400W Series Instructions for Continued Airworthiness Bell 206B Reg. No.____________ S/N_______________ Dwg. Number: 190-01226-04 Rev. 2 Garmin International, Inc. 1200 E. 151st Street Olathe, Kansas 66062 USA Record of Revision Rev. Date Description of Change 1 2 7/16/10 8/11/10 Initial Release Updated ref. doc. revisions in section 2.1, revised part number and weight of item 2 in table 2.2.1.
1. INTRODUCTION................................................................................................................... 3 1.1 Purpose................................................................................................................. 3 1.2 Scope.................................................................................................................... 3 1.3 Document Control................................................................................................. 3 1.
1. INTRODUCTION 1.1 Purpose This document is designed for use by the installing agency of the Garmin Model 400W series GPS/WAAS Nav/Com as Instructions for Continued Airworthiness in response to Title 14 CFR Part 27.1529, Part 27 Appendix A. This ICA includes information required by the operator to adequately maintain the Garmin 400W unit installed. 1.
2. INSTRUCTIONS FOR CONTINUED AIRWORTHINESS 2.1 Introduction Content, Scope, Purpose and Arrangement: This document identifies the Instructions for Continued Airworthiness for the modification of the rotorcraft by installation of the Garmin 400W Series GPS/WAAS Nav/Com units. Applicability: Applies to Bell models 206B rotorcraft altered by installation of the Garmin 400W Series GPS/WAAS Nav/Com units. Definition of Abbreviations: See Section 1.
2.2 Description of Alteration This STC upgrades existing avionics for the Bell 206B rotorcraft as summarized below. The Garmin Model 400W Series GPS/WAAS Nav/Com unit is a 6 ¼ inch wide unit mounted in the center pedestal of the Bell 206B. The 400W Series units combine a large number of easily accessible controls to use the color multi-function display, Nav and Com transceiver, GPS/WAAS navigator in a single unit. A GPS/WAAS antenna is installed on the top of the Bell 206B forward engine cowl.
5. 6. 400W SERIES UNIT: FS39.7 Access or remove by using a 3/32 allen head screwdriver to loosen the locking mechanism through the access hole on the front of the unit. Note: location may vary slightly depending whether or not a dual navigator system is installed. LOWER CIRCUIT BREAKER PANEL: FS60.8, WL26.5 Access or remove by extracting the four mounting ¼ turn fasteners along the sides of the circuit breaker panel. 2.2.
2.3 Control, Operating Information See the Pilot’s Guides or the 400W Rotorcraft STC Installation Manual for system operation and self-test information. The 400W Rotorcraft STC Installation Manual is listed under the reference documentation in paragraph 2.1 of this document, and the Pilot’s Guides are listed in the related documents section of the 400W Rotorcraft STC Installation Manual. 2.4 Servicing Information None.
2.5.1 Cleaning the Front Panel The front bezel, keypad, and display can be cleaned with a soft cotton cloth dampened with clean water. DO NOT use any chemical-cleaning agents. Care should be taken to avoid scratching the surface of the display. 2.5.2 Display Backlight The display backlight lamp is rated by the manufacturer as having a usable life of 20,000 hours. This life may be more or less than the rated time depending on the operating conditions of the 400W Series unit.
Problem Possible Cause Solution GPS signal levels drop when avionics are turned on. • Noise interference from other avionics. • Turn all avionics off, then turn on each piece one at a time to isolate the source of the interference. Route GPS cable and locate GPS antenna away from sources of interference. The GPS signal levels are very low. • Improper antenna installation or coax routing. • Check GPS antenna installation, connections, and cable routing.
Problem unit (ARINC 429 Roll Steering used) Possible Cause • ARINC 429 output port speed not correct. • Check ARINC 429 output port speed setting for port that autopilot is connected to and verify that the speed is correct for autopilot. • Wiring connections are incorrect. • • Certain autopilots require groundspeed for GPSS to be enabled. • Ensure that groundspeed is provided if required by the autopilot. RMI pointer does • Desired RMI source has not not indicate correctly been selected.
Problem CDI scaling on EFS 40/50 is not correct. Possible Cause • On EFS 40/50, FMS #1/#2 configuration is not set to “KLN 90-GPS”. 400W Series Instructions for Continued Airworthiness Bell 206B Solution • Reconfigure EFS 40/50 for KLN 90-GPS” on FMS #1/#2 inputs as appropriate. 190-01226-04 Rev.
2.6.1 400W Series Alerts The 400W Series will display a number of alerts. These are listed in the following table. Table 3.
Alert Text COM is not responding 420W and 430W only) COM needs service 420W and 430W only) COM push-to-talk key stuck 420W and 430W only) COM remote transfer key is stuck (420W and 430W only) Possible Cause • Internal system-to-system communication between the main processor and the COM transceiver has failed. Operational status of the COM transceiver is unknown. • The unit has detected a failure in its communications transceiver. The COM transceiver may still be usable.
Alert Text Data transfer error, please re-transmit Display backlight failure Do not use for navigation G/S has failed 420W and 430W only) G/S is not responding 420W and 430W only) G/S needs service 420W and 430W only) GAD configuration required GAD needs service GDL 69 is not responding Possible Cause Solution • An error was detected during unit-to-unit crossfill of user data (user waypoints and/or flight plans). • The 400W Series unit has detected a failure in the display backlighting.
Alert Text check GPS antenna (main software version 3.20 and later). GPS needs service Large magnetic variance Loss of integrity — crosscheck NAV Low Battery - Unit Needs Service MAIN processor requires service No altitude input is being received No basemap data available Not receiving input data on 429 Channel #1 or #2 Possible Cause • Internal system-to-system communication between the main processor and the GPS receiver has failed. Operational status of the GPS receiver is unknown.
Alert Text Possible Cause Not receiving input data on 232 Channel #(1 through 5) • No data has been received on one (or more) of the RS-232 channel connections for a period exceeding ten seconds. Not receiving traffic data • No traffic data is being received. Solution • Refer to Table 6-1 “RS-232 device is not communicating with the GPS400W/GNC420W/GNS430 W” • Check for proper configuration • Check the wiring OBS key stuck OBS not available • The OBS key is stuck in the enabled (or pressed) state.
Alert Text TERRAIN has failed Traffic device has failed Traffic device needs service Possible Cause Solution • The unit has detected a failure in the terrain system. • Ensure that Terrain database is inserted in the right most card slot. • Reload the TERRAIN database. • Contact Garmin technical support. • The 400W Series unit cannot communicate with the traffic system and/or the traffic system is reporting a system failure.
Alert Text WX-500 device has failed Possible Cause Solution • The 400W- Series unit cannot communicate with the WX-500. • Check for proper configuration • The WX-500 is reporting a system failure. • Check the wiring • Refer to the WX-500 installation manual for additional troubleshooting information. WX-500 heading has failed • The WX-500 is reporting invalid heading data. • Check for proper configuration of WX-500 • The failure may be within the WX-500 or other connected equipment.
2.7 Removal and Installation Information If any work has been done on the rotorcraft that could affect the system wiring, antenna cable, or any interconnected equipment, verify the 400W Series unit power-up self-test sequence is successfully completed and no failure messages are annunciated. Whenever removing or installing units, remove power from the LRU by removing rotorcraft power or opening the LRU circuit breaker. 2.7.1 400W Series Unit 2.7.1.
2 3 Remove old sealant. Insert a 3/32-inch hex drive tool into the access hole at the bottom of the unit face. Lift the antenna off the rotorcraft and detach the coax (from the outside). If a GA 37 antenna verify coax(s) are properly labeled with correct color band. Note: GPS coax is labeled with a blue band and XM cable with a yellow band. 2.7.2.2 Installation For GA 36 or GA 37 GPS antenna installation, follow the installation procedures contained in the installation drawing listed in paragraph 2.
2.9 Special Inspection Requirements 2.9.1 Post-Lightning Strike Inspection In the event of a suspected or actual lightning strike to the rotorcraft, the GA 36 or GA 37 GPS antenna installation shall be inspected to ensure that there is no structural damage around the areas where lightning may have attached. If there is visible sign of damage to the antenna then it must be replaced. Verify that the 400W series unit receives and displays GPS satellite information normally. 2.9.
The latest revision of this document will be available through any Garmin dealer or from Garmin customer assistance. A Garmin Service Bulletin, describing ICA revision, will be sent to dealers if revision is determined to be significant. 2.16 Assistance FAA Flight Standards Inspectors or the certificate holder’s PMI have the required resources to respond to questions regarding this ICA. In addition, the customer may refer questions regarding this equipment and its installation to the manufacturer, Garmin.
