ATL89LA118 · Piper PA-16
Piper PA-16 · Accident: partial loss of engine power (non-mechanical) en route
From Macon Downtown Airport (MAC) to an unrecorded destination
Event
- NTSB case
- ATL89LA118
- 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
Piper PA-16
- Aircraft type
- Piper PA-16
- 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
- N5368H
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Macon Downtown Airport (MAC), Macon, GATo not recorded
- 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
- Induction air control/system › Ice
- Pilot in command › Carburetor heat, delayed
- Pilot in command › Unsuitable terrain or takeoff/landing/taxi area, selected
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
THE PLT REPORTED THAT THE ENGINE BEGAN TO LOSE PWR (RPM) DURING CRUISE AS IF IT WAS EXPERIENCING 'A BAD CASE OF CARB ICE'. THE PLT APPLIED CARB HEAT AFTER THE ENGINE LOST OVER 300 RPM. THE ENGINE CONTINUED TO LOSE PWR AND THE PLT ELECTED TO MAKE A PRECAUTIONARY LDG IN AN OPEN FIELD. THE FIELD WAS UNEVEN, AND THE PLT FOUND THAT HE COULD NOT BRAKE THE AIRPLANE TO A STOP BEFORE COLLIDING WITH A FENCE. TOTAL ELAPSED TIME FROM THE INITIAL PWR LOSS TO LDG WAS ONLY 2 TO 3 MINUTES, ACCORDING TO THE PLT. EXAM OF THE ENGINE REVEALED BLACK, SOOTY DEPOSITS ON THE FIRING ENDS OF THE SPARK PLUGS. ACCORDING TO ICING PROBABILITY CURVES, CONDITIONS WERE FAVORABLE FOR THE FORMATION OF MODERATE ICING AT CRUISE PWR. THE AIRPLANE WAS STC'D TO OPERATE ON AUTOGAS, AND WAS FUELED WITH A MIX OF 100LL AVGAS AND AUTO GAS.
Probable cause
THE PILOT DELAYED IN APPLYING CARBURETOR HEAT AFTER THE ENGINE BEGAN TO LOSE POWER, AND HIS SELECTION OF UNSUITABLE TERRAIN FOR A PRECAUTIONARY-LANDING SITE.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record ATL89LA118
- Event ID
- 20001213X27845
- Case number
- ATL89LA118
- 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: b58be2d299ee158f03d8569115f8fd2fac680a8cff6bc997815835c519171ee9; retrieved 2026-09-23T07:45:57.725Z.