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GOODRICH

SERVICE BULLETIN

Number 80232190--24-01

Goodrich Power Systems

Westfield Road

Pitstone LU7 9GT England

0044 1296 663000

SERVICE BULLETIN

STANDARD

ELECTRICAL POWER - PDCU A PT. NO. 80232190, 80231869/55, 80231869/56 AND

80231869/57 INSPECTION/CHECK OF THE 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.
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GOODRICH

SERVICE BULLETIN

Number 80232190-24-01

INTENTIONAllY BLANK
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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

33 Volt Transient Voltage Suppression (lVS) 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 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 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.

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 for the 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 of 9
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GOODRICH

SERVICE BULLETIN

Number 80232190-24-01

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-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) 10 the 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;h Power Svst£ms· 2009 All rig~1S resarvetl_

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 10 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 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 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 crocodile clip from the thermal plane of the 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 <ignIs reserved

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

FR

o

----00

00

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--

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00

00

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00 00 00

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00 00

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00 00 00 00 00 00

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00 00 00 00 00 00 00 00

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

ESO plane

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 9
Initial Issue : Aug 13/09

Revision Date : Aug 13/09

@: Goooricn Power System;. 2009 All 'lgMs reserved.

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GOODRICH

SERVICE BULLETIN

Number 8023219{}--24-01

INTENTIONAllY BLANK

80232190-24-01

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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 POCU A: BUS_ TIE_MAN ON' I OFF' OW / OFF'

POCU B: GLC4_B_ST

2 POCU A: BTC1_A_ST ON" IOFF" OW I OFF"

POCU B: GLC3_B_ST

Geu: STAR

3 POCU A: GlC3_A_ST ON" I OFF' ON" I OFF'

POCU B: GALLEY _NOT_SHED

GCU: TRIP

4 POCU A: GLC2 _A_ 8T ON* IOFF- ON" I OFF"

POCU B: BTC1 _8_8T

GCU:READY2LOADA

5 POCU A: GLC1_A_ST ON" IOFF" OW I OFF"

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 I OFF'

POCU B: GEN1

-

OC

GCU: SG_ROY2LD

8 POCU A: APUC1_A_ST OW I OFF' ON" I OFF"

POCU B: GALLEY_OFF

GCU: FAN_OFF

9 POCU A: STARTMOOE_A_ST OW I OFF- OW I OFF"

POCU B: BC1 _B_ST

GCU:GLC_AUX

10 POCU A: GLC4 _A_ST ON" IOFF" OW I OFF"

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

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GOODRICH

SERVICE BULLETIN

Number 80232190-24-01

Circuit No. Function RED LED GREEN LED

11 ]PDCU B: GPC2_B_ST OW I OFF' OW I OFF"

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

13 PDCU A: SPARE_DGO ON' IOFF' ON" I OFF'

PDCU B: GEN3_0C

14 PDCU A: BTC2_A_ST OW IOFP OW I OFF"

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" I OFF'

PDCU B: BTC3_B_ST

17 PDCU A: STSY _PUMP_ON ON" f OFF' ON' I OFF'

PDCU B: WOW_B_L

'8 PDCU A: BTC3_A_ST ON" I OFF' ON" I OFF'

PDCU B: CABIN_OFF

'9 PDCU A: HSCB_SBEP -

ON ON' / OFF' OW I OFF'

PDCU B: GLC2_B_ST

20 PDCU A: GPC1_A_ST ON' IOFF" ON" I OFF'

PDCU B: BAI1_GP _DC_IN

2' PDCU B: SPARE _ OG 1 ON" I OFF" ON" I OFF'

22 PDCU B: BC2_B_ST OW I OFF" ON' I OFF'

23 PDCU B: SPARE _ CONT _ eTL ON' IOFF" ON" I OFF"

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 I OFF'

28 PDCU B: GEN4_0C OW / OFF' ON" I OFF'

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' I OFF'

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

37 GCU: STARTMODE OW f OFF' ON' f OFF"

38 GCU: GENOFF OW I OFF' ON'! OFF"

Initial Issue ; Aug 13/09

Revision Date . AU9 13/09

e, GoodJidl Power SysU!ms • 2009 All rig"lS rese<ved_

80232190-24-01

Page 8 of 9
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GOODRICH

SERVICE BULLETIN

Number 80232190-24---01

Circuit No. Function RED lED GREEN LED

39 PDCU B: BAn _GP_OC_OUT ow IOFF" ON" I OFF"

GCU:GENOC

InitiallS$ue : Aug 13/09

Revision Date - Aug 13/09

=: GooOrich Power Systems. 2009 All rights res"""'<:l.

80232190-24-01

Page 9 of 9