cable was binding which would not allow operation of the drain valve. The float chamber of the carburetor contained rust and a trace of water.

As the FAA filed it

THE PIC STATED DURING HIS PREFLIGHT THAT SEVERAL OUNCES OF WATER WAS DRAINED FROM THE LEFT AND RIGHT FUEL TANKS. HE STATED THAT HE DRAINED THE GASCULATOR USING THE PUSH-PULL CABLE TO ACTUATE THE DRAIN VALVE BUT DID NOT COLLECT THE FUEL SAMPLE FOR INSPECTION. FOLLOWING THE PREFLIGHT, HE STATED THAT THE ENGINE RUN-UP CHECKS WERE NORMAL. DURING THE TAKE-OFF CLIMB AT APPROXIMATELY 250 FEET, THE ENGINE FAILED. THE PIC LOWERED THE NOSE TO MAINTAIN AIRSPEED UNTIL CONTACTING TREES. THE AIRCRAFT CAME TO REST IN A NEAR VERTICAL POSITION. DURING THE INVESTIGATION THE PRIMARY FUEL VENT WAS FOUND COMPLETELY BLOCKED WITH A MUD-DOBBER NEST, HOWEVER BOTH FUEL TANKS HAD VENTED FUEL CAPS INSTALLED. THE GASCULATOR WAS FOUND TO HAVE MIXTURE OF AUTOMOTIVE FUEL AND AVGAS. IT CONTAINED A JELLY-SLIME LIKE SUBSTANCE WHICH WAS CONSISTENT WITH ETHANOL’S ABSORPTION OF WATER. THE GASCULATOR BOWL AND FUEL SCREEN CONTAINED DEBRIS CONSISTENT WITH THE CORROSION FOUND INSIDE THE BOWL. THE GASCULATOR PUSH-PULL DRAIN CABLE WAS BINDING WHICH WOULD NOT ALLOW OPERATION OF THE DRAIN VALVE. THE FLOAT CHAMBER OF THE CARBURETOR CONTAINED RUST AND A TRACE OF WATER.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.