ATL04FA051 · Cessna 414
Saunders Advisory Group Cessna 414 · Accident: partial loss of engine power (non-mechanical) while maneuvering
From John Glenn Columbus International Airport (CMH) to Greeneville Municipal Airport (GCY)
Event
- NTSB case
- ATL04FA051
- 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
- 4 · 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
- Instrument Meteorological Cond
Cessna 414
- Aircraft type
- Cessna 414
- 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
- N1592T
- Operator
- Saunders Advisory Group
- Onboard fatalities
- Unknown
- Route
- From John Glenn Columbus International Airport (CMH), Columbus, OHTo Greeneville Municipal Airport (GCY), Greeneville, TN
- 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
- Maneuvering
- 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)
- Also codedOther events the NTSB coded in the sequence, such as a wire strike after a loss of power. Flight Findings uses them for its kinds of event. Glossary
- Stall
- 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
- Pilot in command › Airspeed(vso), not maintained
Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.
NTSB narrative
The pilot was on a circling approach for landing in instrument icing conditions. The landing gear were extended and the flaps were lowered to15 degrees. The alternate air induction system was not activated. The surviving passenger stated when the airplane came out of the clouds and the airplane started to buffet and shake. The pilot was heard to state on the UNICOM frequency by the fixed base operator and a lineman, "Emergency engine ice." The airplane was observed to make a 60-degree angle of bank and collided with trees and terrain. The Pilot's Operating Handbook states the airplane will stall at 129 miles per hour with the landing gear and flaps down at 15-degrees. The maximum landing weight for the Cessna 414 is 6,430 pounds. The total aircraft weight at the crash site was 6,568.52 pounds. Witnesses who knew the pilot stated the pilot had flown one other known flight in icing conditions before the accident flight.
Probable cause
The pilot's failure to maintain airspeed while maneuvering in icing conditions on a circling approach for landing resulting in an inadvertent stall and collision with trees and terrain. A factor in the accident was a partial loss of engine power due to the pilot's failure to activate the alternate induction air system, and exceeding the maximum landing weight of the airplane.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record ATL04FA051
- Event ID
- 20041020X01663
- Case number
- ATL04FA051
- 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, coordinates. 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: daac9094089019edf4ee0fe91d9682ece082fcc3b8f89422c3d5a623d7e2d559; retrieved 2026-09-20T18:43:29.887Z.