Service difficulty report · Rotor · Boeing 767332

Difficulty date
September 20, 2008
Submitted
September 26, 2008
Operation
Air carrier
Aircraft
N198DN
Make and model
Boeing 767332
Aircraft serial
28455
Aircraft time
51,731 hours, 7,620 cycles
Engine
Pwa PW4060
Engine time
47,796 hours, 7,076 cycles
Part
Rotor
Condition
Damaged
Location
Pma Drive
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

RT ENG EEC MSG, AUTO THROTTLES INOP, RT CTR FUEL PUMP, NO RT ENG N2 DISPLAY. ALL OCCURRED INFLT EN ROUTE TO CVG. FOUND PMA ROTOR DAMAGED DUE TO DRIVE ASSY FAILURE. BEARING PIECES MISSING AND PRESUMED TO HAVE ENTERED THE GEARBOX WHEN BEARING FAILED. METAL ON THE MCD. WILL CHANGE ENG TO FACILITATE GEARBOX REPLACEMENT.