Cessna 404 N335GP

Summary

On 17 January 1990 at about 05:09 local time, a Cessna 404 registered N335GP was involved in an accident near Boca Raton, Florida, United States. 3 people were on board and 3 had minor injuries. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

17 January 1990 at 05:09

Classification

Accident

Location

Boca Raton, Florida, United States

Nearest airport

Boca Raton (BCT)

Coordinates

26.3397, -80.0801

Aircraft

Cessna 404

Registration

N335GP

Category

Airplane

Engines

2

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Ferry

Phase of flight

Not recorded

Route

Wilmington → Fort Lauderdale

Aircraft damage

Substantial

Weather

VMC

Light

Night/Bright

NTSB number

MIA90LA056

3 people had minor injuries.

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.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full 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.

Quoted verbatim from the NTSB record.