AIRCRAFT SERVICE CHANGE - Code7700

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Gulfstream G450 Aircraft Service Change 072“December 22, 2011”Special Equipment / ToolsRequired:Aircraft PC Laptop with Remote Terminal Tool version23.0 or later. Refer to Gulfstream PlaneViewMaintenance Applications disk version 8.1 or later, PN1159LAP59000.Skill Type Required: Knowledge of the G450 communication system,electrical standard practices and software loadingprocedures will be required for this installation.Price:Prices are subject to change without notice.Installed Price:Installation labor is included in the kit price.Kit Price only: Domestic: $ 110,000.00International: $ 112,000.00NOTE:Installation labor is included in the cost of this ASC only if installed at aGulfstream Aerospace or Gulfstream-approved facility.Page 3 of 10
Gulfstream G450 Aircraft Service Change 072“December 22, 2011”MODIFICATION INSTRUCTIONS:CAUTION:NOTE:PROTECT WIRE BUNDLES, CONNECTORS AND SURROUNDINGSTRUCTURE DURING ANY MAINTENANCE PROCEDURE FROMSHAVINGS, DEBRIS AND CONTAMINATION. MAINTAIN A PROPERLYCLEANED WORK AREA THROUGHOUT THE PROCEDURE TO ENSURETHE INTEGRITY OF THE AFFECTED COMPONENT / SYSTEM. VISUALLYINSPECT WORK AREA USING ADDITIONAL LIGHT AS NECESSARY TOVERIFY ABSENCE OF ANY DEBRIS PRIOR TO COMPLETION OFPROCEDURE. FAILURE TO COMPLY MAY RESULT IN DAMAGE TOCOMPONENTS AND / OR SYSTEMS.Prior to, or at the time this ASC is ordered, operators are required to supply aconfiguration report of the Central Maintenance Computer (CMC). The CMCwill be reviewed for current configuration. The CMC configuration report maybe stored on the aircraft PC laptop then electronically submitted toGulfstream Technical Operations at asc.software@gulfstream.com.A. Software backup and preparation for modifications:1. Verify a CMC configuration report has been submitted.B. Prepare aircraft for safe maintenance / modification as follows:1. Remove all electrical power, turn all cockpit switches off and disconnect batteryquick disconnects. Refer to G450 AMM, Chapter 20.2. Pull, tag and install safety clips on circuit breaker (CB) labeled VOICERECORDER on the REER CB panel under FLT INSTRUMENTS as noted in G450AMM, Chapter 23-72-01.3. Gain access to the cockpit voice recorder (CVR) in the tail compartment. SeeFigure 1.C. Modify aircraft as follows referencing Figures 2 through 4 as applicable:1. Disconnect plug 024A1P1 from the CVR.2. Aircraft 4212 – 4229 de-pin existing wire number RR66D22 from 024A1P1 pin 12.Cap and stow using sleeve, PN GAS830CV13-9.3. Aircraft 4212 – 4221 swap existing wires RR64D22 and RR65D22 at 024A1P1pins 18 and 10 so RR64D22(w) is in pin 10 and RR65D22 (bl) is in pin 18.4. Aircraft 4212 – 4229 add new wire RR26A22N and terminate using contact, PNM39029/57-354, at 024A1P1 pin 48.5. Aircraft 4212 – 4229 add new wire RR83A22N and terminate using contact, PNM39029/57-354, at 024A1P1 pin 12.6. Aircraft 4212 – 4229 route new wires RR26A22N and RR83A22N with similarexisting bundles to ground point E4095E. Terminate using terminal lugs, PNGAT805H18-08.7. Aircraft 4230 – sub remove end caps from RR86A22N, RR64D22(w) andRR65D22(bl) and terminate (if necessary) using contact, PN M39029/57-354, atpins 12, 10 and 18 respectively in plug 024A1P1.8. Secure all wiring and reconnect plug 024A1P1 to CVR.Page 4 of 10
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AIRCRAFT SERVICE CHANGE - Code7700

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