Service difficulty report · Gear · Swrngn SA227AC

Difficulty date
November 4, 2000
Submitted
January 19, 2001
Operation
Air carrier
Make and model
Swrngn SA227AC
Aircraft time
22,187 hours
Engine
Garrtt TPE33111U
Propeller
Rotol R321482F8
Part
Gear
Part number
31025863
Condition
Making Metal
Location
Reduction G/B
Stage of operation
IN
How discovered
O
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

(CAN) A CHIP DETECTOR LIGHT ILLUMINATED & INSP OF DETECTOR SHOWED SLIVER OF METAL. SUBSEQUENT OIL FILTER CHANGES / INSPECTIONS, GROUND RUNS & FILTER INSPECTION AGAIN INDICATED METAL CONTAMINATION IN OIL.. ENGINE REMOVED FOR OVERHAUL & RETURNED TO THE MFG. ENGINE OPERATED ONLY 12.1 HRS SINCE OVERHAUL BY ALLIED SIGNAL - HONEYWELL.2000-12-07TC: FOLLOW-UP REPORT EXPECTED FROM OPERATOR AFTER TEARDOWN. 2000-12-14TC: FOLLOW UP REPORT IS RESULT OF ENGINE CONDITION REPORT RECEIVED FROM ENGINE MFG FOLLOWING TEARDOWN INVEST. THE PLANETARY REDUCTION GEAR ASSY EXHIBITED PITTING ON TEETH. ID OF GEAR (OUTER RACE OF ROLLER BEARING) SHOWED HEAVY SCORING, WITH EVIDENCE OF HEAVY SKIDDING & HEAT GENERATION