Jim and Roger's most excellent adventure!

Jim Barker — Mon, 06 Feb 2012 04:52:00 GMT

Today: Feb 5th 2012, the 1st "ride-a-long" work trip with a COPA member.....Florida......25-ish aircraft, 23 days...one wedding....only 4500 miles....

I have to pick Roger (Whittier SR 22 s/n 0009) up in St Louis....but I have to get out an aircraft this morning....and leave by 1000 hrs Central to reach Roger's flight....

Dave picks up his SR22...I go home, pack clothes and blast off around 1050...in the van....600 miles to go!

The drive was uneventful.....except I thought the headlight on the left side was a little dim......

I arrived with 30 mins to spare at the cell phone lot, checked the left bulb, sure enough....in-flight failure.

Roger text's me..Southwest is early! great! I find him on the curb, satchel in hand, ready for work....

Hotel now, will start bright and early on a 22T...

Picture of Roger tomorrow......

The Sensing of your sensors sensitivity....?

Jim Barker — Thu, 09 Jul 2009 14:23:00 GMT

While traveling around offering my services to wonderful cirrus owners I have once again a good story to tell and hopefully we can all benefit. This one starts with a prop balance. I traveled to the clients home base and performed the routine service. We calculated the balance down to the 'gazinth' of a gram and I proceded on my way home. Several days later I received a phone call, the client reported about his last flight. I wouldn't say this was an eventful flight but it wasn't "eventless". On climb out the MFD was indicating high EGT and CHT temperatures on the #6 cylinder, he landed and had maintenance examine the problem. ( Discovering a cracked fine wire spark plug). I asked him to also send me the Emax download.(see below figure 1). Here is what the pilot of the SR-20 had to say and I quote " I would have pulled back power much sooner, however due to the history of erratic indications I second guessed the situation and delayed my first instinct."

The flight in question...with calculated peak temps for the #6 cylinder...note the #5 is also climbing....

Calculated probable peak CHT values

Remember my New Years Eve flight in Duluth? The pilot did not believe his instrumentation...(and with good cause)...sensor connectors have been shown unreliable.... to the point of pilots discrediting REAL PROBLEMS.

When you don't trust the data presented, make the system reliable....act on the results as "true" until proven "false"

Next ....what is happening to the cylinder after the high temp event?

What's shakin'?

Jim and Roger's most excellent adventure!

The Sensing of your sensors sensitivity....?