# ---=- GOODRICH SERVICE BULLETIN Number 80232191-24-01 Goodrich Power Systems Westfield Road Pils(one 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 APPLICABIUTY DAS$AULT FALCON 7X 1. Instructions A. The Service Bulletin was written under EASA Approval No. UK.145.00B58. B. The technical content of this document is approved under the authority of DOA No. EASA.21J.051.

Copyright inthis Service Bulletinand associated documents and drawings belongsto Goodrich PowerSystems and all rjghts are reserved. No reproduction ofallor partofthisService Bulletin shall be madewithout the priorwritten consent of Goodrich Power Systems. This documenl coniains inform1:ltionthat may be confidential and its disclosure to others requires the written consent of Goodrich Power Systems,

### ~ 

# GOODRICH SERVICE BULLETIN Number 

### 80232191-24-01

INTENTIONALLY BLANK

### ~ 

# GOODRICH SERVICE BULLETIN Number 80232191-24-01 1. Planning Information A. Effectivity (1) This Service Bulletin (58) applies to the Goodrich Corporation PDCU B Cards 

### Pt No. 80232191 and 80231925/53 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 ofaircraft-level effects associated with degradation of 33Volt Transient Voltage Suppression (TVS) Diode inthe Primary Distribution Control Unit (PDCU) and Generator Control Unit (GCU) printed circuit board assemblies. D. Description (1) The lVS Diodes have been categorised based on the severity of the effect. This S8 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 conlent ofthis document isapproved 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 S8. Goodrich CMM for the Left PPDS, Part No. SW02101, ATA No. 24-61-01 will be revised to reference the data contained in this S8 Goodrich CMM for the Right PPDS, Part No. SW02201, ATA 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

~ Goodrkh PowerSystems· 2009AUrights reset\le'L 

# 80232191-24-01 Page 1 of 9

# ~- GOODRICH SERVICE BULLETIN Number 80232191-24-01 2. Material Information A. Material - Price and Availability (1) NotApplicable. B. Industry Support Program (1) Not Applicable. C. Material Necessary for each Component/Engine (1) Not Applicable. D. Spare Parts Availability (1) NotApplicable. E. Re-identified Parts (1) None. F. Tooling - Price and Availability (1) The lools given below are necessary forthis 58 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 TEZ-Q658 Goodrich Power Falcon multi-channel Systems 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 S8 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 10the ground sockel of the lesl-sel and a suitable earth point. (3) Connect the DC plug from the Power Supply Unil (PSU) to the 48 volts socket on the side of the test~sel. (4) Connecl mains lead from the PSU 10an applicable a.c. outlel and apply mains power.
Initial Issue :Aug 

### 13/09 Revision Date :Aug 

### 13/09

~: Gooorich Power Systems· ~009 Allright, reserved. 

# 80232191-24-01 Page 2 of 9

### ~ 

# GOODRICH SERVICE BULLETIN Number 80232191-24-01 (5) Push the "TEST" button on the test-set, make sure the 40 RED LEOs illuminale_ NOTE: If, the RED LEOs do not illuminate the test set is damaged. 8. Procedure (1) Plug the board into the PDCU Bconnector 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 10the sockel "GROUND" on the test-set. Use acrocodile 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 lest-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 10collect data for possible future enhancements_ (5) Release the test button. (6) Push the "TESr button on the test-set. and make sure the circuit LEOs 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 

# • BTC1 B ST OFF ON PASS 

### 7 GEN1 OC OFF ON PASS 

### 10 GEN20C OFF ON PASS 

### 12 BTC2 B ST OFF ON PASS 

### 13 GEN30C OFF ON PASS 

# ,. ISOL TIED OFF ON PASS 

### 16 BTC3 B ST OFF ON PASS 

### 19 GLCl B ST OFF ON PASS 

### 20 BATl GP OC IN OFF ON PASS 

### 26 GLC1 B ST OFF ON PASS 

### 29 EMERG ISOL B OFF ON PASS

STATUS 

### 35 RAT WOW OFF ON PASS 

### 39 BAT1 GP OC OUT OFF ON PASS (7) Release the test button_

Initial Issue :Aug 13/09 Revision Date Aug 13/09

"" Goodnch Power Systems -<!D09All rights reseNoo. 

# 80232191-24-01 Page 3 of 9

# ---===- GOODRICH SERVICE BULLETIN Number 80232191-24·01 (8) If,a RED 

### LED is ON or a GREEN LED isOFF (Ref. Table 1),the PDCU Bcard must be returned 10 Goodrich Power systems. C. Completion (1) Disconnect and remove the ground lead and crocodile clip from the thermal plane of the POCU B card. (2) Remove the PDCU B card from the lest-set. (3) Remove a.c. mains power and disconnect the PSU from the a.C. oullet.. (4) Disconnect the PSU from the 48 volts sockeL on the side of the lest-set. (5) Remove the ground lead from the ground socket of the test-set and the earth point.

Initial Issue :Aug 13/09 Revision Date :Aug 13/09 

# 80232191-24-01 Page 4 of 9

### ~ 

# GOODRICH SERVICE BULLETIN Number 80232191-24-01

GCU 

# (!)GROUND PDCU B 

# o TEST PDCU A

~-



## "
eo 

## eo eo 

## ...•......' 

## '"

eo H


### eo 

## ,r_:-:;;- ..:.~--., •.

_:,~••.•• 

## c;,C<:~,

# j

----_.- -,-_. --



### _ .~'~- ,,,,,,,,,_._~, •••

~-' ",""..'>- "VO-.ao

_ -;:::':C:._ ••••.. ~" ~<.."'

• 00 GO 60 

## eo eo

eo eo 0' 

### ":"--"" ·,. •• u.•• ,~_~.



### ..,~, ..•.,'". 0'



## eo 00



## " " 

# ,. " " " "

~ -"' """-"-"" 

# ..

# _-.•.•.

# -,- "-'""'-- 

# -,- 0 

# I eo eo eo eo eo eo 00 00 01 O' 

# -,'.......•..'"

## ---.:~

'

# .•."



### ~ 

# ..•' 

# ..."' 

# Ek'

# -rr"~'~""
,."",,~ ""''-''P =•••..

_ _"'-"" 

## ~:'''B_

_.•..•.•

' .~ -....

__~

_ ...•..•• 00 

## eo 80 

## eo eo 

# ~-:if~

00 

### ~

## "

-•••'JP....,_~-



# - - o eo ~ 

## " 

# ,. " " "

I _r

__ ~~

.. 

### "''- 

# -

# - 

# - eo 00 

# I .0 

## eo eo eo 

# •

--- 

## eo

Test sel TE2-0658 Figure 1

~; G(){I~fichPowerSystem•.. zoos All rights re$~rvad. Initial Issue Revision Date 

### :Aug 13109

.Aug 13/09 

# 80232191-24-01 Page 5of9

# --- -----===---:-- 

# GOODRICH SERVICE BULLETIN b 80232191-24~Ol Num er

ESO plan••

PDCU B Figure 2

INTENTIONALLY BLANK
: Aug 13/09 Initial Issue :Aug 13/09 Revision Date 2000 Allri~hts ,eserv ••~. @: Goodrich Power Sysroms 

# 80232191-24-01 Page6of 9Appendix 1 A. Complete the Results Table. NOTE: • Delete as necessary. 

# ---==---

GOODRICH SERVICE BULLETIN Number 80232191-24-01

Table 2 Results Table Board type Serial No. TE2-0658, Serial No.



## - Circuit No. Function RED LED GREEN LED 1 POCU A: BUS~TIE_MAN ON' 

### IOFF' ON' 

### !OFF'

POCU B: GLC4_B_ST 

### 2 POCU A: BTC1_A_ST ON' IOFF* 

### OWIOFF'

POCU B: GLC3_B_ST GCU: STAR 

### 3 POCU A: GLC3_A_ST ON" IOFFT ON' 

### IOFF'

POCU B: GALLEY_NOT_SHED GCU: TRIP 

### 4 POCU A: GLC2_A_ST OW IOFF* 

### ON' IOFF'

POCU 8: BTC1_8_8T 

## GCU:READY2LOADA 5 POCU A: GLC'_A_ST ON" IOFf' ON' IOFF"

PDCU B: CABIN_NOT_SHED GCU: READY2LOADB 

### 6 POCU A: BC'_A_ST ON" IOFF" ON" IOFF'

PDCU B: 

### 5G_DC GCU: SPARE 7 POCU A: EXT_PWR_ON ON" f OFF" OW /OFF'

PDCU B: GEN1



## -DC GCU: SG_RDY2LD 

### B PDCU A: APUC1_A_ST ON" 

### IOFF" ON" / OFF"

PDCU B: GALLEY_OFF GCU:FAN_OFF 9 PDCU A: STARTMODE~A_ST ON" IOFF' ON" I OFF'

PDCU B: BC1_B_ST GCU: GLC_AUX 10 PDCU A: GLC4_A_ST ON' IOFF' ON" I OFF'

PDCU B: GEN2_0C GCU: GCS_ON
Initial Issue : Aug 13/09 Revision Date :Aug 13/09
@: GOOdrichPower Systems· 2009 Atlrights reserved. 

## 80232191-24-{)1 Page 7 of 9

### ~ 

# GOODRICH SERVICE BULLETIN Number 80232191-24-01 Circuit No. Function RED LED GREEN LED 

### 11 

## pocu B: 

### GPC2~B_ST ON' IOFF' OW! OFF' 

### 12 POCU B: BTC2_B_ST ON' IOFF' OW IOFF' 

### 13 POCU A: SPARE_OGO 

### ON' IOFF" OWIOFF"

POCU B: GEN3 OC 

### 14 POCU A: BTC2_A_ST 

### OW IOFP 

### OW, OFF"

POCU B: ISOL_TIED 

### 15 POCU A: WOW_A_L ON' 

### IOFF" ON" 

### IOFF"



### POCUB:APvel _8_5T 

### 16 

## pocu A: WOW_A_R 

### OWIOFF' OW IOFF'

POCU B: BTC3_B_ST 

### 17 POCU A: STBY_PUMP_ON ON" IOFF" OW J OFF"

POCU B: WOW_B_L 

### 18 POCU A: BTC3_A_ST OW IOFF" ON" 

### IOFF"

POCU B: CABIN_OFF 

### 19 POCU A: HSCB_SBEP _ON ON" IOFF" 

### OWIOFF"



## pocu B: GLC2_B_ST 

### 20 POCU A:GPC1_A_5T OW I

### OFF' OW 

### IOFF"

POCU 8: BAll GP_De_ IN



## - 21 

## pocu B:SPARE_DGl ON" IOFF" ON" IOFF" 

### 22 POCU B: BC2_B_ST OW /OFF' ON" 

### IOFF" 

### 23 POCU B: 

### SPARE_CONT_ell ON" IOFF" 

### ON"IOFF" 

### 24 POCU 8: GPC1 _B_5T ON" {OFF" ON" {OFF" 

### 25 PDCU B: STARTMODE_B_ST ON'" 

### IOFF~ ON" I OFF'" 

### 26 PDCU B: GlC1 _8_5T ON" IOFF" ON" I OFF" 

### 27 PDCU B: B_GPU_WOW ON' / OFF" ON" / OFF" 

### 28 PDCU 8: GEN4_0C ON" / OFF" ON" / OFF" 

### 29 PDCU B: EMERGJ50l_B_5T 

## ow IOFF" 

## ow IOFF" 

### 30 PDCU B: WOW_B_R ON" 

### IOFF' ON' f OFF" 

### 35 PDCU B: RAT_WOW ON' { OFF" ON" {OFF" 

### 36 PDCU A: BAIT_HEATER ON'" ! OFF' ON'! OFF' 

### 37 GCU: STARTMODE ON' / OFF' ON' {OFF' 

### 38 GCU: GENOFF ON' 

### IOFF' ON" IOFF" Initial Issue : Aug 13/09 Revision Date :Aug 13/09 Q: GoodrichPowerSystems. 2009All rightsreserved. 

# 80232191-24-01 Page 8of 9

# ~.:- 

# GOODRICH SERVICE BULLETIN Number 80232191-24-01 Circuit No_ Function RED LED GREEN LED 

# 3. PDCU B: BAT1

-GP_OC_OUT OW 

### IOFF~ OWI

### OFF"

GCU: GENGe

Initial Issue :Aug 13/09 Revision Date :Aug 13109
@: GoodnCl'l Power Syslems - 2009 All rigl'llS reserved. 

# 80232191-24-01 Page 9 of 9