# FALCON 7X

No 133 DECEMBER 04, 2009 

# MANDATORY ATA 24 ELECTRICAL POWER

PDCU AND GCU INSPECTION OF TRANSIENT VOLTAGE SUPPRESSION DIODES 

# FALCON SERVICE BULLETIN

Copyright © 2009 by Dassault Aviation All rights reserved. No part of this work may be reproduced or copied in any form or by any means without written permission

of Dassault Aviation. 

### 785

### ELECTRICAL POWER PDCU AND GCU INSPECTION OF TRANSIENT VOLTAGE SUPPRESSION DIODES Initial issuance December 04, 2009 List of effective pages: 1 to 6 

# FALCON 7X 7X-133

ATA 24

### PDCU AND GCU INSPECTION OF TRANSIENT VOLTAGE SUPPRESSION DIODES 1. PLANNING INFORMATION A. EFFECTIVITY This Service Bulletin is applicable to FALCON 7X aircraft with serial numbers 4, 5, 6, 7, 10, 12, 15, 16, 20, 22, 24, 25, 26, 29, 30, 32, 33, 35, 36, 38, 40, 41, 43, 44, 46, 51, 52, 56 and 63 which are equipped with the following equipment: • LH PDCU A ( L301PM ) part number (P/N) 80232190, • RH PDCU A ( R301PM ) P/N 80232190, • LH PDCU B ( L401PM ) P/N 80232191, • RH PDCU B ( R401PM ) P/N 80232191, • engine 1 GCU ( 5500PC ) P/N 80232192, • engine 2 GCU ( R201PC ) P/N 80232192, • engine 3 GCU ( 6500PC ) P/N 80232192, • APU starter GCU ( 303PC ) P/N 80232192. B. REASON Some cases of RH essential bus disconnection from the RH main bus, with the " ELEC: RH MAIN FAULT" CAS message, have been reported on in-service aircraft. The investigation revealed that this disconnections were caused by an overcurrent detection, due to a defective component, called transient voltage suppression diodes, located on PDCU and GCU cards. The purpose of this Service Bulletin is to inspect the PDCU and GCU cards in order to replace the defective ones. C. DESCRIPTION The operation consists in: • removing the PDCU and GCU cards, • checking the cards (this operation must be performed by a GOODRICH representative), • replacing the defective cards. D. COMPLIANCE Mandatory: • It is anticipated that this Service Bulletin will be rendered mandatory by an EASA Airworthiness Directive. • As prescribed by the Airworthiness Authorities of the country of registration of the aircraft. E. APPROVAL The technical content of this document is approved under the authority of DOA nr. EASA.21J.051. F. LABOR Estimated labor-hours: 4 hours 

# FALCON 7X 7X-133

December 04, 2009 ATA 24 Initial issuance Page 1 / 6DASSAULT AVIATION Proprietary DataThe labor-hours required to perform this Service Bulletin are those required for the corresponding normal

maintenance operation. NOTE: These labor-hours only concern the work described in this Service Bulletin and do not include other maintenance work which may be performed on this occasion. G. MATERIAL - PRICE AND AVAILABILITY The modification kit may be obtained from either address listed below: Western hemisphere: DASSAULT FALCON JET CORP. SPARES DISTRIBUTION CENTER 200 RISER ROAD LITTLE FERRY, NJ 07643 U.S.A. Telephone: • CANADA and U.S.A.: 1-800-800-4036 • MEXICO: 001-800-800-4036 • Other countries: 1-201-541-4809 Fax: • CANADA and U.S.A.: 1-800-800-4817 • MEXICO: 001-800-800-4817 • Other countries: 1-201-440-7021 Other continents: DASSAULT AVIATION Falcon Spares BOITE POSTALE N°101 AEROPORT DU BOURGET 93350 - LE BOURGET Cedex (FRANCE) Please contact your Dassault Aviation Account Representative Telephone: 33 (0)1.48.35.56.78 Fax: 33 (0)1.48.35.56.00 Price and availability on request. H. TOOLING - PRICE AND AVAILABILITY Normal maintenance tooling. I. WEIGHT AND BALANCE Change in weight: None. Change in balance with respect to 25% MAC: None. J. REFERENCES Aircraft Maintenance Manual: 

# FALCON 7X 7X-133

December 04, 2009 ATA 24 Initial issuance Page 2 / 6DASSAULT AVIATION Proprietary Data• GENERAL MAINTENANCE AND SAFETY PRECAUTIONS (Refer to TASK 20-00-00-910-801 ) • REMOVAL / INSTALLATION OF THE GENERATOR CONTROL UNITS (GCU) ( Refer to TASK 24-31-09-900-801 ) • REMOVAL / INSTALLATION OF THE POWER DISTRIBUTION CONTROL UNITS (PDCU) (Refer to TASK 24-61-09-900-801 ) GOODRICH POWER SYSTEMS Service Bulletins N° 80232190-24-01, 80232191-24-01, 80232192-24-01. K. OTHER PUBLICATIONS AFFECTED The following publication will be revised at a later date to account for the changes introduced by this Service Bulletin: • None 

# FALCON 7X 7X-133

December 04, 2009 ATA 24 Initial issuance Page 3 / 6DASSAULT AVIATION Proprietary Data2. ACCOMPLISHMENT INSTRUCTIONS

A. PRELIMINARY STEPS (1) The aircraft must be in the maintenance configuration (Refer to TASK 20-00-00-910-801 ). B. PROCEDURE CAUTION: ACCOMPLISHMENT OF GOODRICH SERVICE BULLETINS N° 80232190-24-01,

80232191-24-01, 80232192-24-01 MUST BE PERFORMED BY A GOODRICH REPRESENTATIVE. NOTE: All defective cards must be replaced with new ones. (1) Remove: (a) LH PDCU A ( L301PM ) (Refer to TASK 24-61-09-900-801 ), (b) RH PDCU A ( R301PM ) (Refer to TASK 24-61-09-900-801 ), (c) LH PDCU B ( L401PM ) (Refer to TASK 24-61-09-900-801 ), (d) RH PDCU B ( R401PM ) (Refer to TASK 24-61-09-900-801 ), (e) engine 1 GCU ( 5500PC ) (Refer to TASK 24-31-09-900-801 ), (f) engine 2 GCU ( R201PC ) (Refer to TASK 24-31-09-900-801 ), (g) engine 3 GCU ( 6500PC ) (Refer to TASK 24-31-09-900-801 ), (h) APU starter GCU ( 303PC ) (Refer to TASK 24-31-09-900-801 ). (2) Check the transient suppression diodes installed on LH PDCU A ( L301PM ) and RH PDCU A ( R301PM ) (refer to GOODRICH Service Bulletin n° 80232190-24-01). (3) Check the transient suppression diodes installed on LH PDCU B ( L401PM ) and RH PDCU B ( R401PM ) (refer to GOODRICH Service Bulletin n° 80232191-24-01). (4) Check the transient suppression diodes installed on engine 1 GCU ( 5500PC ) , engine 2 GCU ( R201PC ) , engine 3 GCU ( 6500PC ) , APU starter GCU ( 303PC ) (refer to GOODRICH Service Bulletin n° 80232192-24-01). C. FINAL STEPS (1) Install: (a) LH PDCU A ( L301PM ) (Refer to TASK 24-61-09-900-801 ), (b) RH PDCU A ( R301PM ) (Refer to TASK 24-61-09-900-801 ), (c) LH PDCU B ( L401PM ) (Refer to TASK 24-61-09-900-801 ), (d) RH PDCU B ( R401PM ) (Refer to TASK 24-61-09-900-801 ), (e) engine 1 GCU ( 5500PC ) (Refer to TASK 24-31-09-900-801 ), (f) engine 2 GCU ( R201PC ) (Refer to TASK 24-31-09-900-801 ), (g) engine 3 GCU ( 6500PC ) (Refer to TASK 24-31-09-900-801 ), (h) APU starter GCU ( 303PC ) (Refer to TASK 24-31-09-900-801 ). 

# FALCON 7X 7X-133

December 04, 2009 ATA 24 Initial issuance Page 4 / 6DASSAULT AVIATION Proprietary DataD. RECORDING

Record compliance with this Service Bulletin in the appropriate aircraft documents. Fill out the electronic Service Bulletin reply form located in the ”Service Bulletin" page on the Falcon portal. 

# FALCON 7X 7X-133

December 04, 2009 ATA 24 Initial issuance Page 5 / 6DASSAULT AVIATION Proprietary Data3. MATERIAL INFORMATION

A. PART NUMBER OF CARDS

NEW P/N Q T Y KEY WORD OLD P/N 80232190 1 LH PDCU A 80232190 80232190 1 RH PDCU A 80232190 80232191 1 LH PDCU B 80232191 80232191 1 RH PDCU B 80232191 80232192 1 Engine 1 GCU 80232192 80232192 1 Engine 2 GCU 80232192 80232192 1 Engine 3 GCU 80232192 80232192 1 APU starter GCU 80232192 NOTE: The defective card(s) must be sent to GOODRICH POWER SYSTEMS.



### END OF DOCUMENT 

# FALCON 7X 7X-133

December 04, 2009 ATA 24 Initial issuance Page 6 / 6DASSAULT AVIATION Proprietary DataGoodrich Power Systems Westfi eld Road Pitstone LU7 9GT England 0044 1296 663000 

## SERVICE BULLETIN STANDARD 

### ELECTRICAL POWER - PDCU A PT. NO. 80232190, 80231869/S5, 80231869/S6 AND

80231869/S7 INSPECTION/CHECK OF THE TRANSIENT SUPPRESSION DIODES INSTALLED

INITIAL ISSUE OF SERVICE BULLETIN 80232190-24-01 AIRCRAFT APPLICABILITY DASSAULT FALCON 7X 1. Instructions A. The Service Bulletin was written under EASA Approval No. UK.145.00858. B. The technical content of this document is approved under the authority of DOA No. EASA.21J.051.

Copyright in this Service Bulletin and associated documents and drawings belongs to Goodrich Power Systems and all rights are reserved. No reproduction of all or part of this Service Bulletin shall be made without the prior written consent of Goodrich Power Systems. This document contains information that may be con fi dential and its disclosure to others requires the written consent of Goodrich Power Systems. 

### SERVICE BULLETIN Number 80232190-24-01INTENTIONALLY BLANK 

### SERVICE BULLETIN Number 80232190-24-011. Planning Information A. Effectivity (1) This Service Bulletin (SB) applies to the Goodrich Corporation PDCU A Cards Pt. No. 80232190, 80231869/S5 80231869/S6 and 80231869/S7 installed in the Left and Right Primary Power Distribution Box (PPDB), installed on the Falcon 7X aircraft. B. Concurrent Requirements (1) None. C. Reason (1) Dassault Aviation has performed an analysis of aircraft-level effects associated with degradation of 33 Volt Transient Voltage Suppression (TVS) Diode in the Primary Distribution Control Unit (PDCU) and Generator Control Unit (GCU) printed circuit board assemblies. D. Description (1) The TVS Diodes have been categorised based on the severity of the effect. This SB gives the procedures necessary to identify the degradation of “Priority 1 and 2” TVS Diodes. E. Compliance recommendation (1) At the next removal of a PDCU A card. F. Approval (1) The technical content of this document is approved under the authority of DOA No. EASA.21J.051. G. Manpower (1) 0.25 Man hours H. Weight and Balance (1) None. I. Electrical Load Data (1) None. J. Software Accomplishment Summary (1) Not applicable K. References (1) This SB was written using Goodrich Engineering Report PG0900400ED and rework drgs 80232007 & 80232214 as source data. L. Other Publications Affected – Goodrich ACMM for the PDCU-A CARD ASSEMBLY Part No. 80232190, ATA No. 24-61-08 will be revised to include the data contained in this SB. – Goodrich CMM for the Left PPDB, Part No. SW02101, ATA No. 24-61-01 will be revised to reference the data contained in this SB – Goodrich CMM for the Right PPDB, Part No. SW02201, ATA No. 24-61-02 will be revised to reference the data contained in this SB M. Interchangeability or Intermixability of Parts (1) Not applicable 

### SERVICE BULLETIN Number 80232190-24-01

Initial Issue : Aug 13/09 

## 80232190-24-01 Revision Date : Aug 13/09 Page 1 of 9 ©: Goodrich Power Systems - 2009 All rights reserved.2. Material Information A. Material - Price and Availability (1) Not Applicable. B. Industry Support Program (1) Not Applicable. C. Material Necessary for each Component/Engine (1) Not Applicable. D. Spare Parts Availability (1) Not Applicable. E. Re-identi fi ed Parts (1) None. F. Tooling - Price and Availability (1) The tools given below are necessary for this SB and are to be procured from the sources given. Prices and lead times for Goodrich tools are available on request. Qty Part Number Source Keyword

1 - Commercially Available ESD Surface mat and wrist band 1 TE2-0658 Goodrich Power Systems Falcon multi-channel transorb tester (33V) 1 - Commercially Available Power supply 48V D.C. 2 - Locally Made Ground lead with 4mm plug terminations 2 - Commercially Available Crocodile clip 3. Accomplishment Instructions A. General CAUTION: THE SPDB CONTAINS ITEMS THAT ARE ELECTROSTATIC-DISCHARGE SENSITIVE (ESDS). OBEY APPROVED INDUSTRY PRECAUTIONS WHEN YOU TOUCH, REMOVE OR INSTALL PARTS. DAMAGE CAN OCCUR FROM ELECTROSTATIC DISCHARGE. NOTE: This SB is intended for use on a PDCU A that is removed from the PPDB and off the aircraft. (1) Place the PDCU A card on the ESD mat. (2) Connect a ground lead to the ground socket of the test-set and a suitable earth point. (3) Connect the DC plug from the Power Supply Unit (PSU) to the 48 volts socket on the side of the test-set. (4) Connect mains lead from the PSU to an applicable a.c. outlet and apply mains power. 

### SERVICE BULLETIN Number 80232190-24-01

Initial Issue : Aug 13/09 

## 80232190-24-01 Revision Date : Aug 13/09 Page 2 of 9 ©: Goodrich Power Systems - 2009 All rights reserved.(5) Push the "TEST" button on the test-set, make sure the 40 RED LEDs illuminate. NOTE: If, the RED LEDs do not illuminate the test set is damaged. B. Procedure (1) Plug the board into the PDCU A connector on the test-set (Ref. Fig. 1)
. NOTE: The top side of the board (the side with the main connector) must face you. (2) Connect a ground lead to the socket "GROUND" on the test-set. Use a crocodile clip and connect the ground lead to the thermal plane of the PDCU A card (Ref. Fig. 2)
. (3) Record serial number of the PDCU A card and the test-set on the Results sheet. (4) Push the "TEST" button on the test-set, record the status of all the LEDs on the Result Sheet Appendix 1. NOTE: This is to collect data for possible future enhancements. (5) Release the test button. (6) Push the "TEST" button on the test-set, and make sure the circuit LEDs listed (Ref. Table 1) are all GREEN. Table 1 LED Pass PDCU A Circuit No. Function RED LED GREEN LED Result 1 BUS TIE MAN OFF ON PASS 2 BTC1 A ST OFF ON PASS 3 GLC3 A ST OFF ON PASS 4 GLC2 A ST OFF ON PASS 5 GLC1 A ST OFF ON PASS 14 BTC2 A ST OFF ON PASS 17 STBY PUMP ON OFF ON PASS 18 BTC3 A ST OFF ON PASS 19 HSCB_SBEP ON OFF ON PASS (7) Release the test button. (8) If, a RED LED is ON or a GREEN LED is OFF (Ref. Table 1) , the PDCU A card must be returned to Goodrich Power systems. C. Completion (1) Disconnect and remove the ground lead and croc odile clip from the thermal plane of the PDCU A card. (2) Remove the PDCU A card from the test-set. (3) Remove a.c. mains power and disconnect the PSU from the a.c. outlet.. (4) Disconnect the PSU from the 48 volts socket on the side of the test-set. 

### SERVICE BULLETIN Number 80232190-24-01

Initial Issue : Aug 13/09 

## 80232190-24-01 Revision Date : Aug 13/09 Page 3 of 9 ©: Goodrich Power Systems - 2009 All rights reserved.(5) Remove the ground lead from the ground socket of the test-set and the earth point.

PDCU A PDCU B GCU PDCU A PDCU B GCU

PDCU A PDCU B GCU

PDCU A PDCU B GCU 01 02 03 04 05 06 07 08 09 10

11 12 13 14 15 16 17 18 19 20

21 22 23 24 25 26 27 28 29 30

31 32 33 34 35 37 36 38 39 40 PDCU A PDCU B GC U

G LC 1_A_S T

WOW

_A _R WOW

_A _L

BATT_H EAT ER CA B IN_ NO T

_ S H E D

B T C3_B _S T

AP UC1 _B_S T

ST ART M O D E_B_ ST G P C1 _B_S T SPAR E _C O N T_CT L B C2_ B_ ST S PAR E_OG 1

RAT

_ W O W R EADY 2L O AD B

ST A R T M O D E TEST GRO UND

G LC 4_A_S T GE N2_ O C GCS

_ ON BUS_

T I E_ MAN G L C4_B _S T STAR T M O D E_A_ ST STAR T M O D E_A_ ST BC 1_ B_ ST GL C_A U X B T C 1_A_S T G LC 3_B _S T

STAR T G LC3 _A_S T G A LL EY_N O T _SHE D TR I P AP UC1_A_ ST GA LL EY

_ O FF FA N_ OFF EXT

_ P W R_ O N G E N1_O C S G

_ RDY2LD G L C2_A_S T B T C 1_B _S T R EAD Y2 L O AD A B C 1_A_S T SG

_ O C S PAR E

G P C1_A_S T BAT 1_ G P

_ O C_ I N G P C 2_B _S T G P C1_A_S T B T C 2_B _S T HSCB

_ SBEP

_ O N GL C2_ B

_ S T B T C3 _A_S T CA BIN_O FF SPA R E

_ OG 0 GE N3_ O C ST BY_ PU MP_O N WO W_B_L B T C 2_A_S T IS O L

_T IE D

WOW

_ B_R EME R G

_ IS O L _B_S T GE N4_ O C B_ G P U_W O W G L C1_B _S T

GE N O FF BAT 1_ G P_O C_ O U T GE N O C

D7X_SB_2401_0002_01_0 Test set TE2-0658 Figure 1 

### SERVICE BULLETIN Number 80232190-24-01

Initial Issue : Aug 13/09 

## 80232190-24-01 Revision Date : Aug 13/09 Page 4 of 9 ©: Goodrich Power Systems - 2009 All rights reserved.D7X_SB_2401_0001_01 ESD plane

Hypertac

PDCU A Figure 2 

### SERVICE BULLETIN Number 80232190-24-01

Initial Issue : Aug 13/09 

## 80232190-24-01 Revision Date : Aug 13/09 Page 5 of 9 ©: Goodrich Power Systems - 2009 All rights reserved.INTENTIONALLY BLANK 

### SERVICE BULLETIN Number 80232190-24-01

Initial Issue : Aug 13/09 

## 80232190-24-01 Revision Date : Aug 13/09 Page 6 of 9 ©: Goodrich Power Systems - 2009 All rights reserved.Appendix 1 A. Complete the Results Table. NOTE: * Delete as necessary. Table 2 Results Table Board type Serial No. TE2-0658, Serial No.

Circuit No. Function RED LED GREEN LED 1 PDCU A: BUS_TIE_MAN PDCU B: GLC4_B_ST ON* / OFF* ON* / OFF* 2 PDCU A: BTC1_A_ST PDCU B: GLC3_B_ST GCU: STAR ON* / OFF* ON* / OFF*
3 PDCU A: GLC3_A_ST PDCU B: GALLEY_NOT_SHED GCU: TRIP ON* / OFF* ON* / OFF*
4 PDCU A: GLC2_A_ST PDCU B: BTC1_B_ST GCU: READY2LOADA ON* / OFF* ON* / OFF*
5 PDCU A: GLC1_A_ST PDCU B: CABIN_NOT_SHED GCU: READY2LOADB ON* / OFF* ON* / OFF*
6 PDCU A: BC1_A_ST PDCU B: SG_OC GCU: SPARE ON* / OFF* ON* / OFF*
7 PDCU A: EXT_PWR_ON PDCU B: GEN1_OC GCU: SG_RDY2LD ON* / OFF* ON* / OFF*
8 PDCU A: APUC1_A_ST PDCU B: GALLEY_OFF GCU: FAN_OFF ON* / OFF* ON* / OFF*
9 PDCU A: STARTMODE_A_ST PDCU B: BC1_B_ST GCU: GLC_AUX ON* / OFF* ON* / OFF*
10 PDCU A: GLC4_A_ST PDCU B: GEN2_OC GCU: GCS_ON ON* / OFF* ON* / OFF* 

### SERVICE BULLETIN Number 80232190-24-01

Initial Issue : Aug 13/09 

## 80232190-24-01 Revision Date : Aug 13/09 Page 7 of 9 ©: Goodrich Power Systems - 2009 All rights reserved.Circuit No. Function RED LED GREEN LED 11 PDCU B: GPC2_B_ST ON* / OFF* ON* / OFF* 12 PDCU B: BTC2_B_ST ON* / OFF* ON* / OFF* 13 PDCU A: SPARE_OG0 PDCU B: GEN3_OC ON* / OFF* ON* / OFF* 14 PDCU A: BTC2_A_ST PDCU B: ISOL_TIED ON* / OFF* ON* / OFF* 15 PDCU A: WOW_A_L PDCU B: APUC1_B_ST ON* / OFF* ON* / OFF* 16 PDCU A: WOW_A_R PDCU B: BTC3_B_ST ON* / OFF* ON* / OFF* 17 PDCU A: STBY_PUMP_ON PDCU B: WOW_B_L ON* / OFF* ON* / OFF* 18 PDCU A: BTC3_A_ST PDCU B: CABIN_OFF ON* / OFF* ON* / OFF* 19 PDCU A: HSCB_SBEP_ON PDCU B: GLC2_B_ST ON* / OFF* ON* / OFF* 20 PDCU A: GPC1_A_ST PDCU B: BAT1_GP_OC_IN ON* / OFF* ON* / OFF* 21 PDCU B: SPARE_OG1 ON* / OFF* ON* / OFF* 22 PDCU B: BC2_B_ST ON* / OFF* ON* / OFF* 23 PDCU B: SPARE_CONT_CTL ON* / OFF* ON* / OFF* 24 PDCU B: GPC1_B_ST ON* /OFF* ON* /OFF* 25 PDCU B: STARTMODE_B_ST ON* / OFF* ON* / OFF* 26 PDCU B: GLC1_B_ST ON* / OFF* ON* / OFF* 27 PDCU B: B_GPU_WOW ON* / OFF* ON* / OFF* 28 PDCU B: GEN4_OC ON* / OFF* ON* / OFF* 29 PDCU B: EMERG_ISOL_B_ST ON* / OFF* ON* / OFF* 30 PDCU B: WOW_B_R ON* / OFF* ON* / OFF* 35 PDCU B: RAT_WOW ON* / OFF* ON* / OFF* 36 PDCU A: BATT_HEATER ON* / OFF* ON* / OFF* 37 GCU: STARTMODE ON* / OFF* ON* / OFF* 38 GCU: GENOFF ON* / OFF* ON* / OFF* 

### SERVICE BULLETIN Number 80232190-24-01

Initial Issue : Aug 13/09 

## 80232190-24-01 Revision Date : Aug 13/09 Page 8 of 9 ©: Goodrich Power Systems - 2009 All rights reserved.Circuit No. Function RED LED GREEN LED 39 PDCU B: BAT1_GP_OC_OUT GCU: GENOC ON* / OFF* ON* / OFF* 

### SERVICE BULLETIN Number 80232190-24-01

Initial Issue : Aug 13/09 

## 80232190-24-01 Revision Date : Aug 13/09 Page 9 of 9 ©: Goodrich Power Systems - 2009 All rights reserved.Goodrich Power Systems Westfi eld Road Pitstone LU7 9GT England 0044 1296 663000 

## SERVICE BULLETIN STANDARD 

### ELECTRICAL POWER - PDCU B PT. NO. 80232191 AND 80231925/S3 INSPECTION/ CHECK OF THE TRANSIENT SUPPRESSION DIODES INSTALLED

INITIAL ISSUE OF SERVICE BULLETIN 80232191-24-01 AIRCRAFT APPLICABILITY DASSAULT FALCON 7X 1. Instructions A. The Service Bulletin was written under EASA Approval No. UK.145.00858. B. The technical content of this document is approved under the authority of DOA No. EASA.21J.051.

Copyright in this Service Bulletin and associated documents and drawings belongs to Goodrich Power Systems and all rights are reserved. No reproduction of all or part of this Service Bulletin shall be made without the prior written consent of Goodrich Power Systems. This document contains information that may be con fi dential and its disclosure to others requires the written consent of Goodrich Power Systems. 

### SERVICE BULLETIN Number 80232191-24-01INTENTIONALLY BLANK 

### SERVICE BULLETIN Number 80232191-24-011. Planning Information A. Effectivity (1) This Service Bulletin (SB) applies to the Goodrich Corporation PDCU B Cards Pt. No. 80232191 and 80231925/S3 installed in the Left and Right Primary Power Distribution Box (PPDB), installed on the Falcon 7X aircraft. B. Concurrent Requirements (1) None. C. Reason (1) Dassault Aviation has performed an analysis of aircraft-level effects associated with degradation of 33 Volt Transient Voltage Suppression (TVS) Diode in the Primary Distribution Control Unit (PDCU) and Generator Control Unit (GCU) printed circuit board assemblies. D. Description (1) The TVS Diodes have been categorised based on the severity of the effect. This SB gives the procedures necessary to identify the degradation of “Priority 1 and 2” TVS Diodes. E. Compliance recommendation (1) At the next removal of a PDCU B card. F. Approval (1) The technical content of this document is approved under the authority of DOA No. EASA.21J.051. G. Manpower (1) 0.25 Man hours H. Weight and Balance (1) None. I. Electrical Load Data (1) None. J. Software Accomplishment Summary (1) Not applicable K. References (1) This SB was written using Goodrich Engineering Report PG0900400ED and rework drg 80232215 as source data. L. Other Publications Affected – Goodrich ACMM for the PDCU-B CARD ASSEMBLY Part No. 80232190, ATA No. 24-61-09 will be revised to include the data contained in this SB. – Goodrich CMM for the Left PPDB, Part No. SW02101, ATA No. 24-61-01 will be revised to reference the data contained in this SB – Goodrich CMM for the Right PPDB, Part No. SW02201, ATA No. 24-61-02 will be revised to reference the data contained in this SB M. Interchangeability or Intermixability of Parts (1) Not applicable 

### SERVICE BULLETIN Number 80232191-24-01

Initial Issue : Aug 1 3/09 

## 80232191-24-01 Revision Date : Aug 1 3/09 Page 1 of 9 ©: Goodrich Power Systems - 2009 All rights reserved.2. Material Information A. Material - Price and Availability (1) Not Applicable. B. Industry Support Program (1) Not Applicable. C. Material Necessary for each Component/Engine (1) Not Applicable. D. Spare Parts Availability (1) Not Applicable. E. Re-identi fi ed Parts (1) None. F. Tooling - Price and Availability (1) The tools given below are necessary for this SB and are to be procured from the sources given. Prices and lead times for Goodrich tools are available on request. Qty Part Number Source Keyword

1 - Commercially Available ESD Surface mat and wrist band 1 TE2-0658 Goodrich Power Systems Falcon multi-channel transorb tester (33V) 1 - Commercially Available Power supply 48V D.C. 2 - Locally Made Ground lead with 4mm plug terminations 2 - Commercially Available Crocodile clip 3. Accomplishment Instructions A. General CAUTION: THE SPDB CONTAINS ITEMS THAT ARE ELECTROSTATIC-DISCHARGE SENSITIVE (ESDS). OBEY APPROVED INDUSTRY PRECAUTIONS WHEN YOU TOUCH, REMOVE OR INSTALL PARTS. DAMAGE CAN OCCUR FROM ELECTROSTATIC DISCHARGE. NOTE: This SB is intended for use on a PDCU B that is removed from the PPDB and off the aircraft. (1) Place the PDCU B card on the ESD mat. (2) Connect a ground lead to the ground socket of the test-set and a suitable earth point. (3) Connect the DC plug from the Power Supply Unit (PSU) to the 48 volts socket on the side of the test-set. (4) Connect mains lead from the PSU to an applicable a.c. outlet and apply mains power. 

### SERVICE BULLETIN Number 80232191-24-01

Initial Issue : Aug 1 3/09 

## 80232191-24-01 Revision Date : Aug 1 3/09 Page 2 of 9 ©: Goodrich Power Systems - 2009 All rights reserved.(5) Push the "TEST" button on the test-set, make sure the 40 RED LEDs illuminate. NOTE: If, the RED LEDs do not illuminate the test set is damaged. B. Procedure (1) Plug the board into the PDCU B connector on the test-set (Ref. Fig. 1)
. NOTE: The top side of the board (the side with the main connector) must face you. (2) Connect a ground lead to the socket "GROUND" on the test-set. Use a crocodile clip and connect the ground lead to the thermal plane of the PDCU B card (Ref. Fig. 2)
. (3) Record serial number of the PDCU B card and the test-set on the Results sheet. (4) Push the "TEST" button on the test-set, record the status of all the LEDs on the Result Sheet Appendix 1. NOTE: This is to collect data for possible future enhancements. (5) Release the test button. (6) Push the "TEST" button on the test-set, and make sure the circuit LEDs listed (Ref. Table 1) are all GREEN. Table 1 LED Pass PDCU B Circuit No. Function RED LED GREEN LED Result 2 GLC3 B ST OFF ON PASS 4 BTC1 B ST OFF ON PASS 7 GEN1 OC OFF ON PASS 10 GEN2 OC OFF ON PASS 12 BTC2 B ST OFF ON PASS 13 GEN3 OC OFF ON PASS 14 ISOL TIED OFF ON PASS 16 BTC3 B ST OFF ON PASS 19 GLC1 B ST OFF ON PASS 20 BAT1 GP OC IN OFF ON PASS 26 GLC1 B ST OFF ON PASS 29 EMERG ISOL B STATUS OFF ON PASS 35 RAT WOW OFF ON PASS 39 BAT1 GP OC OUT OFF ON PASS (7) Release the test button. 

### SERVICE BULLETIN Number 80232191-24-01

Initial Issue : Aug 1 3/09 

## 80232191-24-01 Revision Date : Aug 1 3/09 Page 3 of 9 ©: Goodrich Power Systems - 2009 All rights reserved.(8) If, a RED LED is ON or a GREEN LED is OFF (Ref. Table 1) , the PDCU B card must be returned to Goodrich Power systems. C. Completion (1) Disconnect and remove the ground lead and croc odile clip from the thermal plane of the PDCU B card. (2) Remove the PDCU B card from the test-set. (3) Remove a.c. mains power and disconnect the PSU from the a.c. outlet.. (4) Disconnect the PSU from the 48 volts socket on the side of the test-set. (5) Remove the ground lead from the ground socket of the test-set and the earth point. 

### SERVICE BULLETIN Number 80232191-24-01

Initial Issue : Aug 1 3/09 

## 80232191-24-01 Revision Date : Aug 1 3/09 Page 4 of 9 ©: Goodrich Power Systems - 2009 All rights reserved.PDCU A PDCU B GCU PDCU A PDCU B GCU

PDCU A PDCU B GCU

PDCU A PDCU B GCU 01 02 03 04 05 06 07 08 09 10

11 12 13 14 15 16 17 18 19 20

21 22 23 24 25 26 27 28 29 30

31 32 33 34 35 37 36 38 39 40 PDCU A PDCU B GC U

G LC 1_A_S T

WOW

_A _R WOW

_A _L

BATT_H EAT ER CA B IN_ NO T

_ S H E D

B T C3_B _S T

AP UC1 _B_S T

ST ART M O D E_B_ ST G P C1 _B_S T SPAR E _C O N T_CT L B C2_ B_ ST S PAR E_OG 1

RAT

_ W O W R EADY 2L O AD B

ST A R T M O D E TEST GRO UND

G LC 4_A_S T GE N2_ O C GCS

_ ON BUS_

T I E_ MAN G L C4_B _S T STAR T M O D E_A_ ST STAR T M O D E_A_ ST BC 1_ B_ ST GL C_A U X B T C 1_A_S T G LC 3_B _S T

STAR T G LC3 _A_S T G A LL EY_N O T _SHE D TR I P AP UC1_A_ ST GA LL EY

_ O FF FA N_ OFF EXT

_ P W R_ O N G E N1_O C S G

_ RDY2LD G L C2_A_S T B T C 1_B _S T R EAD Y2 L O AD A B C 1_A_S T SG

_ O C S PAR E

G P C1_A_S T BAT 1_ G P

_ O C_ I N G P C 2_B _S T G P C1_A_S T B T C 2_B _S T HSCB

_ SBEP

_ O N GL C2_ B

_ S T B T C3 _A_S T CA BIN_O FF SPA R E

_ OG 0 GE N3_ O C ST BY_ PU MP_O N WO W_B_L B T C 2_A_S T IS O L

_T IE D

WOW

_ B_R EME R G

_ IS O L _B_S T GE N4_ O C B_ G P U_W O W G L C1_B _S T

GE N O FF BAT 1_ G P_O C_ O U T GE N O C

D7X_SB_2401_0002_01_0 Test set TE2-0658 Figure 1 

### SERVICE BULLETIN Number 80232191-24-01

Initial Issue : Aug 1 3/09 

## 80232191-24-01 Revision Date : Aug 1 3/09 Page 5 of 9 ©: Goodrich Power Systems - 2009 All rights reserved.D7X_SB_2401_0001_01 ESD plane

Hypertac

PDCU B Figure 2
INTENTIONALLY BLANK 

### SERVICE BULLETIN Number 80232191-24-01

Initial Issue : Aug 1 3/09 

## 80232191-24-01 Revision Date : Aug 1 3/09 Page 6 of 9 ©: Goodrich Power Systems - 2009 All rights reserved.Appendix 1 A. Complete the Results Table. NOTE: * Delete as necessary. Table 2 Results Table Board type Serial No. TE2-0658, Serial No.

Circuit No. Function RED LED GREEN LED 1 PDCU A: BUS_TIE_MAN PDCU B: GLC4_B_ST ON* / OFF* ON* / OFF* 2 PDCU A: BTC1_A_ST PDCU B: GLC3_B_ST GCU: STAR ON* / OFF* ON* / OFF*
3 PDCU A: GLC3_A_ST PDCU B: GALLEY_NOT_SHED GCU: TRIP ON* / OFF* ON* / OFF*
4 PDCU A: GLC2_A_ST PDCU B: BTC1_B_ST GCU: READY2LOADA ON* / OFF* ON* / OFF*
5 PDCU A: GLC1_A_ST PDCU B: CABIN_NOT_SHED GCU: READY2LOADB ON* / OFF* ON* / OFF*
6 PDCU A: BC1_A_ST PDCU B: SG_OC GCU: SPARE ON* / OFF* ON* / OFF*
7 PDCU A: EXT_PWR_ON PDCU B: GEN1_OC GCU: SG_RDY2LD ON* / OFF* ON* / OFF*
8 PDCU A: APUC1_A_ST PDCU B: GALLEY_OFF GCU: FAN_OFF ON* / OFF* ON* / OFF*
9 PDCU A: STARTMODE_A_ST PDCU B: BC1_B_ST GCU: GLC_AUX ON* / OFF* ON* / OFF*
10 PDCU A: GLC4_A_ST PDCU B: GEN2_OC GCU: GCS_ON ON* / OFF* ON* / OFF* 

### SERVICE BULLETIN Number 80232191-24-01

Initial Issue : Aug 1 3/09 

## 80232191-24-01 Revision Date : Aug 1 3/09 Page 7 of 9 ©: Goodrich Power Systems - 2009 All rights reserved.Circuit No. Function RED LED GREEN LED 11 PDCU B: GPC2_B_ST ON* / OFF* ON* / OFF* 12 PDCU B: BTC2_B_ST ON* / OFF* ON* / OFF* 13 PDCU A: SPARE_OG0 PDCU B: GEN3_OC ON* / OFF* ON* / OFF* 14 PDCU A: BTC2_A_ST PDCU B: ISOL_TIED ON* / OFF* ON* / OFF* 15 PDCU A: WOW_A_L PDCU B: APUC1_B_ST ON* / OFF* ON* / OFF* 16 PDCU A: WOW_A_R PDCU B: BTC3_B_ST ON* / OFF* ON* / OFF* 17 PDCU A: STBY_PUMP_ON PDCU B: WOW_B_L ON* / OFF* ON* / OFF* 18 PDCU A: BTC3_A_ST PDCU B: CABIN_OFF ON* / OFF* ON* / OFF* 19 PDCU A: HSCB_SBEP_ON PDCU B: GLC2_B_ST ON* / OFF* ON* / OFF* 20 PDCU A: GPC1_A_ST PDCU B: BAT1_GP_OC_IN ON* / OFF* ON* / OFF* 21 PDCU B: SPARE_OG1 ON* / OFF* ON* / OFF* 22 PDCU B: BC2_B_ST ON* / OFF* ON* / OFF* 23 PDCU B: SPARE_CONT_CTL ON* / OFF* ON* / OFF* 24 PDCU B: GPC1_B_ST ON* /OFF* ON* /OFF* 25 PDCU B: STARTMODE_B_ST ON* / OFF* ON* / OFF* 26 PDCU B: GLC1_B_ST ON* / OFF* ON* / OFF* 27 PDCU B: B_GPU_WOW ON* / OFF* ON* / OFF* 28 PDCU B: GEN4_OC ON* / OFF* ON* / OFF* 29 PDCU B: EMERG_ISOL_B_ST ON* / OFF* ON* / OFF* 30 PDCU B: WOW_B_R ON* / OFF* ON* / OFF* 35 PDCU B: RAT_WOW ON* / OFF* ON* / OFF* 36 PDCU A: BATT_HEATER ON* / OFF* ON* / OFF* 37 GCU: STARTMODE ON* / OFF* ON* / OFF* 38 GCU: GENOFF ON* / OFF* ON* / OFF* 

### SERVICE BULLETIN Number 80232191-24-01

Initial Issue : Aug 1 3/09 

## 80232191-24-01 Revision Date : Aug 1 3/09 Page 8 of 9 ©: Goodrich Power Systems - 2009 All rights reserved.Circuit No. Function RED LED GREEN LED 39 PDCU B: BAT1_GP_OC_OUT GCU: GENOC ON* / OFF* ON* / OFF* 

### SERVICE BULLETIN Number 80232191-24-01

Initial Issue : Aug 1 3/09 

## 80232191-24-01 Revision Date : Aug 1 3/09 Page 9 of 9 ©: Goodrich Power Systems - 2009 All rights reserved.Goodrich Power Systems Westfi eld Road Pitstone LU7 9GT England 0044 1296 663000 

## SERVICE BULLETIN STANDARD 

### ELECTRICAL POWER - GCU A PT. NO. 80232192 AND 80231894/S2 INSPECTION/CHECK OF THE TRANSIENT SUPPRESSION DIODES INSTALLED

INITIAL ISSUE OF SERVICE BULLETIN 80232192-24-01 AIRCRAFT APPLICABILITY DASSAULT FALCON 7X 1. Instructions A. The Service Bulletin was written under EASA Approval No. UK.145.00858. B. The technical content of this document is approved under the authority of DOA No. EASA.21J.051.

Copyright in this Service Bulletin and associated documents and drawings belongs to Goodrich Power Systems and all rights are reserved. No reproduction of all or part of this Service Bulletin shall be made without the prior written consent of Goodrich Power Systems. This document contains information that may be con fi dential and its disclosure to others requires the written consent of Goodrich Power Systems. 

### SERVICE BULLETIN Number 80232192-24-01INTENTIONALLY BLANK 

### SERVICE BULLETIN Number 80232192-24-011. Planning Information A. Effectivity (1) This Service Bulletin (SB) applies to the Goodrich Corporation GCU Cards Pt. No. 80232192 and 80231894/S2 installed in the Left and Right Primary Power Distribution Box (PPDB), installed on the Falcon 7X aircraft. B. Concurrent Requirements (1) None. C. Reason (1) Dassault Aviation has performed an analysis of aircraft-level effects associated with degradation of 33 Volt Transient Voltage Suppression (TVS) Diode in the Primary Distribution Control Unit (PDCU) and Generator Control Unit (GCU) printed circuit board assemblies. D. Description (1) The TVS Diodes have been categorised based on the severity of the effect. This SB gives the procedures necessary to identify the degradation of “Priority 1 and 2” TVS Diodes. E. Compliance recommendation (1) At the next removal of a GCU card. F. Approval (1) The technical content of this document is approved under the authority of DOA No. EASA.21J.051. G. Manpower (1) 0.25 Man hours H. Weight and Balance (1) None. I. Electrical Load Data (1) None. J. Software Accomplishment Summary (1) Not applicable K. References (1) This SB was written using Goodrich Engineering Report PG0900400ED and rework drg 80232216 as source data. L. Other Publications Affected – Goodrich ACMM for the GCU CARD ASSEMBLY Part No. 80232192, ATA No. 24-61-52 will be revised to include the data contained in this SB. – Goodrich CMM for the Left PPDB, Part No. SW02101, ATA No. 24-61-01 will be revised to reference the data contained in this SB – Goodrich CMM for the Right PPDB, Part No. SW02201, ATA No. 24-61-02 will be revised to reference the data contained in this SB M. Interchangeability or Intermixability of Parts (1) Not applicable 

### SERVICE BULLETIN Number 80232192-24-01

Initial Issue : Aug 13/09 

## 80232192-24-01 Revision Date : Aug 13/09 Page 1 of 9 ©: Goodrich Power Systems - 2009 All rights reserved.2. Material Information A. Material - Price and Availability (1) Not Applicable. B. Industry Support Program (1) Not Applicable. C. Material Necessary for each Component/Engine (1) Not Applicable. D. Spare Parts Availability (1) Not Applicable. E. Re-identi fi ed Parts (1) None. F. Tooling - Price and Availability (1) The tools given below are necessary for this SB and are to be procured from the sources given. Prices and lead times for Goodrich tools are available on request. Qty Part Number Source Keyword

1 - Commercially Available ESD Surface mat and wrist band 1 TE2-0658 Goodrich Power Systems Falcon multi-channel transorb tester (33V) 1 - Commercially Available Power supply 48V D.C. 2 - Locally Made Ground lead with 4mm plug terminations 2 - Commercially Available Crocodile clip 3. Accomplishment Instructions A. General CAUTION: THE SPDB CONTAINS ITEMS THAT ARE ELECTROSTATIC-DISCHARGE SENSITIVE (ESDS). OBEY APPROVED INDUSTRY PRECAUTIONS WHEN YOU TOUCH, REMOVE OR INSTALL PARTS. DAMAGE CAN OCCUR FROM ELECTROSTATIC DISCHARGE. NOTE: This SB is intended for use on a GCU that is removed from the PPDB and off the aircraft. (1) Place the GCU card on the ESD mat. (2) Connect a ground lead to the ground socket of the test-set and a suitable earth point. (3) Connect the DC plug from the Power Supply Unit (PSU) to the 48 volts socket on the side of the test-set. (4) Connect mains lead from the PSU to an applicable a.c. outlet and apply mains power. 

### SERVICE BULLETIN Number 80232192-24-01

Initial Issue : Aug 13/09 

## 80232192-24-01 Revision Date : Aug 13/09 Page 2 of 9 ©: Goodrich Power Systems - 2009 All rights reserved.(5) Push the "TEST" button on the test-set, make sure the 40 RED LEDs illuminate. NOTE: If, the RED LEDs do not illuminate the test set is damaged. B. Procedure (1) Plug the board into the GCU connector on the test-set (Ref. Fig. 1)
. NOTE: The top side of the board (the side with the main connector) must face you. (2) Connect a ground lead to the socket "GROUND" on the test-set. Use a crocodile clip and connect the ground lead to the thermal plane of the GCU card (Ref. Fig. 2)
. (3) Record serial number of the GCU card and the test-set on the Results sheet. (4) Push the "TEST" button on the test-set, record the status of all the LEDs on the Result Sheet Appendix 1. NOTE: This is to collect data for possible future enhancements. (5) Release the test button. (6) Push the "TEST" button on the test-set, and make sure the circuit LEDs listed (Ref. Table 1) are all GREEN. Table 1 LED Pass GCU Circuit No. Function RED LED GREEN LED Result 9 GLC3 AUX OFF ON PASS 39 GENOC OFF ON PASS (7) Release the test button. (8) If, a RED LED is ON or a GREEN LED is OFF (Ref. Table 1) the GCU card must be returned to Goodrich Power systems. C. Completion (1) Disconnect and remove the ground lead and crocodile clip from the thermal plane of the GCU card. (2) Remove the GCU card from the test-set. (3) Remove a.c. mains power and disconnect the PSU from the a.c. outlet. (4) Disconnect the PSU from the 48 volts socket on the side of the test-set. (5) Remove the ground lead from the ground socket of the test-set and the earth point. 

### SERVICE BULLETIN Number 80232192-24-01

Initial Issue : Aug 13/09 

## 80232192-24-01 Revision Date : Aug 13/09 Page 3 of 9 ©: Goodrich Power Systems - 2009 All rights reserved.PDCU A PDCU B GCU PDCU A PDCU B GCU

PDCU A PDCU B GCU

PDCU A PDCU B GCU 01 02 03 04 05 06 07 08 09 10

11 12 13 14 15 16 17 18 19 20

21 22 23 24 25 26 27 28 29 30

31 32 33 34 35 37 36 38 39 40 PDCU A PDCU B GC U

G LC 1_A_S T

WOW

_A _R WOW

_A _L

BATT_H EAT ER CA B IN_ NO T

_ S H E D

B T C3_B _S T

AP UC1 _B_S T

ST ART M O D E_B_ ST G P C1 _B_S T SPAR E _C O N T_CT L B C2_ B_ ST S PAR E_OG 1

RAT

_ W O W R EADY 2L O AD B

ST A R T M O D E TEST GRO UND

G LC 4_A_S T GE N2_ O C GCS

_ ON BUS_

T I E_ MAN G L C4_B _S T STAR T M O D E_A_ ST STAR T M O D E_A_ ST BC 1_ B_ ST GL C_A U X B T C 1_A_S T G LC 3_B _S T

STAR T G LC3 _A_S T G A LL EY_N O T _SHE D TR I P AP UC1_A_ ST GA LL EY

_ O FF FA N_ OFF EXT

_ P W R_ O N G E N1_O C S G

_ RDY2LD G L C2_A_S T B T C 1_B _S T R EAD Y2 L O AD A B C 1_A_S T SG

_ O C S PAR E

G P C1_A_S T BAT 1_ G P

_ O C_ I N G P C 2_B _S T G P C1_A_S T B T C 2_B _S T HSCB

_ SBEP

_ O N GL C2_ B

_ S T B T C3 _A_S T CA BIN_O FF SPA R E

_ OG 0 GE N3_ O C ST BY_ PU MP_O N WO W_B_L B T C 2_A_S T IS O L

_T IE D

WOW

_ B_R EME R G

_ IS O L _B_S T GE N4_ O C B_ G P U_W O W G L C1_B _S T

GE N O FF BAT 1_ G P_O C_ O U T GE N O C

D7X_SB_2401_0002_01_0 Test set TE2-0658 Figure 1 

### SERVICE BULLETIN Number 80232192-24-01

Initial Issue : Aug 13/09 

## 80232192-24-01 Revision Date : Aug 13/09 Page 4 of 9 ©: Goodrich Power Systems - 2009 All rights reserved.D7X_SB_2401_0001_01 ESD plane

Hypertac

GCU Figure 2 

### SERVICE BULLETIN Number 80232192-24-01

Initial Issue : Aug 13/09 

## 80232192-24-01 Revision Date : Aug 13/09 Page 5 of 9 ©: Goodrich Power Systems - 2009 All rights reserved.INTENTIONALLY BLANK 

### SERVICE BULLETIN Number 80232192-24-01

Initial Issue : Aug 13/09 

## 80232192-24-01 Revision Date : Aug 13/09 Page 6 of 9 ©: Goodrich Power Systems - 2009 All rights reserved.Appendix 1 A. Complete the Results Table. NOTE: * Delete as necessary. Table 2 Results Table Board type Serial No. TE2-0658, Serial No.

Circuit No. Function RED LED GREEN LED 1 PDCU A: BUS_TIE_MAN PDCU B: GLC4_B_ST ON* / OFF* ON* / OFF* 2 PDCU A: BTC1_A_ST PDCU B: GLC3_B_ST GCU: STAR ON* / OFF* ON* / OFF*
3 PDCU A: GLC3_A_ST PDCU B: GALLEY_NOT_SHED GCU: TRIP ON* / OFF* ON* / OFF*
4 PDCU A: GLC2_A_ST PDCU B: BTC1_B_ST GCU: READY2LOADA ON* / OFF* ON* / OFF*
5 PDCU A: GLC1_A_ST PDCU B: CABIN_NOT_SHED GCU: READY2LOADB ON* / OFF* ON* / OFF*
6 PDCU A: BC1_A_ST PDCU B: SG_OC GCU: SPARE ON* / OFF* ON* / OFF*
7 PDCU A: EXT_PWR_ON PDCU B: GEN1_OC GCU: SG_RDY2LD ON* / OFF* ON* / OFF*
8 PDCU A: APUC1_A_ST PDCU B: GALLEY_OFF GCU: FAN_OFF ON* / OFF* ON* / OFF*
9 PDCU A: STARTMODE_A_ST PDCU B: BC1_B_ST GCU: GLC_AUX ON* / OFF* ON* / OFF*
10 PDCU A: GLC4_A_ST PDCU B: GEN2_OC GCU: GCS_ON ON* / OFF* ON* / OFF* 

### SERVICE BULLETIN Number 80232192-24-01

Initial Issue : Aug 13/09 

## 80232192-24-01 Revision Date : Aug 13/09 Page 7 of 9 ©: Goodrich Power Systems - 2009 All rights reserved.Circuit No. Function RED LED GREEN LED 11 PDCU B: GPC2_B_ST ON* / OFF* ON* / OFF* 12 PDCU B: BTC2_B_ST ON* / OFF* ON* / OFF* 13 PDCU A: SPARE_OG0 PDCU B: GEN3_OC ON* / OFF* ON* / OFF* 14 PDCU A: BTC2_A_ST PDCU B: ISOL_TIED ON* / OFF* ON* / OFF* 15 PDCU A: WOW_A_L PDCU B: APUC1_B_ST ON* / OFF* ON* / OFF* 16 PDCU A: WOW_A_R PDCU B: BTC3_B_ST ON* / OFF* ON* / OFF* 17 PDCU A: STBY_PUMP_ON PDCU B: WOW_B_L ON* / OFF* ON* / OFF* 18 PDCU A: BTC3_A_ST PDCU B: CABIN_OFF ON* / OFF* ON* / OFF* 19 PDCU A: HSCB_SBEP_ON PDCU B: GLC2_B_ST ON* / OFF* ON* / OFF* 20 PDCU A: GPC1_A_ST PDCU B: BAT1_GP_OC_IN ON* / OFF* ON* / OFF* 21 PDCU B: SPARE_OG1 ON* / OFF* ON* / OFF* 22 PDCU B: BC2_B_ST ON* / OFF* ON* / OFF* 23 PDCU B: SPARE_CONT_CTL ON* / OFF* ON* / OFF* 24 PDCU B: GPC1_B_ST ON* /OFF* ON* /OFF* 25 PDCU B: STARTMODE_B_ST ON* / OFF* ON* / OFF* 26 PDCU B: GLC1_B_ST ON* / OFF* ON* / OFF* 27 PDCU B: B_GPU_WOW ON* / OFF* ON* / OFF* 28 PDCU B: GEN4_OC ON* / OFF* ON* / OFF* 29 PDCU B: EMERG_ISOL_B_ST ON* / OFF* ON* / OFF* 30 PDCU B: WOW_B_R ON* / OFF* ON* / OFF* 35 PDCU B: RAT_WOW ON* / OFF* ON* / OFF* 36 PDCU A: BATT_HEATER ON* / OFF* ON* / OFF* 37 GCU: STARTMODE ON* / OFF* ON* / OFF* 38 GCU: GENOFF ON* / OFF* ON* / OFF* 

### SERVICE BULLETIN Number 80232192-24-01

Initial Issue : Aug 13/09 

## 80232192-24-01 Revision Date : Aug 13/09 Page 8 of 9 ©: Goodrich Power Systems - 2009 All rights reserved.Circuit No. Function RED LED GREEN LED 39 PDCU B: BAT1_GP_OC_OUT GCU: GENOC ON* / OFF* ON* / OFF* 

### SERVICE BULLETIN Number 80232192-24-01

Initial Issue : Aug 13/09 

## 80232192-24-01 Revision Date : Aug 13/09 Page 9 of 9 ©: Goodrich Power Systems - 2009 All rights reserved.