ATL06LA028 · Cessna 177-RG
Cessna 177-RG · Accident: total loss of engine power (mechanical failure) en route
From 4A7 · Hampton, GA to an unrecorded destination
Event
- NTSB case
- ATL06LA028
- 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
- 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 177-RG
- Aircraft type
- Cessna 177
- 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
- N53257
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From 4A7 · Hampton, 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
- Total loss of engine power (mechanical failure)
- 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
- Engine assembly, bearing › Failure, total
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 in cruise flight at 2,000 feet AGL. The engine did not appear to be producing full power. The pilot reversed his course back towards the departure airport. The engine oil pressure decreased to zero and the engine lost power. The pilot made an emergency landing to none suitable terrain, and the airplane received substantial damage on the landing roll out. The engine was disassembled. The No.1 cylinder was removed and the No.1 connecting rod was bent and separated from the crankshaft journal. The No.1 connecting rod, piston, and oil suction debris were forwarded to the NTSB Materials Laboratory for further examination. The examination revealed a failure of the No.1 connecting rod bearing.
Probable cause
The total loss of engine power due to failure of the No.1 connecting rod bearing and separation of the No. 1 connecting rod.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record ATL06LA028
- Event ID
- 20060105X00013
- Case number
- ATL06LA028
- 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: 1067e22c1f8fac9bfe26c9143f944c79cdfd8a34f1f12e291ba752b3e8aa962a; retrieved 2026-09-21T09:01:03.148Z.