Service difficulty report · Bearing · Diamon DA20A1

Difficulty date
June 1, 2000
Submitted
January 22, 2001
Operation
General aviation
Make and model
Diamon DA20A1
Aircraft time
4,677 hours
Engine
Rotax ROTAX912
Part
Bearing
Condition
Making Metal
Location
Engine Main
Part time
1,790 hours
Component
Crankshaft · Rotax · 912F3
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

(CAN) UPON REGULAR 200 HR ON CONDITION INSP, STEEL & ALUMINUM, BABBITT PARTICLES FOUND IN OIL & FILTER. PISTONS & CYLINDERS PULLED & INSP. NO EVIDENCE OF PART FAILURE: GEARBOX REMOVED, SLIGHT FRETTING OF VALLEYS ON DOGS - ADJUSTED FRICTION. ENGINE RE-ASSEMBLED & FLOWN DUAL LCL ONLY FOR 5 HRS ON ADVICE OF DIRECTOR OF MAINT OF ROTAX CANADA. AFTER 5 HRS FLT A/C ENGINE INSP METAL. MOSTLY BABBITT & ALUMINUM FOUND IN OIL & OIL FILTER. ENGINE REMVD & SENT TO ROTAX IN VERNON. UPON THEIR INSP CRANKSHAFT MAIN CTR BEARING & CRANKSHAFT MAIN CTR SURFACE WHERE WEARING, EXCEPT FOR METAL. FOUND DURING INSP, ENGINE RAN & TESTED WITHIN ALL SPECIFIED PARAMETERS. OVERHAULED ENGINE WILL BE INSTALLED.

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