FLIGHT FINDINGSAVIATION OCCURRENCE MAP
Back to map

CEN19FA325 · Cessna A185 F

21 Sept 2019 · Conroe, TX, United States

Cessna A185 F · Accident: fuel contamination during takeoff

Report a problem

Event

NTSB case
CEN19FA325
Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
Accident
InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
Completed
API-reported fatalities
2 · all aircraft and ground
Ground fatalities
Unknown
OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
General aviation
WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
Visual Meteorological Cond

Cessna A185 F

Aircraft type
Cessna 185
Category
Airplane
RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
C-GOZJ
Operator
Unknown
Onboard fatalities
Unknown
Route
From not recordedTo not recorded
Aircraft age
About 45 years (built 1974)
Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
Part 91: General Aviation
Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
Takeoff
Defining eventThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
Fuel contamination
DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
Destroyed

Cause areas

  • Aircraft › Aircraft oper/perf/capability
  • Aircraft › Fluids/miscellaneous hardware
  • Personnel issues › Task performance

Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.

NTSB narrative

The pilot and pilot-rated passenger had just departed and planned to depart the airport area. During the initial takeoff climb, the pilot-rated passenger reported to air traffic control that she had a “fuel issue/problem” and was going to return to the airport. A witness stated that the engine made a loud "pop pop" sound followed by a decrease in engine power. A few seconds later, the witness heard the engine power increase again. According to the air traffic controller, the airplane’s left bank continued to increase, and he cleared the airplane to land on any runway. The airplane subsequently impacted terrain in a nose-low attitude.

Postaccident examination of the airplane revealed that the left wing contained about one gallon of fuel and about 6 oz of water. The source of the water could not be determined. No other anomalies were noted with the airframe. Examination and a functional test of the engine did not reveal any anomalies that would have precluded normal operation. It is likely that the engine lost power shortly after takeoff due to the water contamination found in the fuel tank. It is also likely that during the steep bank turn towards the airport, the pilot allowed the airplane to exceed the critical angle of attack which resulted in an aerodynamic stall and subsequent impact with the ground. Based on the toxicology results, it is likely that the pilot had taken the sedating prescription medication clonazepam. Clonazepam is used to treat seizure disorder and panic disorder. The inactive metabolite was detected in blood and urine suggesting the use of the medication occurred several days before the accident. Given the lack of the active compound it is unlikely the pilot’s use of clonazepam contribute to this accident. Ethanol was detected in the pilot’s blood, but not in his urine. It is likely that the identified ethanol was from sources other than ingestion and did not contribute to this accident.

Probable cause

A partial loss of engine power due to fuel contamination with water, and the pilot’s failure to maintain control of the airplane during an attempted return to the airport shortly after takeoff, which resulted in an aerodynamic stall.

Verbatim NTSB analysis and probable cause from the NTSB dataset

Sources

NTSB record CEN19FA325
Event ID
20190921X12124
Case number
CEN19FA325
Dataset
full-current
Source SHA-256
5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
Source notes (4)
  • Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
  • Filled from the NTSB case API where the bulk record had no value: investigation status, cause areas. Values present in the bulk record are kept.
  • The date is the local date, which is the same as the UTC date the NTSB stores.
  • API snapshot SHA-256: 5a01c5caff0813a72460eb682d2b9fec0847050066a7c054f6baeaa5e22aaab1; retrieved 2026-09-15T07:05:54.485Z.