MIA98LA163 · Nanchang CJ-6A
Nanchang CJ-6A · Accident: partial loss of engine power (mechanical failure) en route
From 47J · Cheraw, SC to Pageland Airport (PYG)
Event
- NTSB case
- MIA98LA163
- 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
Nanchang CJ-6A
- Aircraft type
- Nanchang CJ-6
- 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
- N158T
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From 47J · Cheraw, SCTo Pageland Airport (PYG), Pageland, SC
- 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 (mechanical failure)
- 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
- Substantial
Cause areas
- Pilot in command › Stall, inadvertent
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
During cruise flight about 800 feet above ground level about 1.5 miles east of the destination airport, the pilot felt a vibration and observed an object protruding through the engine cowling. Unable to maintain altitude due to the loss of engine power, the pilot attempted a forced landing in a field. With the landing gear and speed brake extended, after clearing trees, the airplane stalled, impacted the ground nose low, then nosed over. Examination of the engine revealed that the No.9 cylinder was separated from the engine. Disassembly of the engine revealed that the No.9 cylinder piston was failed, the auxiliary rod end sleeve was missing, and the auxiliary rod piston pin hole was elongated. The maintenance records indicate that the engine had accumulated 425 hours since new at the time of failure.
Probable cause
Was the inadvertent stall of the airplane by the pilot-in-command while attempting to clear trees beneath the airplane during the descent for the forced landing. Contributing to the accident was the partial loss of engine power due to separation of the No.9 cylinder from the engine.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record MIA98LA163
- Event ID
- 20001211X10157
- Case number
- MIA98LA163
- 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: 4c8025ceff6e55caaaca9d59e6bc63d8ac0e33225a6f7ccac0c53cbcd9b82676; retrieved 2026-09-21T11:32:41.456Z.