MIA86FA033 · North American T-28A
North American T-28A · Accident: partial loss of engine power (mechanical failure) during initial climb
From Palm Beach County Park Airport (LNA) to an unrecorded destination
Event
- NTSB case
- MIA86FA033
- 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
- 1 · 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
North American T-28A
- Aircraft type
- North American T-28
- 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
- N9867C
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Palm Beach County Park Airport (LNA), Lantana, FLTo 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
- Initial climb
- 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)
- 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
- Ignition system, ignition harness › Incorrect
- Ignition system, spark plug › Arcing
- Pilot in command › Aircraft preflight, inadequate
- Pilot in command › Judgment, improper
- Pilot in command › Maintenance, installation, improper
- Pilot in command › Maintenance, service of aircraft/equipment, improper
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
THE PILOT/MECHANIC HAD RECENTLY RE-INSTALLED A REBUILT ENGINE IN THE AIRCRAFT AND PERFORMED A VERY SHORT RUN-UP PRIOR TO TAKEOFF. WITNESSES STATED THE AIRCRAFT ENGINE MADE POPPING NOISES AND WAS BELCHING BLACK SMOKE DURING THE TAKEOFF ROLL. THE AIRCRAFT BECAME AIRBORNE AND MUSHED AROUND A LEFT 180 DEGREE TURN BEFORE CRASHING IN A SWAMPY AREA AT THE AIRPORT EDGE. EXAMINATION OF THE IGNITION HARNESS AND SPARK PLUGS REVEALED THAT A 7 MM HARNESS WAS INSTALLED UTILIZING 5 MM SPARKPLUG CONNECTORS. SIX SPARKPLUGS EXHIBITED EVIDENCE OF FLASHOVER IN THE SPARKPLUG CONNECTOR WELLS. THIS CAUSED A PARTIAL POWER LOSS OF THE TOTAL REQUIRED POWER AVAILABLE AND NECESSARY FOR FLIGHT.
Verbatim NTSB analysis from the NTSB dataset
Sources
NTSB record MIA86FA033
- Event ID
- 20001214X38277
- Case number
- MIA86FA033
- 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: ff0ca026f2e7552cfb2042831ecb508a1440b5065eab55ea1eb49c5d342e88a2; retrieved 2026-09-21T04:45:33.468Z.