January 2005
Archive Page
2005 Citation Customer Conference
New CESPLAN Services
MMEL/Operational Maintenance
Soverign Zonal Inspection
Model 650 Skid Rail Installation Tips
Hydraulic Mule Part Number Correction
Pylon Firewall Models 525 and 525A
Mode S and Graound Surveillance Radar
Access your Soverign Info on CessnaSupport.com
TWAS Service Bulletins
2005 Citation Customer Conference

The 2005 Citation Customer Conference will be held at the Century II Convention Center in Wichita, Kansas, on May 2, 3 and 4.

How do you Submit comments?
The Direct Approach is published monthly by the Cessna Citation Service Organization. Comments and suggestions are welcomed.

Please address your comments to
Shane McCormick

Since last years conference there have been many new and exciting changes in the Customer Support business unit. New and improved Service Centers have opened, new service products have been created, and we have increased support with our Field Service Representatives and Customer Support Engineers.

While this year’s conference will focus on many of these new services available to you for the support of your Citation, many of the standard conference activities will be scheduled to ensure you are aware of the latest technical and product information. Technical sessions will be presented on all models from the 500 through Citation X and Sovereign. Still other sessions will cover special interest topics. As in the past, a supplier reception will kick off the 3-day event.

For your convenience, online registration will be required for each person attending the conference. To register online, please visit http://www.cessnasupport.com
and follow the link for “Citation Customer Conference Information.” Fill out the registration form and a confirmation will be sent to the email address used on the registration form.

A conference information and name badge packet will be provided when you arrive at the conference. For your convenience at arrival, a registration center will be available in the Hyatt/Century II complex. Registration center hours and locations are as follows:

Sunday, May 1 2005, 12:00 p.m. - 5:00 p.m. (Hyatt)
Monday, May 2 2005, 8:00 a.m. - 1:00 p.m. (Hyatt)
Monday, May 2 2005, 3:00 p.m. – 8:00 p.m. (Expo Hall Atrium, in Century II)
Tuesday, May 3 & 4, 2005, 8:00 a.m. – 5:00 p.m. (Century II)

If you need further assistance, please logon to cessnasupport.com or contact us at 1‑800‑835‑4090, ext. 76217 or 316‑517‑6217. We look forward to seeing you in Wichita on May 2 through May 4, 2005.

Please look for more information regarding the conference in the upcoming months on the website and in the Direct Approach.

Three New CESPLAN Services For You

Our Maintenance Engineering department is pleased to announce three new programs to optimize your scheduled maintenance downtime to improve operational availability and maintenance inspection convenience. All three programs are available for all models.

CESPLAN – Custom Maintenance Planning Service

A CESPLAN is an individualized airplane inspection program developed for you by Cessna. It is based upon the maintenance requirements found in Chapter 4 and Chapter 5 of the Aircraft Maintenance Manual, and the unique operational profile and needs you have.

The benefits CESPLAN can bring to you include:
  • Reducing the frequency of trips to Authorized Service Facilities
  • Reducing scheduled maintenance down time to best support your flight schedules
  • Fully supported by, and integrated with CESCOM online
  • Meets the requirements of 14 CFR Part 91.409 (f)(3) as a manufacturer’s recommended inspection program
  • We develop the program for you, leaving you to concentrate on your flight operation.

    CESPLAN – Maintenance Alignment Service

    This service offers a written statement that Cessna has no objections with a one-time grace period for scheduled inspections found in Chapter 5 of the Aircraft Maintenance Manual. This service is provided when you request an extension beyond the inspection limitations given in Chapter 5. The CESPLAN Maintenance Alignment Service is a short-term benefit allowing you to continue flying your aircraft while recapturing down time efficiency.

    CESPLAN Maintenance Transition Service

    The CESPLAN Maintenance Transition Service offers written steps to change from one maintenance plan to another. Some customers find a need to make a change mid-way through the Maintenance Manual cycle. Rather than complete a Phase 1 thru 5 and start a new plan, the Maintenance Transition Service can sequence the transition between plans at a lower cost. You can add these great services for the following costs:

  • Maintenance Planning Service fee is $2000
  • Maintenance Alignment fees range from $1,000 to $2000
  • Maintenance Transition fee is $2000
  • If you have any questions on this issue, please contact:

    Jerry Morris

    MMEL/Operational & Maintenance Procedures Guides (All Models)

    Condition Description:

    The FAA publishes Master Minimum Equipment Lists for all Citations. The FAA requires operational procedures, or maintenance procedures, for some of the relief items. We publish recommended procedures to assist you in meeting this requirement. The procedures are contained in the MMEL Operational & Maintenance Procedures Guide. We publish a Guide for each FAA MMEL.


    MMEL Release Date
    O&M Procedures Guide
    O&M Release Date
    Revision 7
    Revision 0
    Revision 4
    Revision 6
    Sent to Tech Pubs
    Revision 4

    * Next revision has been posted on the FAA MMEL website as a draft.

    • 680 O&M Guide has been developed, reviewed by Engineering, and sent to Tech Pubs to be printed. Draft copy available via e-mail by contacting Rob Below
    • 525 O&M Guide Revision 3 (CitationJet and CJ1) has been sent to Engineering Flight Test for review
    • 650 O&M Guide has been reviewed by Engineering, and is in queue at Technical Publications to be printed and released
    • 525B MMEL proposal sent to FAA in July 2004. FAA posted draft MMEL on www.opspecs.com 11/01/04

    For any questions on MMEL's, please contact:

    Rob Below

    Citation Sovereign Zonal Inspection program
    ATA 05-00

    During the MSG-3 analysis, the Sovereign was subdivided into zones. Each zonal area was reviewed to determine the types of systems and structural items installed and any associated wiring, tubing, ducting, pulleys, quadrants, supports, etc. The likelihood of deterioration of these items, including the effect of the operational environment was also evaluated. General Visual Inspection tasks from the systems, powerplant and structure analysis were cross-referenced to the appropriate zonal areas. These tasks are considered satisfied by performing the zonal inspection.

    The Zonal Inspection Program requires access to the zones and should be easily accomplished without the use of special tools. There are no requirements to remove or displace items within the zone in order to perform the inspection. Inspection aids normally used are a flashlight and/or mirror. The entire visible contents of the zone must be inspected for obvious damage, security of installation, and general condition including corrosion and leaks. Zonal Inspections are conducted at different intervals depending on the congestion in the area, the significance of the equipment in the area, and the environment of the zone.

    In order to determine the general condition and security of items contained in the Zonal Inspection Program, the inspection is conducted at a distance no greater than arms length. This includes checking for evidence of degradation such as corrosion, cracks, chafing of tubing, loose duct support, wiring damage, cable and pulley wear, fluid leaks, inadequate drainage and for other conditions which could lead to corrosion/damage.

    The technician performing the inspection must understand the following concepts: "Obvious unsatisfactory conditions/discrepancies" include, but are not limited to frayed wiring insulation, loose/unsecured connectors, broken bonding/bonding shields, slack or nicked cables, any sign of fluid leakage, corrosion, and loose/misalignment of linkage. This is only an example of the types of discrepancies a General Visual Inspection is intended to discover.

    If you have any questions regarding this issue, please contact:
    Jerry Morris


    Model 650 Skid Rail Installation Tips
    ATA 32-00

    If the skid rails on a Model 650 are removed for inspection or to address fuel leaks, the epoxy primer coating on the exposed lower wing skin also needs to be inspected. The area under the skid rail is to be completely protected prior to installing the skid rail. The following tips will help make sure corrosion does not become a future problem.

    Initially, remove any minor surface corrosion and apply a chemical film treatment to the bare surfaces. If extensive corrosion is found, contact our Structures group for further guidance before removing the corrosion.

    Except for the local areas around the skid rail attach bolt holes; apply two coats of epoxy primer to the lower wing skin, allowing the first coat to thoroughly cure. In order to retain an electrical continuity with the skid rail inserts, the local areas around the attach bolt holes should only have a chemical film treatment applied.

    Prior to installing the skid rail, fay surface seal the rail with Type VIII sealant to fill any gaps between the skid rail and lower wing skin. Omit sealant locally around the attach bolt holes to facilitate an electrical bond between the aluminum skid rail inserts and wing skin. After the installation is complete, remove any excess sealant and apply a peripheral fillet seal around the rail and spacer blocks with Type I Class B sealant. The final step is to verify the electrical continuity between the skid rail and lower wing skin.

    If you have any questions regarding this issue, please contact:
    Seth Parson


    Hydraulic Mule Part Number Correction
    ATA 29-00

    The maintenance manuals for the Citation 500, S550, 550, and 560 list an incorrect part number (C2SF2AP4562CE26A) for the hydraulic service unit in Chapter 32-01-00. The correct numbers are listed in the corresponding Illustrated Tools & Equipment Manual. The correct numbers are 06-4035-3600 (Tronair) or CJMD129-002 (HYSPECO).

    In addition, the maintenance manuals list a portable hydraulic service unit, part number CJMD112-001, in Chapter 32. This portable unit is NOT to be used for the tasks outlined in Chapter 32 (Landing Gear) or 78 (Thrust Reversers) because it does not have a high enough flow rate. It is to be used only for servicing the hydraulic reservoir.

    A Technical Publications Change Request has been submitted to list the correct hydraulic service unit number in the next revision of the affected Maintenance Manuals. A note will also be added to clarify that the CJMD112-001 is to be used for servicing the hydraulic reservoir, not for performing hydraulic system checks.

    If you have any questions regarding this issue, please contact:

    Michelle Mueller

    Models 525 and 525A Pylon Firewall
    ATA 54-00

    If you have experienced cracking and buckling conditions in the pylon mid-firewall and firebox assemblies, we have some good news to share with you. Cessna has released Recommended Service Bulletin 525-54-04 Rev 1 in September 2004 and SB525A-54-01 in October 2004 to address these issues.

    The service bulletins incorporate the Model 525B firewall design, with increased material thickness, added stiffeners, and changes in load path to minimize future problems. The same enhancements were incorporated in 525-0538 and on and 525A-0214 and on. Please consider incorporating the applicable service bulletin the next time your engine(s) are removed.

    For any questions please contact:
    Brett Palmiero


    Mode S and Ground Surveillance Radar
    ATA 34-00

    Some airports in North America are now using Mode S transponders to assist in tracking of vehicle surface movement. This requires the transponder to remain selected to a flight mode while on the ground. A squat switch input forces the transponder into a "forced standby" mode that still allows it to respond to ground control interrogations, but does not create nuisance TCAS alerts.

    Current Cessna checklists instruct the pilot to place the transponder in "off or standby" to prevent nuisance TCAS alerts and radar clutter. This practice is no longer valid for aircraft equipped with the latest Mode S transponders.

    We recommend that you change your after-landing checklist to read "transponder - as required". Aircraft with older transponders or aircraft without the "forced standby" feature should still select "off or standby" after landing. Newer Mode S equipped aircraft may leave the transponders in "ON", "ALT", "TA" or "TA/RA" modes. Part 91 operators with non-FAA approved abbreviated checklists may change those checklists at your discretion. Part 135 operators and Part 91 operators with FAA approved checklists (CJ series) must have changes approved by an appropriate FSDO representative. Cessna AFM's and checklists will be updated with this verbiage as other revisions become necessary in the next 12-24 months.

    If your installation was completed by someone other than Cessna, please verify that the "Weight on Wheels" or "Squat Switch" input are fed into the transponders. The transponder needs to know that the airplane is on the ground to prevent responses to interrogations, which could impair the affectivity of TCAS and congest the ATC system.

    For any questions please contact:
    Rob Below


    Accessing Your Sovereign Information on CessnaSupport.com

    Anytime a new model is added to the Citation fleet, it is necessary to update your personal profile on CessnaSupport.com if you want to view information for that model. Perform the following steps to access the Citation Sovereign information on the Cessnasupport.com website:

    NOTE: The same procedure is necessary to view information on existing Citation models that you have not accessed in the past.

    • Log on to www.CessnaSupport.com
    • Click on “Change Area Access” from the bulleted list on the left side of the screen.
    • On the “Request Access to New Areas” screen, click in the check box next to “Citation 680” or desired model.
    • Click on the “Submit” button.
    • A message confirming your access request will appear.
    • Click on the “Return To Home” link.

    You should have immediate access to the Citation models you requested. Please contact the Citation Customer Support HotLine at 800-835-4090 or 316-517-6261 if you have any questions.

    TAWS Service Bulletins - Citation 500, 550, 525, S550 & 560
    ATA 34-00

    The FAA has issued its final report on the TAWS mandate, which goes into effect March 29, 2005. The final rule defines two classes of TAWS equipment:

    1. Class A systems, which apply to all Part 121 and 135 operations with aircraft configured with at least 10 passenger seats.

    2. Class B systems, which apply to all Part 91 operators, for aircraft having six or more passenger seats, and Part 135 operators with six to nine passenger seats.

    Cessna has released Class A TAWS service bulletins for various Citation models to install Honeywell’s EGPWS products:
  • 525 Citation CitationJet: SB525-34-55 (Mark V); SB525-34-56 (Mark VIII)
  • 550 Citation II: SB550-34-102 (Mark VIII)
  • 550 Citation Bravo: SB550-34-89 (Mark VII); SB550-34-88 (Mark VIII)
  • 560 Citation V: SB560-34-112 (Mark VIII)
  • 560 Citation Ultra: SB560-34-108 (Mark VII); SB560-34-107 (Mark VIII)

    Cessna’s Class A TAWS service bulletins provide the flight crew with aural and visual alerts to unintended approach to terrain. They provide additional crew situational awareness by incorporating airspeed, attitude, crew response time, current flight stage and many other factors. Ground Proximity Warning Systems (GPWS) are being replaced with this new enhanced technology (EGPWS), which provides all the functionality of the GPWS with the addition of Premature Descent Alerts (PDA) and Forward Looking Terrain Avoidance (FLTA).

    Similarly, service bulletins for the installation of the Sandel ST3400 Class B solution are available for all Model 500 Legacy aircraft:

  • 500 Citation: SB500-34-66
  • 550 Citation II: SB550-34-97
  • S550 Citation SII: SBS550-34-38
  • 560 Citation V: SB560-34-121

    Cessna’s Class B TAWS solutions have most of the features of Class A, and the information is presented exceptionally well in the Sandel displays.

    Cessna’s TAWS service bulletins are unmatched in the aerospace industry, with expert Citation Engineering support, installation documentation, regulatory certification, and unsurpassed post-installation support. The extensive experience and knowledge base of Cessna’s Worldwide Service Center Network ensures that TAWS integrates seamlessly with your current Citation architecture, enabling your aircraft to return to service quicker. The Cessna TAWS service bulletins are available through Citation Parts Distribution.

    For more information on Cessna’s TAWS service bulletins contact your preferred Cessna Citation Service Center, or e-mail your questions to TAWS@cessna.textron.com

  • Top Of Page

    The Calendar
    Citation Customer Conference
    Wichita, KS
    May 2,3, and 4, 2005
    European Business Aviation
    Conference & Exhibition

    M&O Informational Session
    Geneva, Switzerland
    May 18, 19, and 20, 2005


    Phone Number Correction - Team Excel

    Please note that the Team Excel phone number is 1-877-483-2695. The number was incorrectly listed in the Customer Support Directory. We apologize for any inconvenience.


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