Good to hear you are about ready for that
first flight, Bobby.
Glad to hear you paid attention to the safety
(chip detector) – while false alarms can be irritating, much better to
sort out on the ground!
Looking forward to your first flight
report.
Ed
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of Bobby J. Hughes
Sent: Friday, April 17, 2009 10:41
PM
To: Rotary
motors in aircraft
Subject: [FlyRotary] It's an
airplane. \ Gearbox Chip Detector
DAR inspected the plane on Thursday and issued Phase 1
restrictions. After closing the covers I taxied out for more tuning. My
chip detector went off so back to the hanger. I pulled the magnetic
plug and could see one small chip. It was a little smaller than a pin
head. Since it was the third warning in 18 hours I decided to dissemble the
gearbox and take a look. Much to my surprise I couldn't find any problem
with the internals. Bearings, gears and the spline all looked perfect. I did
find extra RTV in the machined pocket by one of the oil drain holes.
Fortunately it had adhered to the aluminum and was not blocking the oil
exit. The chip detector is located in a machined aluminum block
between the gearbox oil exits and the oil pan. The block also has a temperature
sensor. The detector may be overly sensitive but I am confident it will provide
advanced warning of a major problem.
RV10 Supercharged Renesis.
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