This sheet transmits REVISION 1 dated September 7, 1979

of Service Bulletin No. 747-25-2425, "Slide/Raft Pack Board

Improvements And Pressure Vessel Viewing Provisions".

NOTE: This revision constitutes a complete reissue.

SUMMARY

This revision is issued to correct Paragraph I.A.1, "Airplanes

Affected", and to add LY to the effectivity.

Airplanes modified per the previous releases of this bulletin

do not require additional work.

A revision bar in the left margin along with this revision

number and date indicates a change. Absence of a revision

bar on a page bearing a "revised" notice means only that

existing copy has been moved or that a minor typographical

error has been corrected.

REVISION HISTORY

Original Issue:

Revision 1:

August 25, 1978

September 7, 1979
SUBJECT: SLIDE/RAFT PACKBOARD

IMPROVEMENTS AND PRESSURE

VESSEL VIEWING PROVISIONS

BACKGROUND

One operator has recently reported

finding several slide rafts, on

one recently delivered airplane,

with small punctures in the

inflatable material immediately

adjacent to the fasteners which

retain the double hook packboard

latch. The small punctures are

believed to be the result of the

slide raft inflatable material

contacting the several exposed cap

nuts on the inside of the

packboard used to install the

double hook packboard latch.

In addition, the operator reported

several instances of slide/raft

packboard fitting inserts

loosening and breaking out of the

fiberglass base.

Boeing has also received a report

of one of the hooks on the double

hook latch separating, resulting

in only one hook actually latching

and carrying the load.

ATA: 2569 NO: 747-25-2425

DATE: August 25, 1978

REVISION 1: September 7, 19

ACTION (PRR 75524-55 & -56)

Replace packboard cap nuts wit

flush type inserts. Reinforc

lower packboard support bracke

attachments. Install ne

packboard latch hooks. Modif

main entry door lower liner an

packboard by adding aligne

viewing port. Remove "PRESS T

TEST" circuit panel and remov

associated circuitry.

EFFECTIVITY

Line No. -- 154, 158, 160, 194

198, and 260 thru 343, except lin

number 272, JL airplanes, U

airplanes, and 747F airplanes.

MANPOWER

Total Manhours - 20

Airplane Down-Time - 10 Hours Pe

Door

MATERIAL INFORMATION

Numerous reports of false

indications of low pressure in the

pressure vessel have been received

from four operators. Gauges

containing a remote indicating

switch for operation of the low

pressure warning light have been

susceptible to corrosion. A means

for direct viewing of the pressure

vessel pressure gauge has

therefore been developed in order

to delete the warning light

function.

Kit

63B12678-1

63B12678-2

63B12678-5

63B12678-6

63B12678-7

Price*

No Charge

No Charge

No Charge

No Charge

No Charge

* See Paragraph I.F. for term

and conditions applicable to pric

and delivery information.

Summary Page 1 of
Aug 25/78

Summary Page 2 of 

2
ATA

SYSTEM: 2569

NO: 747-25-2425

DATE:

REVISION 1:

August 25, 1978

September 7, 1979

SUBJECT: SLIDE/RAFT PACKBOARD IMPROVEMENTS AND PRESSURE

VESSEL VIEWING PROVISIONS

I. Planning Information

A. Effectivity

1. Airplanes Affected

An equivalent change will be incorporated in

production in accordance with PRR 75524-55 and 75524-

56 on applicable airplanes other than those listed

below.

CUSTOMER &

CUSTOMER NO.

MODEL &

SERIES MFG. SERIAL NO. REGISTRY NO.

AF (AIR FRANCE)

RA266

RD651

RD652

RD653

AI (AIR INDIA)

RA725

RA726

RA727

747-128

747-228B

747-228B

747-228B

747-237B

747-237B

747-237B

Aug 25/78 747-25-2425

REV. 1: Sep 7/79 Page 1 of 20

21141

21326

21429

21537

21182

21446

21473

N401 16

F--BPVS

F -BPVT

N1L252E

VT-EDU

VT-EFJ

VT-EFO
CUSTOMER &

CUSTOMER NO.

MODEL &

SERIES MFG. SERIAL NO. REGISTRY NO.

AR (ARGENTINAS)

RD121 747-2878

AT (ROYAL AIR MOROC)

RD671 747-2868

BA (BRITISH AIRWAYS )

RA318 747-136

RD131-RD134 747-236B

RD135&RD136 747-236B

RD137 747-236B

21213

21238

21350

21536

THRU 21241

AND 21351

G-BDPV

G-BDXA

G-BDXE

G-BDXG

THRU G-BDXD

AND G-BDXF

CI (CHINA AIRLINES)

RD551 747-209B

RG171 7475P-09

GN (AIR GABON)

RD661 747-2Q2B

IA (IRAQI AIRWAYS)

RJ301&RJ302 747-270C

IR (IRAN NATIONAL AIRLINES)

RD681&RD682 747-2868

RG1OI&RG102 747SP-86

RG103 747SP-86

KL (ROYAL DUTCH)

RD601&RD602 747-2068

RD603 747-2068

KU (KUWAIT AIRWAYS CORP.)

RD201&RD202 747-269B

21180 AND

21217 AND

20998 AND

21093

21110 AND

21547

21541 AND

21181

21218

20999

21111

21542

YI-AGN AND

EP-IAG AND

EP-IAA AND

EP-IAC

PH-BUH AND

PH-BUK

9K-ADA AND

LH (LUFTHANSA)

RD641&RD642

RD643

RD644

747-230B

747-2308

747-230B

21220 AND

21380

21588

21221 D-ABYJ AND

D-ABYL.

D-ABYM

Aug 25/78

REV. 1: Sep 7/79

747-25-2425

2

21189 LV-LZD

21615 CN-RME

21454

21300

B-1864

B-1862

21468 F-ODJG

YI-AGO

EP-IAH

EP-IAB

PH-BUI

9K-ADB

D-ABYK
CUSTOMER &

CUSTOMER NO.

MODEL &

SERIES MFG. SERIAL NO. REGISTRY NO.

LY (EL AL ISRAEL)

RJ152 747-258C

ME (MIDDLE EAST AIRLINES)

RD621-RD623 747-2B4B 21097 THRU 21099 OD-AGH THRU OD-AGJ

PA (PAN AMERICAN)

RGUOI-RG005

RG06&RG07

RG091

QF (QANTAS)

-RB010

RBO11

RB012

RD513&RD514

RD515&RD516

RD531

747SP-21

747SP-21

747SP-21

747-238B

747-238B

747-238B

747-238B

747-238B

747-238B

21022

21547

21441

THRU 21026

AND 21548

21054

21140

21237

21352 AND

21657 AND

21354

N530PA THRU N534PA

N537PA AND N538PA

N536PA

VH-EBJ

VH- EBK

VH-IBL

21353 VH-EBM AND

21658 VH-EBO AND

VH-E CA

VH-EBN

VH-EBP

RB (SYRIAN ARAB AIRLINES)

RG141&RG142 747SP-94

RJ (ROYAL JORDANIAN)

RDb91&RD692 747-2D3B

21174 AND 21175

21251 AND 21252

YK-AHA AND YK-AHB

JY-AFA AND JY-AFB

SA (SOUIH AFRICAN)

RB071-RB073 747-244B

RB074&R075 747-244B

RG121-RG123 747SP-44

RG124&RG125 747SP-44

RG126 747SP-44

20237

20556

21132

21253

21263

THRU

AND

THRU

AND

20239

20557

21134

21254

ZS-SAL THRU

ZS-SAO AND

ZS-SPA THRU

ZS-SPD AND

ZS-SPF

SK (SCANDINAVIAN)

RD591 747-283B

SQ (SINGAPORE AIRLINES LTD)

RD045 747-212B

RDO46 747-212B

RD047 747-212B

Aug 25/78

REV. 1: Sep 7/79

747-25-2425

3

21594 4X-AXF

ZS-SAN

ZS-SAP

ZS-SPC

ZS-SPE

21381 LN-RNA

21162

21316

21439

9V-SQE

9V-SQF

9V- OG
CUSTOMER &

CUSTOMER NO.

MODEL &

SERIES MFG. SERIAL NO. REGISTRY NO.

SV (SAUDI ARABIAN EXEC)

RH101 747SP-68 21652

WD (WARDAIR)

RD171 747-211B 21516

Aug 25/78

REV. 1: Sep 7/79

747-25-2425

4

HZ-HM1

C-GXRA
2. Spares Affected

The following is a composite list of spares affected

by this change. Operators should review their spares

procurement to establish existence of any listed

parts in their spares inventory. See Paragraph II.D.

Existing Parts Accountability for disposition.

Part Number

60B50082-10

60B50082-11

60B50082-12

60B50082-13

60B50082-14

60B50082-15

60B50082-67

60B50082-68

60B50082-69

60B50082-70

60B50082-71

60B50082-72

60B50082-109

60B50082-110

60B50082-111

60B50082-112

60B50082-113

60B50082-114

60B50082-143

60B50082-144

60B50082-145

60B50082-146

60B50082-147

60B50082-147

60B50082-171

60B50082-172

60B50082-173

60B50082-174

60B50082-175

60B50082-176

60B50082-185

60B50082-186

60B50082-187

60B50082-188

60B50082-189

60B50082-190

60B50082-191

60B50082-192

Nomenclature

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Aug 25/78 747-25-2425

5
Part Number Nomenclature

60B50082-193

60B50082-194

60B50082-195

60B50082-196

60B50082-197

60B50082-198

60B50082-199

60B50082-200

60B50082-201

60B50082-202

60B50082-203

60B50082-204

60B50082-205

60B50082-206

60B50082-213

60B50082-214

60B50082-215

60B50082-216

60B50082-217

60B50082-218

60B50082-219

60B50082-220

60B50082-239

60B50082-240

60B50082-241

60B50082-242

60B50082-243

60B50082-244

60B50082-245

60B50082-246

60B50082-247

60B50082-248

60B50082-249

60B50082-250

60B50082-251

60B50082-252

60B50082-255

60B50082-256

60B50082-257

60B50082-258

60B50082-259

60B50082-260

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Slide/Raft Assembly

Aug 25/78 747-25-2425

6
Nomenclature

60B50082-261

60B50082-262

60B50082-263

60B50082-264

60B50082-265

60B50082-266

60B50082-267

60B50082-268

60B50082-271

60B50082-272

60B50082-273

60B50082-274

60B50082-275

60B50082-276

60B50082-277

60B50082-278

60B50082-279

60B50082-280

60B50082-281

60B50082-282

60B50082-283

60B50082-284

60B50082-285

60B50082-286

60B50082-287

60B50082-288

60B50082-289

60B50082-290

Slide/Raft

Slide/Raft

Slide/Raft

Slide/Raft

Slide/Raft

Slide/Raft

Slide/Raft

Slide/Raft

Slide/Raft

Slide/Raft

Slide/Raft

Slide/Raft

Slide/Raft

Slide/Raft

Slide/Raft

Slide/Raft

Slide/Raft

Slide/Raft

Slide/Raft

Slide/Raft

Slide/Raft

Slide/Raft

Slide/Raft

Slide/Raft

Slide/Raft

Slide/Raft

Slide/Raft

Slide/Raft

Assembly

Assembly

Assembly

Assemibly

Assembly

Assembly

Assembly

Assembly

Assembly

Assembly

Assembly

Assembly

Assembly

Assembly

Assembly

Assembly

Assembly

Assembly

Assembly

Assembly

Assembly

Assembly

Assembly

Assembly

Assembly

Assembly

Assembly

Assembly

Aug 25/78 747-25-2425

7

Part Number
B. Reason

This modification is to reduce abrasion and punctures of

slide rafts from capnuts within the packboard, to provide

an improved structural attachment for the lower packboard

support brackets, and to provide an improved means of

retaining the packboard latch hooks together. In

addition, this modification is to provide a means for

direct determination of status of slide/raft inflation

system pressure vessels.

One operator has recently reported finding several slide

rafts, on one recently delivered airplane, with small

punctures in the inflatable material immediately adjacent

to the fasteners which retain the double hook packboard

latch. The small punctures are believed to be the result

of the slide raft inflatable material contacting the

several exposed cap nuts on the inside of the packboard

used to install the double hook packboard latch.

In addition, the operator reported several instances of

slide/raft packboard fitting inserts loosening and

breaking out of the fiberglass base.

Boeing has also received a report of one of the hooks on

the double hook latch separating resulting in only one

hook actually latching and carrying the load.

Numerous reports of false indications of low pressure in

the pressure vessel have been received from four

operators. Gauges containing a remote indicating switch

for operation of the low pressure warning light have been

susceptible to corrosion. A means for direct viewing of

the pressure vessel pressure gauge has therefore been

developed.

Aug 25/78 747-25-2425

8
C. Description

Aug 25/78

To eliminate problems with the present remote warning

pressure gauge and to provide a packboard installation of

improved design, the operator may incorporate the

following design changes.

1. Replace cap nuts with an insert bar to protect slide

raft material from abrasion.

2. Provide improved structural attachment for lower

packboard support brackets.

3. Install a new improved packboard latch.

4. Install cutouts in lower door lining and packboard to

permit direct viewing of pressure vessel pressure

gauge.

Because each of the bulletins listed in the following

table requires unpacking of slide/raft assemblies, it is

suggested that all of the listed bulletins be accomplished

concurrently on commonly affected airplanes and/or

slide/raft assemblies. Concurrent incorporation of Boeing

Service Bulletin 747-25-2425 and B.F. Goodrich Service

Bulltin 25-048 and 25-049 is required.

747-25-2425

9
TABLE I

Bulletins Affecting Slide/Raft Assemblies

Aug 25/78 747-25-2425

10
D. Approval

The modification described herein has been approved by the

FAA Designated Engineering Representative at the Boeing

Commercial Airplane Company.

E. Manpower

Approximately 20 man-hours are required to accomplish this

modification per door.

The following breakdown of manpower requirements is

suggested as a guide to assist operators in planning and

accomplishing this modification. This estimate is for

direct labor only and assumes an experienced crew. It

does not include setup, planning, familiarization, tool

acquisition, or lost time. Thus, operators should factor

this estimate as necessary based on their own experience.

TABLE II

Man-Hour Estimate Per Airplane

Aug 25/78 747-25-2425

11
F. Material - Price and Availability

The kits identified in Paragraphs II.A. and II.B. may be

obtained from Boeing within the terms and conditions

defined below. After expiration of the quotation, price

and delivery data will be provided upon request.

The delivery quotation below indicates the date when

initial kits will be available. When source capacity is

limited and tooling or material availability is the pacing

factor, customer purchase orders will receive an

allocation, from the available quantities, based on

receipt date of purchase order by the Spares Department

and based on operator's planned modification schedules.

It is therefore requested that customer purchase orders

include planned dates of incorporation. When initial

quantities are depleted, additional kits will be available

as indicated in the ROLT (Reorder Lead Time) column.

Initial

Kit Number Description Delivery ROLT Unit Price

63B12678-1 Kit, Top Sep 27/78 26 Wks. No Charge

63B12678-2 Kit, Door Sep 27/78 26 Wks. No Charge

63B12678-5 Kit, Door Sep 27/78 26 Wks. No Charge

63B12678-6 Kit, Door Sep 27/78 26 Wks. No Charge

No. 5

63B12678-7 Kit, Top Sep 27/78 26 Wks. No Charge

Date August 25, 1978

The prices quoted are subject to the terms and conditions

of Boeing's standard purchase order acknowledgement.

Quotations are subject to acceptance within 120 days from

date hereon. Any items which are offered at "No Charge"

are subject to charge after expiration of the 120-day

period. Prices quoted in United States Dollars. Terms:

Net 30 days.

Address purchase orders and correspondence pertaining to

this quotation to Director of Spares, and refer to this

service bulletin number.

Aug 25/78 747-25-2425

12
G. Tooling - Price and Availability

None

H. Weight and Balance

Applicability

Basic

747-SP

Change in Basic

Weight (Pounds)

+2.5

+2.5

Change in Basic

Moment (Pound-Inches)

+3.275

+3161

I. References

1. Existing Data:

a. Engineering Change Memo PRR 75524-55 and 75524-

56

b. 747 Maintenance Manual Subject 25-69-01

c. 747 Wiring Diagram Manual 25-66-11

2. New or revised data supplied in support of this

bulletin:

Drawing No.

63B12678

65B65632

Aug 25/78

Sheet

1

2

1

DCN ADCN Title

A 1 Kit, Slide/Raft DirectViewing Pressure Gauge

A

Kit, Slide/Raft Gauge Access

Door Instl., Lower Liner

3. Process Data:

Boeing Process Specifications that are listed on

drawings supplied in support of this bulletin are not

detailed in this bulletin since they are common

practices which can be accomplished in accordance

with operator's normal procedures.

747-25-2425

13
J. Publications Affected

The modification described herein affects the following

publications:

Publication Chapter/Section

747 Maintenance Manual ................. 25-69

747 Overhaul Manual.................... 25-65

747 Wiring Diagram Manual.............. 25-66

747 Illustrated Parts Catalog.......... 25-69

Aug 25/78 747-25-2425

14
II. Material Information

A. Parts Required Per Airplane

The following kit assemblies may be obtained from Boeing

as noted in Paragraph I.F.:

NOTE: Top kit assembly is divided into sub kits for

convenience of installation. Only one top kit

is required to modify each airplane.

63B12678 - KIT, DIRECT VIEW GAGE PACKBOARD, SLIDE/RAFT

-7 -1

Quantity Part Number Nomenclature

63B12678-1(*)

63B12678-7(*)

63B12678-2(*)

63B12678-5(*)

63B12678-6(*)

Kit, Slide/Raft Direct

View Pressure Gauge Packboard (Basic Airplane) Kit, Slide/Raft Direct

View Pressure Gauge

Packboard (747-SP Airplane)

Kit, Door No. 1, 2, and 4

Slide/Raft Direct View

Gauge Packboard

Kit, Door No. 1, 2, 3, and 4

Slide/Raft Direct View

Gauge Packboard

Kit, Door No. 5 Slide/

Raft Direct View Gauge

Packboard

Aug 25/78

(*) See Table III for color code suffix.

See kit drawings supplied with this bulletin for complete

kit parts lists and list of all operator furnished

materials.

747-25-2425

15

6

8

2
B. Parts Required to Modify Spares

Quantity Part Number Nomenclature

1

1

1

Kit Color

Customer

63B12678-2

63B12678-5

63B12678-6

Kit, Door (Basic Airplanes)

Kit, Door (SP Airplanes)

Kit, Door No. 5

(Basic Airplanes)

TABLE III

Code Identification

747-100, -200 747-SP

63B12678-1B

63B12678-1A

63B12678-1A

63B12678-1A

63B12678-1A

63B12678-lB

63B12678-1A

63B12678-1B

63B12678-1A

63B12678-1A

63B12678-1A

63B12678-1A

63B12678-1C

63B12678-1A

63B12678-1A

63B12678-1A

63B12678-1A

63B12678-1A

63B12678-1A

63B12678-1A

63B12678-7A

63B12678-7A

63B12678-7A

63B12678-7A

63B12678-7A

63B12678-7A 6 3B12678-7A

C. Special Tools and Equipment Required

None

D. Existing Parts Accountability

See kit drawings supplied with this bulletin for complete

disposition of all existing parts and assemblies.

Aug 25/78 747-25-2425

16

(RJ152)

AF

AI

AR

AT

BA

BO

CI

GN

IA

IR

KL

KU

LH

ME

PA

QF

RB

RJ

SA

SK

SQ

SV

WD
III. Accomplishment Instructions

NOTE: The following paragraphs outline the general accomplishment instructions and detailed test

requirements. The suggested sequence of operations

and detailed accomplishment instructions are

indicated by circle notes on the figures and drawings supplied with this bulletin.

A. Remove slide assembly from door and remove inflatable from

packboard (Ref: 747 Maintenance Manual Subject 25-69-01).

B. Rework door-packboard pivot bracket area per Drawing 63B12678, Sheet 2, View All-1, A8, and B8. Revise teflon

trim in pivot bracket area per Sheet 2, View 1A5, 2A5,

1B8, and 2B8.

C. Make cutout in packboard per Drawing 63B12678, Sheet 2, View B9.

D. Install new latch channel and stiffener bracket on

packboard per Drawing 63B12678, Sheet 1, View B8.

E. Install new latch on top of packboard per Drawing 63B12678, Sheet 1, View C10.

F. Disconnect electrical connector from PRESS TO TEST panel assembly. Remove panel assembly and remove wiring per Figure 1. Install cover panel over opening in middle

liner assembly per Drawing 63B12678, Sheet 2, View B9:

G. Enlarge pivot bracket hooks per Drawing 63B12678, Sheet 2, View B10.

H. Cut out opening in door lower liner and install liner

assembly per Drawing 65B65632, Sheet 1, View I.

I. Restore packboard, slide assembly and liners to normal

configuration (Ref: 747 Maintenance Manual Subject 25-69-

01).

Aug 25/78 747-25-2425

17
FIGURE 1. DOOR WIRING DELETION

Aug 25/78 747-25-2425

18
FIGURE 1. DOOR WIRING DELETION

Aug 25/78 747-25-2425

19
747-SP AIRPLANES

Door W/B No. Terminal

Strip

Ground

Stud

Packboard

Equip. No.

Panel

Equip. No.

TB205 GD6338-DC

TB207 GD2233-DC

TB209 GD6430-DC

TB211 GD1731-DC

TB206 GD6336-DC

TB208 GD2231-DC

TB210 GD6436-DC

TB212 GD1757-DC

BASIC AIRPLANE

TB205

TB207

TB211

TB213

TB206

TB208

TB212

TB214

GD6338-DC

GD6342-DC

GD6346-DC

GD6350-DC

GD6336-DC

GD6340-DC

GD6344-DC

GD6348-DC

Aug 25/78 747-25-2425

20

1L

2L

3L

4L

1R

2R

3R

4R

1L

2L

4L

5L

1R

2R

4R

5R

W2078

W2082

W2092

W2086

W2076

W2080

W2094

W2084

W2078

W2082

W2086

W2090

W2076

W2080

W2084

W2088

M295

M296

M455

M297

M291

M292

M454

M293

M295

M296

M297

M298

M291

M292

M293

M294

M910

M912

M918

M913

M903

M904

M916

M906

M910

M912

M913

M914

M903

M904

M906

M908