MIA90LA056 · Cessna 404
Cessna 404 · Accident: total loss of engine power (non-mechanical) on approach
From Wilmington Airport (ILG) to Fort Lauderdale Hollywood International Airport (FLL)
Event
- NTSB case
- MIA90LA056
- 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
Cessna 404
- Aircraft type
- Cessna 404
- 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
- N335GP
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Wilmington Airport (ILG), Wilmington, DETo Fort Lauderdale Hollywood International Airport (FLL), Fort Lauderdale, FL
- 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
- Approach
- 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 (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
- Ram/induction air › Disconnected
- Reason for occurrence undetermined
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
WHILE LEVEL AFTER DESCENDING, THE RT ENG QUIT. PLT FEATHERED THE PROP, ADVISED ATC, & WAS DIVERTING TO ALTERNATE WHEN LT ENG QUIT. HE POSITIONED THE LT ENG BOOST PUMP TO HIGH & LOW WITH NEGATIVE RESULTS, BUT DID NOT FEATHER THE PROP. POSITION OF BOOST PUMPS, WHEN ENGS QUIT, WAS NOT DETERMINED. ACFT LANDED ON OVERPASS THAT WAS UNDER CONSTRUCTION. THERE WAS FUEL LEAKAGE AFTER ACCIDENT DUE TO ACFT DAMAGE. FUEL QUANTITY WAS SUFFICIENT. EXAM OF ACFT REVEALED RT ENG FLEXIBLE DUCT FROM TURBOCHARGER TO PLENUM CHAMBER SEPARATED DUE TO LOOSE CLAMP. HOSE WAS INSTALLED & CLUB PROP INSTALLED FOR EACH ENG RUN. BOTH ENGS OPERATED NORMALLY. INDUCTION AIR HOSE WAS PULLED DURING RT ENG RUN. ENG RAN ROUGH DUE TO EXCESSIVE RICH MIXTURE. NO DETERMINATION COULD BE MADE FOR THE REASON OF THE LEFT ENG POWER LOSS.
Probable cause
LOSS OF POWER IN THE RIGHT ENGINE DUE TO A DISCONNECTED DUCT BETWEEN THE TURBOCHARGER AND THE PLENUM CHAMBER. THE REASON FOR THE LOSS OF POWER IN THE LEFT ENGINE WAS NOT DETERMINED.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record MIA90LA056
- Event ID
- 20001212X22458
- Case number
- MIA90LA056
- 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: 4f3cb0d16967812e4b9564710c0565f2e347b09191ee74ee60088cc73767082a; retrieved 2026-09-21T23:57:52.648Z.