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ATL92LA035 · Cessna 172G

11 Jan 1992 · Millen, GA, United States

Georgia Flight Cessna 172G · Accident: partial loss of engine power (non-mechanical) en route

From Athens Ben Epps Airport (AHN) to Savannah Hilton Head International Airport (SAV)

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Event

NTSB case
ATL92LA035
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
0 · all aircraft and ground
Ground fatalities
0
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 172G

Aircraft type
Cessna 172
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
N5866R
Onboard fatalities
Unknown
Route
From Athens Ben Epps Airport (AHN), Athens, GATo Savannah Hilton Head International Airport (SAV), Savannah, GA
Aircraft age
Not recorded
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
En route · cruise
First occurrenceThe 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
Partial loss of engine power (non-mechanical)
DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
Substantial

Cause areas

  • Pilot in command › Carburetor heat, delayed

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

NTSB narrative

WHILE EN ROUTE TO SAVANNAH, GEORGIA AT 5000 FEET, THE PILOT REPORTED A REDUCTION IN ENGINE POWER. REPORTEDLY, HE CHANGED THE MIXTURE SETTING AND APPLIED CARBURETOR HEAT IN AN ATTEMPT TO RESTORE FULL POWER, BUT THE ENGINE POWER REDUCTION CONTINUED TO A POINT WHERE POWERED FLIGHT WAS NO LONGER POSSIBLE. A FORCED LANDING WAS MADE TO AN OPEN FIELD. DURING THE GROUND ROLL OUT, THE AIRPLANE ROLLED THROUGH A FENCE, CROSSED A ROAD, AND FLIPPED INVERTED AFTER COLLIDING WITH A SECOND FENCE. THE WRECKAGE EXAMINATION FAILED TO DISCLOSE A MECHANICAL FAILURE OR SYSTEM MALFUNCTION. HOWEVER, ACCORDING TO THE ICING PROBABILITY CURVE, WEATHER CONDITIONS NEAR THE ACCIDENT SITE WERE FAVORABLE FOR THE FORMATION OF CARBURETOR ICE.

Probable cause

THE PILOT'S FAILURE TO PROPERLY USE CARBURETOR HEAT DURING ICING CONDITIONS WHICH RESULTED IN THE FORMATION OF CARBURETOR ICE AND SUBSEQUENT LOSS OF ENGINE POWER.

Verbatim NTSB analysis and probable cause from the NTSB dataset

Sources

NTSB record ATL92LA035
Event ID
20001211X13934
Case number
ATL92LA035
Dataset
historical-pre2008
Source SHA-256
89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
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. 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: 27b240837be61cb3b29f0e54bf4bd0c3257952bd138239f81971815edf9bb479; retrieved 2026-09-21T23:21:51.955Z.