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Sa= vvyNews for July 2013: Watch those CHT's on takeoff. This month's puzzler. M= eet analyst Joe Godfrey. And more...

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SavvyNews July 2013

A monthly newsletter full of tips and news for SavvyAnalysis users.

Mike Busch

Savvy's Founder and CEO

Mike's Corner

Watch those CHT's on Takeoff!

The =E2=80=9Cpuzzler=E2=80=9D char= t in last month=E2=80=99s newsletter showed a case where an engine was dest= royed by detonation when the pilot took off with a 50-50 mixture of 100LL an= d Jet A in the tanks. All CHTs rose rapidly after takeoff and within minutes= were all above redline. The pilot might have saved the engine from destruct= ion if he=E2=80=99d noticed the rapid CHT rise and taken immediate correctiv= e action.

It=E2=80=99s un= common to see all six cylinders to go into destructive detonation. Much more= common are cases where only one cylinder has a problem. But it=E2=80=99s st= ill critical to identify a CHT runaway, even if it=E2=80=99s just one jug do= ing the running, and take prompt action. It=E2=80=99s no fun to fly a six-cy= linder engine with only five making power, and even less fun to fly a four-c= ylinder engine with only three burning. The former will cause you to land at= the nearest airport and change your underwear; the latter will probably cau= se you to put the aircraft down in a field or on a road.

You never want t= o see any CHT rise above 400F=E2=80=A6EVER! If a CHT passes 400F and is risi= ng rapidly, that=E2=80=99s a thermal runaway and typically the cylinder has l= ess than a minute to live. If your engine monitor has a programmable CHT ala= rm, set it to go off at 400F or less. (I have mine set at 390F.) If your eng= ine monitor doesn=E2=80=99t have a programmable CHT alarm, consider replacin= g it=E2=80=94the lack of such an alarm is a deal-breaker as far as I=E2=80=99= m concerned.

When the CHT alarm goes off, take IMMEDIATE= action. Throttle back to idle to stop the thermal runaway dead in its track= s. Then throttle up to only the minimum power you need to sustain controlled= flight, land at the nearest airport, and have someone stick a borescope in t= he cylinder whose CHT ran away.

The engine you save may be your own.

Mike's AirVenture Presentations

I will be making 11 presentations on maintenance topics at AirVenture t= his year. Please plan to join me! It's always great to visit with our SavvyA= nalysis users. Browse the schedule.

"What's Going On Here?" puts you in the shoes of a Savvy Analyst. Can you figure out what this= chart is saying? Click on the thumbnail above to view the full chart on Sav= vyAnalysis.

Puzzler: What's Going On Here?

Again this month we challenge you t= o hone your analyst skills! This chart came from a client flying a T182 Skyl= ane powered by a Lyc TIO-540. "About 2:18 into the flight while in a slow cl= imb to 15,500 I noticed a rapid rise in TIT. I immediately reduced MAP and i= ncreased FF..." Can you figure out what is happening here? View t= he chart for this flight.

If you give up or want to compar= e your answer with our expert analysts, you can find the answer here.

Features and Fixes

New Features and Fixes

We invite our readers to follow us on T= witter and "like" us on Facebook. We plan to post news, observations and= announcements we think will interest our readers, such as interesting engin= e monitor data from our clients, new platform features, and Mike's upcoming w= ebinars, articles and presentations.

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Joe Godfrey

SavvyAnalysis data analyst

Meet the Analyst

SavvyMx clients will recognize the= familiar signature "Joe" on analysis reports. Joe Godfrey is the SavvyAnaly= sis Engine Monitor Data Analyst who presently has primary responsibility for= SavvyMx clients.

Joe is a multitalented individual w= hose primary loves are music, writing, aviation, and his wife Susan (not nec= essarily in that order). When he's not flying or swinging wrenches on his 19= 74 Bellanca Super Viking or writing articles for a wide range of aviation pu= blications (AVweb, IFR Magazine, Aviation Consumer, Twin & Turbine, etc.= ), he's composing or directing or performing music for films, broadcast and c= orporate media, and advertising. Joe played stand-up bass in the 2003 mockum= entary movie "A Mighty WInd" and has composed thousands of tracks for radio a= nd TV commercials. Rumor has it that whenever you hear the "I wish I was an O= scar Meyer wiener" jingle, Joe gets a royalty.

Joe is an instr= ument-rated private pilot who lives just north of San Diego, Calif. He bases= his Viking at Palomar Airport (KCRQ), and does most of his own maintenance.= He's a former director of Angel Flight West, the non-profit public-benefit f= lying organization that facilitates transportation of patients who need spec= ialized medical treatment in volunteer private airplanes. Joe is a computer g= eek (like the rest of us) and seems to love the challenge of making se= nse of the data our SavvyMx clients send him even when it's a real head-scra= tcher that has the rest of us stumped.

Joe is the only= member of the Savvy technical team who is happily married to Susan, has pla= yed with Dizzy Gillespie, logged time with Ella Fitzgerald, and conducted th= e London Symphony. He's a true renaissance man, and we're lucky to have him.=

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SavvyMx Update

SavvyAnalysis Pro clients sometimes ask us to help them with engine= issues that go beyond what we can glean from analyzing the engine data alon= e. We do our best to point them in the right direction. But a comprehensive p= rogram of engine condition monitoring and maintenance also requires oil anal= ysis, borescope analysis, and sometimes just plain visual inspection. Client= s of SavvyMx, our full maintenance management service benefit from our compr= ehensive management of both engine and airframe maintenance.

SavvyAnalysis Pro clients who upgrade to SavvyMx full maintenance m= anagement within 6 months of the start of their subscriptions are entitled t= o a full refund of their SavvyAnalysis Pro fee. And because we usually save o= ur SavvyMx clients many times their annual fee in reduced maintenance costs,= we think that's a pretty good deal. Find out more about SavvyMx.

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