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# GOODRICH SERVICE BULLETIN Number 80232190--24-01 Goodrich Power Systems Westfield Road Pitstone LU7 9GT England 

### 0044 1296663000 

## SERVICE BULLETIN

STANDARD 

### ELECTRICAL POWER - PDCU A PT. NO. 80232190, 80231869/55, 80231869/56 AND 80231869/57 INSPECTION/CHECK OFTHE TRANSIENT SUPPRESSION DIODES INSTALLED

INITIAL ISSUE OF SERVICE BULLETIN 80232190-24-01 AIRCRAFT APPLICABILITY DASSAULT FALCON 7X

,_ Instructions A. The Service Bulletin was written under EASA Approval No. UK.145.00858. 8. The technical content of this document is approved under the authority of DOA No. EASA.21J.051.

Copyright in this Service Bulletin and associated documenlS 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 thai may be confidential and its disclosure to others requires \he wrillen consent of Goodrich Power Systems.

# ~- GOODRICH SERVICE BULLETIN Number 80232190-24-01



### INTENTIONAllY BLANK

### ..

### ~ 

# GOODRICH SERVICE BULLETIN Number 80232190-24-01 1_ Planning Information A. Effectivity (1) This Service Bulletin (88) applies to the Goodrich Corporation PDCU A Cards Pt No. 80232190, 80231869/5580231869/86 and 80231869/87 installed in the left and Right Primary Power Distribution Box (PPOS), 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 33Volt Transient Voltage Suppression (lVS) Diode inthe Primary Distribution Control Unit (PDCU) and Generator Control Unit (GCU) printed circuit board assemblies. D. Description (1) The TVS Diodes have been calegorised based on the severity of the effect. This 58 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 ofthis document isapproved underthe authority of DOA No. EASA.21J_051. G. Manpower (1) 0.25 Man hours H. Weight and Balance (1) None. 

### t. Electrical Load Data (1) None. J. Software Accomplishment Summary (1) Not applicable K. References (1) This S8 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, AlA No. 24-61-1)1 will be revised to reference the data contained in this S8 Goodrich CMM forthe Right PPOB. Part No. SW02201, AlA No. 24-61-02 will be revised to reference the data contained in this S8 M. Interchangeability or Intermixability of Parts (1) Not applicable Initial Issue :Aug 13/09 Revision Date :Aug 13/09 ©: Good~ch Power Sysl"ms •2009 AUrights reserved. 

# 80232190-24-01 Page 1 of9

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# GOODRICH SERVICE BULLETIN Number 80232190-24-01 2. Material Information A. Material - Price and Availability (1) NotApplicable. B. Industry Support Program (1) NotApplicable. C. Material Necessary for each Component/Engine (1) Not Applicable. D. Spare Parts Availability (1) NotApplicable. E. Re-idenlified Parts (1) None. E Tooling - Price and Availability (1) The lools given below aTe necessary for this 5B 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 ESO Surface mat and wrist band 

### 1 TE2-0658 Goodrich Power Falcon rnulti..ehannel Systems transom 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 S8 is intended for use on a POCU A that is removed from the PPOS and off the aircraft. (1) Place the PDCU A card on the ESD mal. (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) 10the 48 volts sockel on the side of the test-set. (4) Connect mains lead from the PSU to an applicable a.c. outlet and apply mains power.
Initial Issue : Aug 

### 13/09 Revision Date : Aug 

### 13/09 €:I:GooOric;hPower Svst£ms· 2009 Allrig~1Sresarvetl_ 

# 80232190-24-01 Page 2 of 9

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# GOODRICH SERVICE BULLETIN Number 80232190-24-01 (5) Push the 

### "TEsr button on the lest-set, make sure the 40 RED LEOs illuminate. NOTE: If, the RED LEOs do nol 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 lest-set. Use a crocodile clip and connect the ground lead 10the 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 LEOs on the Result Sheet Appendix 1. NOTE: This is to collect data for possible future enhancements. (5) Release the test button. (5) Push the 'TEST" button on the test-set, and make sure the circuit lEos 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 isON ora GREEN lED isOFF (Ref. Table 1),the PDCU A card must be returned to Goodrich Power systems. C. Completion (1) Disconnect and remove the ground lead and crocodile clip from the thermal plane ofthe PDCU A 

# ,,,,,d (2) Remove the POCU A card from the test-set. (3) Remove a.c. mains power and disconnect the PSU from the a.c. outle!.. (4) Disconnect the PSU from the 48 volts socket on the side of the lesl-sel. Initial Issue : Aug 13/09 Revision Date :Aug 13/09 ©: GoodMOI1Power Systems· 2009 All <ignIsreserved 

# 80232190-24-01 Page30f9

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# GOODRICH SERVICE BULLETIN Number 80232190-24-01 (5) Remove the ground lead from the ground socket of the lest-set and the earth point. 

# o GROUND GCU
PDCU B 

# o TEST PDCUA 

# FRo



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Test set TE2-06S8 Figure 1

j}: Goodrich Power Systems - 2009 All rights teSe<Ved. Initial Issue Revision Date : Aug 13/09

: Aug 

### 13/09 

## 80232190·24·01 Page 4 of 9

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# GOODRICH SERVICE BULLETIN Number 80232190-24-01

ESOplane



## pocu A Figure 2

@: Goodrich P<lwer Sysl2ms - 2009 All rights reserved. Initial Issue Revision Dale : Aug 13/09

:Aug 13/09 

## 80232190-24-01 Page 5 of 9Initial Issue :Aug 13/09

Revision Date :Aug 13/09 @: Goooricn Power System;. 2009 All'lgMs reserved. 

# ---

---- ----::': 

# - GOODRICH SERVICE BULLETIN Number 8023219{}--24-01

INTENTIONAllY BLANK



## 80232190-24-01 Page 6 of 9

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# GOODRICH SERVICE BULLETIN Number 80232190-24-01 Appendix 1 A. Complete the Results Table. NOTE: • Delete as necessary. Table 2 Results Table



# Ise,;a, No. 

### ITE2-0658' Serial No.

Circuit No. Function 

### RED LED GREEN LED 1 

### POCUA: BUS_TIE_MAN ON' 

### IOFF' 

### OW /OFF'

POCU B: GLC4_B_ST 

### 2 POCU A: BTC1_A_ST 

### ON" IOFF" OWIOFF"

POCU B: GLC3_B_ST Geu: STAR 

### 3 POCUA:GlC3_A_ST ON" 

### IOFF' ON" 

### IOFF'

POCU B: GALLEY _NOT_SHED GCU: TRIP 4 POCU A: GLC2

_A

_8T 

### ON*IOFF- ON" 

### IOFF"

POCU B: BTC1_8_8T GCU:READY2LOADA 

### 5 POCU A: GLC1_A_ST 

### ON"IOFF" OWIOFF"

POCU 8: CABIN_NOT_SHED 

## GCU:READY2LOADB 6 POCU A: BC1_A_ST ON' 

### !OFF' ON" j OFF'

POCU B: 5G_DC GCU: SPARE 7 POCU A: EXT_PWR_ON 

### ON' IOFF' OW IOFF'

POCU B: GEN1



## -OC GCU: SG_ROY2LD 

### 8 POCU A: APUC1_A_ST 

### OWIOFF' ON" 

### IOFF"

POCU B: GALLEY_OFF GCU: FAN_OFF 9 POCU A: STARTMOOE_A_ST 

### OWIOFF- 

### OWIOFF"

POCU B: BC1_B_ST GCU:GLC_AUX 10 POCU A: GLC4_A

_ST ON" IOFF" OWIOFF"

POCU B: GEN2_0C GCU: GCS_ON
Initial Issue : Aug 13/09 Revision Date :Aug 13/09 ©: Goodrich Powar Systoms

_2009 All MghlS faservad, 

## 80232190-24-01 Page7of9

# --- .---:::::::-.__o

_ 

# GOODRICH SERVICE BULLETIN Number 80232190-24-01 Circuit No. Function RED LED GREEN LED 11 ]PDCU B: GPC2_B_ST OWIOFF' OW IOFF" 

### 12 PDCU B: BTC2_B_ST OW f OFF" ON" / OFF" 

### 13 PDCU A: SPARE_DGO 

### ON'IOFF' ON" 

### IOFF'

PDCU B: GEN3_0C 

### 14 PDCU A: BTC2_A_ST 

### OW IOFP OW IOFF"

PDCU B: ISOL_TIED 

# '5 PDCUA:WOW~A~L 

### OW IOFF' ON" J OFF'

PDCU B: APUC1 _8_8T 

### '6 PDCU A: WOW_A_R ON" / OFF" ON" 

### IOFF'

PDCU B: BTC3_B_ST 

### 17 PDCU A: STSY_PUMP_ON ON" f OFF' ON' IOFF'

PDCU B: WOW_B_L 

### '8 PDCU A: BTC3_A_ST 

### ON" IOFF' ON" I OFF'

PDCU B: CABIN_OFF 

### '9 PDCU A: HSCB_SBEP

-ON ON' /OFF' OWI

### OFF'

PDCU B: GLC2_B_ST 

### 20 PDCU A: GPC1_A_ST 

### ON' IOFF" ON" 

### IOFF'



### PDCU B:BAI1_GP _DC_IN 

### 2' PDCU B: SPARE

_OG 1 ON" 

### IOFF" ON" 

### IOFF' 

### 22 PDCU B: BC2_B_ST 

### OWIOFF" ON' 

### IOFF' 

### 23 PDCU B: SPARE

_CONT

_eTL 

### ON' IOFF" ON" 

### IOFF" 

### 24 PDCU B: GPC1 _8_5T OW JOFF" OW tOFFT 

### 25 PDCU B: 5TARTMODE~B_ST ON" IOFF' OW I OFF' 

### 26 PDCU B: GLC1 _B_5T ON" 

### t OFF' OW IOFF" 

### 27 PDCU B: B_GPU_WOW OW/OFF' OW IOFF' 

### 28 PDCU B: GEN4_0C OW/OFF' ON" IOFF' 

### 29 PDCU B: EMERG_150L_B_5T OW/OFF' ON' / OFF" 

# I 30 PDCU B: WOW_B_R ON' / OFF' ON' / OFF" 

# I 35 PDCU B: RAT_WOW OW/OFF' ON' IOFF' 

### 36 PDCU A: BATT_HEATER OW, OFF' ON'! OFF' 

### 37 GCU: STARTMODE OW fOFF' ON' fOFF" 

### 38 GCU: GENOFF OW I OFF' ON'! OFF" Initial Issue ;Aug 13/09 Revision Date
.AU9 13/09
e, GoodJidl Power SysU!ms •2009 Allrig"lS rese<ved_ 

## 80232190-24-01 Page 8 of 9.~ 

# GOODRICH SERVICE BULLETIN Number 80232190-24---01 Circuit No. Function RED 

### lED GREEN LED 

### 39 PDCUB:BAn _GP_OC_OUT 

# ow IOFF" ON" 

### IOFF"



### GCU:GENOC

InitiallS$ue : Aug 13/09 Revision Date -Aug 13/09 

# =: GooOrich Power Systems. 2009 Allrights res"""'<:l. 

## 80232190-24-01 Page 9 of 9