19960429046099A

Accident · Destroyed

FAA accident report · Cessna 421 · Bernard, IA · April 29, 1996

Date
April 29, 1996 · 15:15 local
Place
Bernard, IA
Phase of flight
Normal Cruise
Operating rules
Air taxi and commuter (Part 135)
Operator
RK9A
Damage
Destroyed
Aircraft
N341DA
NTSB investigation
NTSBCHI96FA146
Reported as
Cessna 421
Reported engine
Continental GTSIO520D
People aboard
3
Fatal injuries
3
Pilot’s flight hours
6,100 total

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

(.4)During flight, the pilot reported shutting down the left engine due to a loss of oil pressure. He declared an emergency and diverted toward an alternate airport. However, while diverting, radar and radio contact were lost, and the airplane crashed. The wreckage path covered a distance of approximately 60 feet; the descent angle during impact was estimated to be about 45 degrees. Oil was found behind the left engine, on the left flap, on the bottom of the left horizontal stabilizer, and on the bottom of the fuselage. Also, fuel stains were seen in the grass around the airplane. No preimpact fire indications were found. The pilot had reported low oil pressure in the left engine before the accident flight, and purchased seven quarts of oil before departing. No indications of power at impact were seen on either engine or propeller. Numerous abnormalities existed with the left engine. No discrepancies were noted with the right engine. The farmer who found the wreckage reported that sleet was falling at the time of the accident. The pilot of another aircraft reported structural icing conditions.

As the FAA filed it

(.4)DURING FLIGHT, THE PILOT REPORTED SHUTTING DOWN THE LEFT ENGINE DUE TO A LOSS OF OIL PRESSURE. HE DECLARED AN EMERGENCY AND DIVERTED TOWARD AN ALTERNATE AIRPORT. HOWEVER, WHILE DIVERTING, RADAR AND RADIO CONTACT WERE LOST, AND THE AIRPLANE CRASHED. THE WRECKAGE PATH COVERED A DISTANCE OF APPROXIMATELY 60 FEET; THE DESCENT ANGLE DURING IMPACT WAS ESTIMATED TO BE ABOUT 45 DEGREES. OIL WAS FOUND BEHIND THE LEFT ENGINE, ON THE LEFT FLAP, ON THE BOTTOM OF THE LEFT HORIZONTAL STABILIZER, AND ON THE BOTTOM OF THE FUSELAGE. ALSO, FUEL STAINS WERE SEEN IN THE GRASS AROUND THE AIRPLANE. NO PREIMPACT FIRE INDICATIONS WERE FOUND. THE PILOT HAD REPORTED LOW OIL PRESSURE IN THE LEFT ENGINE BEFORE THE ACCIDENT FLIGHT, AND PURCHASED SEVEN QUARTS OF OIL BEFORE DEPARTING. NO INDICATIONS OF POWER AT IMPACT WERE SEEN ON EITHER ENGINE OR PROPELLER. NUMEROUS ABNORMALITIES EXISTED WITH THE LEFT ENGINE. NO DISCREPANCIES WERE NOTED WITH THE RIGHT ENGINE. THE FARMER WHO FOUND THE WRECKAGE REPORTED THAT SLEET WAS FALLING AT THE TIME OF THE ACCIDENT. THE PILOT OF ANOTHER AIRCRAFT REPORTED STRUCTURAL ICING CONDITIONS.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.