19991222038469I

Incident

FAA incident report · Cessna 650 · Portland, OR · December 22, 1999

Date
December 22, 1999 · 16:15 local
Place
Portland, OR
Airport
Portland International
Phase of flight
Normal Cruise
Operating rules
General operating rules (Part 91)
Aircraft
N3184Z
Reported as
Cessna 650
Reported engine
Garrett TFE731*
People aboard
5
Fatal injuries
0

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.

Aircraft enroute fron ontario, CA to seattle, WA. Pilot heard noise from right engine followed by a chip detecot light. Pilot reduced power to idle, noise and vibration contiued. Pilot shut down right engine at 4,300' and diverted to pdx. No emergency delclared. Engine teardown report form Garrett indicated a planetary gear failure. The planetary hears were badly damaged and the oil jet support had one of its supports brokenoff completely. Garrett noted in the report that the holding the oil jet support did not have lock washers on them when removed from the engine. The report also states that one planetary gear had a bearing whose inner race had lost the interference fit and floated loosely on the shaft. That particular gear had severly worn teeth whereas the other geara have worn areas on about one half of the teeeth face. Report closed. Engine TT7276.5

As the FAA filed it

AIRCRAFT ENROUTE FRON ONTARIO, CA TO SEATTLE, WA. PILOT HEARD NOISE FROM RIGHT ENGINE FOLLOWED BY A CHIP DETECOT LIGHT. PILOT REDUCED POWER TO IDLE, NOISE AND VIBRATION CONTIUED. PILOT SHUT DOWN RIGHT ENGINE AT 4,300' AND DIVERTED TO PDX. NO EMERGENCY DELCLARED. ENGINE TEARDOWN REPORT FORM GARRETT INDICATED A PLANETARY GEAR FAILURE. THE PLANETARY HEARS WERE BADLY DAMAGED AND THE OIL JET SUPPORT HAD ONE OF ITS SUPPORTS BROKENOFF COMPLETELY. GARRETT NOTED IN THE REPORT THAT THE HOLDING THE OIL JET SUPPORT DID NOT HAVE LOCK WASHERS ON THEM WHEN REMOVED FROM THE ENGINE. THE REPORT ALSO STATES THAT ONE PLANETARY GEAR HAD A BEARING WHOSE INNER RACE HAD LOST THE INTERFERENCE FIT AND FLOATED LOOSELY ON THE SHAFT. THAT PARTICULAR GEAR HAD SEVERLY WORN TEETH WHEREAS THE OTHER GEARA HAVE WORN AREAS ON ABOUT ONE HALF OF THE TEEETH FACE. REPORT CLOSED. ENGINE TT7276.5