May - Cessna

DIRECTC I T A T I O NapproachMAY 2012IN THIS ISSUE:Confidence: Around the World in a MustangAlternate Cabin Cooling Tips without using Max CoolSovereign Cooling Tips for Hot Weather MonthsConferences, Updates and more

In THISIssue:1New & IMPROVEDALTERNATE CABIN COOLING TIPS WITHOUTUSING MAX COOL (750)2-3SPRING CLEANING TIPS FOR EVAPORATOR ANDCOMPRESSOR SYSTEMS (500, 510, 525, 525A,525B, 525C, 550, S550, 560 and 560XL)6PRODUCT SPOTLIGHT: CONCORDE BATTERIESARE A TURN-ON (ALL MODELS EXCEPT 680)12iPAD APP FOR CLCalc WEIGHT AND BALANCENOW AVAILABLE (510, 525, 525A, 525B, 525C,550, S550, 560, 680 AND 750)4-51617In Every ISSUECUSTOMER SPOTLIGHTASK THE EXPERTEVENTS CALENDAR313LATEST REVISED EDITION OF CMM RECOMMENDEDFOR ENVIRO PARTS (500, 525, 525A, 525B, 550,S550, 560, 560XL AND 650)15SOVEREIGN COOLING TIPS FOR HOT WEATHERMONTHS (680)15Technical INFOAFT PEDESTAL EEC DOWNLOADS NO-GO ONENCORE+ (560)7DIRTY HEAT EXCHANGERS CAN CAUSE COOLINGACM HEADACHES (500, 550, S550, 560, 560XL,650, 680 and 750)7HONEYWELL ISSUES SB FOR IMPROVED OIL LUBEPUMP (650)8-11SYNOPSIS OF SERVICE BULLETINS AND SERVICELETTERS RELEASED (ALL MODELS)FULL WINDOW TINT NOT RECOMMENDED (ALLMODELS)THE DIRECT APPROACH IS PUBLISHEDMONTHLY BY THE CESSNA CITATION CUSTOMERSERVICE ORGANIZATION. COMMENTS ANDSUGGESTIONS ARE WELCOMED.PLEASE ADDRESS YOUR COMMENTS TO LOUIS BROWN316-517-3501 lhbrown@cessna.textron.com

750, ATA: 21-00Alternate Cabin Cooling Tipswithout Using MAX COOLThe hot summer months are approaching and the challenge of keeping aircrew and passengerscomfortable will soon be experienced by many Citation X operators. The intent of this article is to provideoperators alternate procedures to cool the cockpit/cabin without using the APU BLEED AIR MAX COOL switchsetting.The performance and service-life of Air Cycle Machines (ACMs) have been known topics of discussion atseveral technical product discussions in the past.With the recommended steps provided below, operators may find cooling with the CKPT PAC and CAB PACselector knobs on the HIGH settings may be sufficient enough to cool the cockpit/cabin sufficiently. This wouldeliminate the need of placing the BLEED AIR switch located on the APU control panel to the MAX COOL positionwith the added bonus of reducing demand of the cooling system components.1. Make sure all cabin window shades are closed if the airplane is parked outside and not in use.2. Make sure the baggage door is closed before starting the Auxiliary Power Unit (APU).3. Make sure all WEMAC air outlets are fully open in the cockpit overhead panel and the PassengerService Units (PSUs) in the cabin.4. Start the APU. Refer to the approved Airplane Flight Manual (AFM).5. Close the cabin door.6. On the environmental panel, move the ISOL VALVE to the OPEN position.NOTE: This valve setting will allow both Environmental Control Units (ECUs) to operate from one air sourcewith the APU operating.7. On the APU control panel, move the BLEED AIR switch to the ON position.NOTE: This switch setting will send approximately 13 PPM air flow to both ECUs.8. On the environmental panel, turn the CKPT TEMP SEL and CABIN TEMP SEL selector knobs tothe COLD position.9. Monitor the current temperature settings, if more cooling is desired do the following step:a. On the environmental panel, turn the CKPT PAC and CAB PAC selector knobs to the HIGHposition.NOTE: These selector knob settings will send approximately 16 PPM air flow to both ECUs.NOTE: White PAC HI CKPT and PAC HI CAB CAS messages will now be displayed.10. Before starting engines, do the following steps:a. On the APU control panel, make sure the BLEED AIR switch is in the ON position.b. On the environmental panel, move the ISOL VALVE to the CLSD position.c. On the environmental panel, turn the CKPT PAC and CAB PAC selector knobs to the ONposition.Questions, please contact:Team X316-517-5650 (Direct)1-888-622-4789 (WATS)citationx@cessna.textron.compage 1www.citationservice.com

500, 510, 525, 525A, 525B, 525C, 550, S550, 560 and 560XL ATA: 21-50Spring Cleaning Tips for Evaporatorand Compressor SystemsSummer season is just around the corner. The air conditioning evaporator and compressor systems will soonbe working hard to keep aircrew and passengers comfortable. To make sure the air conditioning system isoperating to its potential, here are a few spring cleaning tips:Note: Cleanliness promotes longer life for any appliance. As air conditioning components are inspected, Cessnarecommends making an effort to clean each component when access is available.AccessInspectionCleaning1. Refer to the applicable maintenance manual to get access to the evaporator and compressor systemcomponents.2. Inspect evaporator coils for damage, leaks, wear and uniform spacing.3. Inspect any drive belts or pulleys for nicks, cracks or loose parts.4. Inspect any seals or shrouds for indication of leaks or cracks.5. Inspect compressor for leaks or excessive oil spray.6. Inspect the evaporator coils and receiver dryer plumbing for leaks or cracks.7. Inspect wiring for insulation damage.8. Inspect drive or blower motor(s) brushes (if applicable), bearings for cracks or loose parts.9. Refer to the vendor manual for any additional inspection criteria not mentioned above.10. Inspect air conditioning condenser, pylon ram air inlets, and tailcone exhausts for blockage.11. Inspect any baggage compartment air conditioning components, (if applicable).12. Make sure the evaporator coils are clean and clear of foreign matter that can restrict airflow oroptimum performance.13. Make sure the drive or blower motor, fan or blower assemblies are clean and clear of foreign matterthat can restrict airflow or optimum performance.14. Make sure the drain lines are clear of obstructions that can restrict airflow or optimum performance.15. Make sure that all inlet and outlet ducts or shrouds connected to the evaporator compressor are cleanand clear of foreign matter that can restrict airflow or optimum performance.16. Make sure the openings to cockpit or cabin temperature sensors are not blocked by carpeting orluggage items. (Some airplanes have filters that may need to be cleaned or replaced).17. Refer to the vendor manual for any additional cleaning criteria not mentioned above.Restore Removed Access Items18. Refer to the applicable maintenance manual to install items that were removed for access to theevaporator and compressor system component(s).System Operation19. Refer to the applicable maintenance manual to operate the air conditioning system in manual modewith warm ambient temperatures present.a. Driving the air conditioning system in full cold should cause the compressor to operate continuouslywithout cycling.Note: When all the procedures above have been performed and the air conditioning system is not cooling effectively,there may be additional troubleshooting steps that need to bePLEASE SEE NEXT PAGEconsidered.page 2

Customer SpotlightBusinessman pilot Doug Armstrong has flownCessna products for 20 years so he knows how dependablethey are. At the same time the Citation Mustangowner-driver, based on St. Croix in the U.S. Virgin Islands,is always looking for something out of the ordinary to do.“Recently I was able to sell one of my businesses andget some free time. I thought, I need to do somethingneat. I like the Mustang a lot, and I’d like to do reallyfun things,” says Armstrong. “I hit upon this idea andthought it would be great to be able to be say I’ve flownan airplane around the world.”Confidence: Around the World in aMustangSo he is taking his family on a 30,000-mile trek circumnavigating the globe with many fun stops along the way.The family headed out in early May from Cessna’s Orlando Citation Service Center, up the eastern coast of NorthAmerica to Goose Bay and Reykjavik to Europe.Then the family plans to head to the Middle East, Asia, along Russia’s eastern coast, down through Alaska and backto the States. He plans to wind up back at the Orlando Service Center for any deferred maintenance from the longjourney sometime in late July.A Family OutingArmstrong is being joined by his wife, Liz, and two daughters, Megan and Katy, for the first month of the trip andthen his 15-year-old son, Dillon, plans to join them in Dubai after his school is out. They’ll celebrate his wife’sbirthday in Istanbul and his daughter Katy’s sixth birthday in Ibiza, Spain. Megan is 13.The family’s more than 40 stops include many of the world’s famous cities – Prague, Marrakech, Malta, Istanbul,Dubai, Angkor Wat, Singapore, Bali, Hong Kong, possibly Shanghai, and Nagoya.“We actually land at Petropavlovsk for fuel. That’s the Russian base that Korean Air Lines 007 overflew and thenthey were shot down west of Sakhalin Island. We’re actually going to Sakhalin for fuel, too. It’s interesting how theworld changes,” Armstrong says.“During the Cold War, this was a super-secret place that you weren’t able to go to, and now it’s half deserted andyou can go there and buy fuel whenever you want to. So, I think that’s going to be neat.” With a route that comesnear Iran and Pakistan, Armstrong is glad to have the backing of the Cessna Customer Support team, which ismonitoring the family’s progress around the globe.Team Mustang, Service Centers Behind the Scenes“I started talking to guys with Team Mustang, and guys at the Service Centers, and pretty much everybody was like,wow,” he says. “I’ve got whole teams of people who are emailing me with suggestions of things I need to do, anddiscussions about what sort of maintenance ought to be done on the airplane before I leave. That goes above andbeyond the call of duty.”“I thought that was special. A lot of companies don’t have an organization where you’ve got people like that. You’rejust a problem for a lot of other support organizations,” he says. The Orlando Service Center has a team that madesure the annual and any required extra inspections were out of the way before the trip began.The flight is being arranged by Air Journey of Jupiter, Fla., which specializes in arranging pilot-owner-flownCaribbean tours, and also does more ambitious jaunts around the world. Armstrong and his family will be joined bya number of other airplane owners, including several other Cessna owners.page 4PLEASE SEE NEXT PAGE

---------------------------------------------------650------------------------------------------------Number: SB650-23-20-R2Type: OptionalTitle: Radio Management Unit (RM855) InstallationEffectivity: 650-0001 thru -7119Description: The Radio Management Unit (RMU) (RM850) is obsolete and will need to be replaced with the RMU(RM855). This optional service bulletin provides parts and instructions to replace the RM850 with the RM855.Revision 2 changes the compliance, allowing the replacement of a single RMU, but does not affect airplanes thathave previously complied with the service bulletin.---------------------------------------------------750------------------------------------------------Number: SB750-29-14-R1Type: MandatoryTitle: Engine Pylon Hydraulic Tube ImprovementEffectivity: 750-0039 thru -0306Description: The existing hydraulic tube can chafe the bleed air pylon tube heat shield. This mandatory servicebulletin provides parts and instructions to replace the existing hydraulic tube with a new one. Revision 1 makessome changes to accomplishment instructions, but does not affect airplanes that have previously complied withthis bulletin.Number: SB750-53-33Type: OptionalTitle: Ram Air Drip Tray ImprovementEffectivity: 750-0001 thru -0308 with ACSS TCAS 2000 InstalledDescription: The existing ram air drip tray can crack, allowing water to drip on components below. This optionalservice bulletin provides instructions to replace the existing drip tray with an improved new one. This bulletin canbe accomplished at the discretion of the owner.page 11www.citationservice.com

510, 525, 525A, 525B, 525C, 550, S550, 560, 680 and 750 ATA: 99-00iPad App for CLCalc Weight and BalanceNow AvailableCessna is pleased to announce the Citation Loading Calculator (CLCalc) for Weight and Balance (a componentof CESNAV) is now available in the iPad App Store.For current CESNAV subscribers:page 121. Make sure you have a valid CessnaSupport.com user id/password. To register, visit CessnaSupport.com website and click the “Customer Access” the “Register.”2. On your iPad, open the App Store.3. Search for “CLCalc.”4. Locate the CLCalc iPad app and install.5. Once CLCalc is installed, open the app and in the top right corner, click “SYNC”.IMPORTANT: At this point, you will be required to log in with your CessnaSupport.com user id/password. Youmust have an active CESNAV subscription.6. Once you log in, your airplane CLCalc Weight and Balance databases will download automatically.NOTE: The empty weight and moment reflect the date the database was created—often at the original aircraftdelivery. Please select the OPTIONS page in CLCalc to verify current and correct data.Cessna expects to release CPCalc and EOM apps within the next few weeks. To view the presentation on thistopic from the 2012 Citation Customer Conference, do the following:1. Open the Customer Access link at http://www.cessna.com.2. On the Customer Access page, log in using your user id and password.3. In the Customer Service Information box, click on the CESNAV iPad link.For subscription questions, please contact:Cessna Customer Care316-517-5800Customercare@cessna.textron.comOr:For technical questions, please contact:Pilot Services316-517-7717

500, 525, 525A, 525B, 550, S550, 560, 560XL and 650 ATA: 21-10Latest Revised Edition of CMM Recommendedfor Enviro PartsCitation Customer Service strongly recommends Citation operators refer to the latest revision of the EnviroAir Conditioning Component Maintenance Manual (CMM) when performing inspections, maintenance orordering parts.The air conditioning manufacturer recently revised most of their manuals in the late summer months of lastyear. One notable change in the revised manual includes an updated vapor cycle compressor motor brushreplacement part number for a series of compressor motors.Earlier versions of the CMMs had erroneously listed the P/N 1251171-6 brush as the replacement part onseveral Citations, which is used on the Model 525A and 525B aircraft only. (All other Citations use the P/N1251171 as the base number for ordering the part.) The latest revisions of the CMMs have corrected this issue.Note: Cessna recently released service letter CIL-21-01, “Compressor Motor Brush Life Limit,” informingoperators of upcoming maintenance manual changes for inspection and replacement of compressor motorbrushes. Operators can also refer to additional information provided in web article, “A/C Compressor MotorBrush AD in Work,” posted November 21, 2011, on CessnaSupport.com.Questions, please contact:Customer Service Hot Line1-800-835-4090316-517-6261 (International)hotline@cessna.textron.compage 13www.citationservice.com

THE CITATION EXPERIENCEYou and your Citation Takin’ Care of Business!“TCB” is the very reason Citations are built.And ever since the first lift off, owners have put their own uniquebusiness stamp on their Citations. Now, we’re asking you toshow us the business side of your aircraft.Share pictures of your business family with the entire Citation family. Show us yourcolleagues, pilots, family members, or whoever getting down to business in yourCitation. Take us into your airborne boardroom. Let us celebrate the deal-sealinghandshake with you.So, show us the business side of your aircraft by going to www.citationexperience.com.And help the Citation Experience TCB!Questions? Comments? Scheduling?Call 877-360-EXPERIENCE (877-360-3973)International: 316-517-5800page 14

680, ATA: 21-50Sovereign Cooling Tips for HotWeather MonthsMany of our operators have told us that the Citation Sovereign cabin air does not cool enough during warmweather months. Team Sovereign has some tips that can help.Discretionary Service Bulletin 680-21-02-R1In 2010, Cessna released discretionary Service Bulletin 680-21-02-R1, “Bleed Air Flow Improvement affectingaircraft 680-0001 thru -0290. The modification of the environmental control system markedly increases theheating and cooling capacity for the cockpit/cabin. Team Sovereign highly recommends operators considerincorporating this bulletin on their airplane.Keep the Cabin DarkIf the airplane is parked on the ramp outside the cabin window shades should be closed. Reducing the amountof solar energy entering the cabin will reduce the interior temperatures before dispatch. Another item, called aShield, P/N CJMD310-002 can be purchased through CSP&P to install inside the cockpit windshields also.Operate the Auxiliary Power Unit (APU) with the Cabin Door ClosedWhen the APU is operated to cool the cockpit/cabin air, make sure the cabin door is closed. Operating the APUwith the MAX COOL switch in the ON position and the cabin door closed is the most efficient method to cool thecockpit/cabin air. However, it is also important to remember an operating APU in this configuration will slightlyincrease cabin pressure. Make sure the cabin pressure is equalized by opening a cockpit side window beforeopening the cabin door for a passenger/flight crew entry/exit.Questions, please contact:Team Sovereign316-517-1695 (Direct)1-877-683-7344 (WATS)team680@cessna.textron.comAll Models, ATA: 56-00Full Window Tint NotRecommendedCessna does not recommend the use of sun visor material (self-adhesion) to fully cover the windows inthe cabin or flight compartment. Cessna previously addressed a question about such material on windowsin the Ask the Expert section of the Sept. 2010 Direct Approach issue.The sun visor material can reflect the sun’s radiation back through windows in a manner similar to a solarmirror. The superheated window and surrounding interior structure can melt, creating a potential for fire.It should also be noted that any sun visor material installed on any of the flight compartment windows couldhinder optimum flight crew visibility for safe operations on the ground or in the air.Note: In the past, Cessna has issued optional service bulletins affecting the Citation II and S550 fleet, instructingoperators to install tinted window material on a small portion of the lower side windows of the cockpit sidewindow and foul weather windows. The tinted window material was added due to a landing light relocation.Questions, please contact:Customer Service Hot Line1-800-835-4090316-517-6261 (International)hotline@cessna.textron.compage 15www.citationservice.com

Ask The EXPERTSEXPERTS FROM THE CESSNA SUPPORT TEAMSHARE ADVICE AND SHED LIGHTANSWERSQuestionCan the USB port on the Honeywell DL-950 Data Loader be used to charge devices such as a cellphone or I-pad?AnswerHoneywell does not recommend this. There is a possibility that the device could draw too muchcurrent and damage the internal circuitry of the data loader.How Tosubmit comments andAsk The EXPERTSTHE DIRECT APPROACH IS PUBLISHED MONTHLY BY THECESSNA CITATION CUSTOMER SERVICE ORGANIZATION.ASK THE EXPERTS AT:asktheexpert@cessna.textron.comOur experts will do their best to provide answers to your questions.Even if your question is not posted in the publication, you willreceive an e-mailed answer.page 16

WWW.FLIGHTSAFETY.COMCONTACT US AT:800-491-9796OR 316-220-3250Due to the large number of different trainingcourses available, it is not possible to list themall here. Visit WWW.FLIGHTSAFETY.COM foradditional class information or to enroll.2ND QUARTER - 2012Citation X (750) InitialCitation X (750) RecurrentCitation Sovereign (680) InitialCitation Sovereign (680) RecurrentCitation XLS/XLS+ (560) InitialCitation XLS/XLS+ (560) RecurrentCitation Encore/Encore+ (560) InitialCitation Encore/Encore+ (560) RecurrentCitationJet 2+ (525A) InitialCitationJet 2+ (525A) RecurrentCitationJet 3 (525B) InitialCitationJet 3 (525B) RecurrentCitationJet 4 (525C) InitialCitationJet 4 (525C) RecurrentTRAININGJune 5June 4, 8, 12, 18 and 25June 5June 4, 8, 22 and 25June 4June 4, 7, 21, 25 and 28June 5/12 for Encore+June 4, 11, 18, 21 and 25June 11June 4, 7, 11, 14June 4June 4, 7, 21 and 25June 4June 20 and 27Events CALENDARHERE’S EVERYTHING YOU SHOULD BEIN THE KNOW ABOUT!WORLD’S LEADING AVIATION TRAINING COMPANYCitation Mustang (510) Initial - June 12Citation Mustang (510) Recurrent - June 4, 13, 18 and 27NBAA Regional Forum - Teterboro, NJJune 7, 2012EAA/Oshkosh - Oshkosh, WIJuly 23 - 29, 2012THANKS for taking time to read our publication! We appreciate your readershipand will do our best to continue to present you with the latest Citation relatednews, products & happenings throughout the year.page 17www.citationservice.com

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