"2011 DIRECT"... - Cessna

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550, S550 and 560, ATA: 34-50 Tips for New TCAS II Control Heads Operators of airplanes with optional TCAS II and MST-67A elementary or enhanced surveillance transponders installed should be aware that grounding of a replacement TCAS Control Head is required before installation. The control head will display a “NO CNFG” if the device is not properly grounded. To configure the control head, utilize one of the following procedures for either elementary or enhanced surveillance TCAS control heads: Elementary Surveillance • Post SB550-34-93 aircraft including 550/551-0002 thru -0733 • Post SBS550-34-37 aircraft including S550-0001 thru -0160 • Post SB560-34-116 aircraft including 560-0001 thru -0259 with Collins radios 1. Refer to the applicable Chapter 34 maintenance manual removal procedures for removing the existing control head. 2. Configure the new 071-01618-0125 TCAS Control Head. a. With a grounding wire, connect J1 pin 24 to the airplane ground. b. Place the DC POWER BATT switch in the BATT position. c. Place the AVIONICS POWER switch in the ON position. d. On the new control head, turn the A/N/B range dial to part number -5202. e. Place the AVIONICS POWER switch in the OFF position. f. Place the DC POWER BATT switch in the OFF position. g. Remove the grounding wire from J1 pin 24. 3. Refer to the applicable Chapter 34 maintenance manual installation procedures for installing the new control head. Enhanced Surveillance • Post SB550-34-92 aircraft including 550-0801 thru -1136 • Post SB560-34-115 aircraft including 560-0260 thru -0538 with Collins equipment 1. Refer to the applicable Chapter 34 maintenance manual removal procedures for removing the existing control head. 2. Configure the new 071-01618-0125 TCAS Control Head. a. With a grounding wire, connect J1 pin 24 to the airplane ground. b. Place the DC POWER BATT switch in the BATT position. c. Place the AVIONICS POWER switch in the ON position. d. On the new control head, turn the A/N/B range dial to part number -4404. e. Place the AVIONICS POWER switch in the OFF position. f. Place the DC POWER BATT switch in the OFF position. g. Remove the grounding wire from J1 pin 24. 3. Refer to the applicable Chapter 34 maintenance manual installation procedures for installing the new control head. Questions, please contact: Team Legacy 1-800-835-4090 hotline@cessna.textron.com page 10
Keeping a Citation Cool in Hot Summer Months 500, 510, 525, 525A, 525B, 525C, 550, S550, 560 and 560XL, ATA: 21-50 Summer season is just around the corner. The air conditioning evaporator and compressor system components of aircraft will soon be working hard to keep aircrew and passengers comfortable. To make sure the air conditioning system is operating to its potential, here are a few maintenance tips: Note: Cleanliness promotes longer life for any appliance. As air conditioning components are inspected, <strong>Cessna</strong> recommends making an effort to clean each component when access is available. Access - 1. Refer to the applicable maintenance manual to get access to the evaporator and compressor system components. Inspection - 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). Cleaning - 12. Make sure the evaporator coils are clean and clear of foreign matter that can restrict airflow or optimum performance. 13. Make sure the drive or blower motor, fan or blower assemblies are clean and clear of foreign matter that 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 clean and 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 or luggage 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 Items - 18. Refer to the applicable maintenance manual to install items that were removed for access to the evaporator and compressor system component(s). System Operation - 19. Refer to the applicable maintenance manual to operate the air conditioning system in manual mode with warm ambient temperatures present. a. Driving the air conditioning system in full cold should cause the compressor to operate continuously without cycling. b. If the air conditioning does cycle, the refrigerant levels could be too high or low and should be evacuated and serviced. Note: If 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 be considered. Questions, please contact: Team Legacy 1-800-835-4090 hotline@cessna.textron.com Team CJ 1-800-835-4090 hotline@cessna.textron.com Team Mustang 316-517-5490 (Direct) 1-877-832-6510 (WATS) teammustang@cessna.textron.com Team Excel 316-517-1400 (Direct) 1-877-560-3960 (WATS) teamxl@cessna.textron.com page 11 www.citationservice.com
Page 1 and 2: DIRECTC I T A T I O N approach JUNE
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Page 11: All Models Except Mustang, ATA: 56-
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Page 17 and 18: 500, 550, S550, 560 and 560XL, ATA:
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"2011 DIRECT"... - Cessna

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