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SEF 1 2 1971 (MASTER COPIES) REVISION 747
TRANSMITTAL SHEET Boeing Service Bulletin No. 747-25-2425 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 Affectedi, 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: August 25, 1978 Revision 1: September 7, 1979
BOEING COMMERCIAL
AIRPLANE COMPANY
CUSTOMER SUPPORT
BOEING COMMERCIAL AIRPLANE COMPANY SUBJECT: SLIDE/RAFT PACKBOARD
IMPROVEMENTS AND PRESSURE
VESSEL VIEWING PROVISIONS BOEING 747
SERVIOE BULLETII
SUMMARY P.O. BOX 3707 SEATTLE, WASHINGTON 981% ATA: 2569 NO: 747-25-2425 DATE: August 25, 1978 REVISION 1: September 7, 19 BACKGROUND ACTION (PRR 75524-55 & -56) One operator has recently reported Replace packboard cap nuts wit:
finding several slide rafts, flush type inserts. Reinforc one recently delivered airplane, lower packboard support bracke small punctures attachments", Install ne inflatable material immediately packboard hooks. Modif adjacent to the fasteners which retain the double hook packboard packboard main entry door by lower liner an adding "pRESS I aligne latch. The small punctures are viewing port: Remove believed to be the result of the TEST" circuit panel and remov slide raft inflatable material associated circuitry.
contacting the several exposed cap nuts on the inside the EFFECTIVITY packboard used to install the double hook packboard latch. Line No. chry 3 airplanes 15 158, 160, 194 198, and 260 thru In addition, the operator reported number 272.
several instances of slide/raft airplanes, and 747F airplanes.
packboard fitting inserts loosening and breaking out of the MANPOWER 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.
Total Manhours - 20 Airplane Down-Time - 10 Hours Pe Door
MATERIAL INFORMATION Numerous reports Kit Price* indications of low pressure in the pressure vessel have been received 63B12678-1 No Charge four operators. 63B12678-2 No Charge containing a remote indicating 63B12678-5 No Charge switch for operation of the low 63B12678-6 No Charge pressure warning light have been 63B12678-7 No Charge susceptible to corrosion. A means for direct viewing of the pressure * See Paragraph I.F. for term pressure and conditions applicable to pric therefore been developed in order and delivery information.
to delete the warning light function.
Summary Page 1 of
BOEING SERVICE BULLETIN NO. 747-25-2425
REMOVE PRESS TO TEST PANEL.
INSTALL COVER INSTALL NEW
OVER CUTOUT PACKBOARD
IN MIDDLE LINER LATCH HOOKS
REMOVE ASSOCIATED WIRING
PACKBOARD
• LOWER LINER
MAKE CUTOUT IN PACKBOARD AND LOWER LINER. INSTALL
COVER DOOR OVER CUTOUT
IN PACKBOARD
ADD NEW BEARING PLATE
ADD NEW
FIBERGLASS PLUG
EXISTING LOWER
MOUNTING BRACKET
TYPICAL LEFT SIDE DOOR SHOWN
RIGHT SIDE DOOR OPPOSITE Aug 25/78 Summary Page 2 of 2
BOEING BOEING COMMERCIAL AIRPLANE COMPANY P.O. BOX 3707 SEATTLE. WASHINGTON 98124
SERVICE BULLETIN ATA NO: 747-25-2425 SYSTEM: 2569 747 DATE: August 25, 1978 REVISION 1: September 1979 SUBJECT: SLIDE/RAFT PACKBOARD IMPROVEMENTS AND PRESSURE
VESSEL VIEWING PROVISIONS I. Planning Information A. Effectivity Airplanes Affected equivalent change will be incorporated in production in accordance with PRR 75524-55 and 75524- applicable airplanes other than those listed below.
CUSTOMER & MODEL & CUSTOMER NO. SERIES MFG. SERIAL NO. REGISTRY NO.
AF (AIR FRANCE) RA266 747-128 21141 N40116 RD651 747-2288 21326 F--BPVS RD652 747-228B 21429 F--BPVT RD653 747-228B 21537 N1252E
AI (AIR INDIA) RA725 747-2378 21182 VT-EDU RA726 747-2378 21446 VT-EFJ RA727 747-2378 21473 VT-EFO Aug 25/78 747-25-2425 REV. 1: Sep 7/79 Page 1 of 20
BOEING SERVICE BULLETIN NO. 747-25-2425 CUSTOMER & CUSTOMER NO. MODEL & SERIES MFG. SERIAL NO. REGISTRY NO.
AR (ARGENTINAS) RD121 747-2878 21189 LV-LZD AT (ROYAL AIR MOROC) RD671 747-2868 21615 CN-RME BA (BRITISH AIRWAYS ) RD135&RD136 RA318 RD131-RD134 747-136 747-2368 747-2368 21213 21238 THRU 21241 21350 AND 21351 G-BDXA G-BDPV G-BDXE THRU G-BDXD AND G-BOXF RD137 747-2368 21536 G-BDXG CI (CHINA AIRLINES) RD551 747-2098 21454 B-1864 RG171 747SP-09 21300 B-1862
GN (AIR GABON) RD661 747-2028 21468 F-ODJG IA (IRAQI AIRWAYS) RJ301&RJ302 747-270C 21180 AND 21181 YI-AGN AND YI-AGO IR (IRAN NATIONAL AIRLINES) RG101&RG102 RD681 CRD682 747-2868 747SP-86 21217 AND 20998 AND 20999 21218 EP-IAG AND EP-IAH EP-IAA AND EP-IAS RG103 7475P-86 21093 EP-IAC KL (ROYAL DUTCH) RD 601ERD602 747-2068 21110 AND 21111 PH-BUH AND PH-BUI RD603 747-2068 21547 PH-BUK KU (KUWAIT AIRWAYS RD201&RD202 747-2693 CORP.) 21541 AND 21542 9K-ADA AND 9K-ADB LH (LUFTHANSA) RD641&RD642 747-2308 21220 AND 21221 D-ABYJ AND D-ABYK RD643 747-2308 21380 D-ABYL.
RD644 747-2309 21588 D-ABYM Aug 25/78 REV. 1: Sep 7/79 747-25-2425 2
BOEING SERVICE BULLETIN NO. 747-25--2425
CUSTOMER & MODEL & CUSTOMER NO. SERIES MFG. SERIAL NO. REGISTRY NO.
LY (EL AL ISRAEL) RJ152 747-2586 21594 4X-AXF
ME (MIDDLE EAST AIRLINES) RD 621-RD623 747-2048 21097 THRU 21099 OD-AGH THRU OD-AGJ
PA (PAN AMERICAN) RGU01-RG005 747SP-21 21022 THRU 21026 N530PA THRU N534PA RG006ERG007 747SP-21 21547 AND 21548 N537PA AND N538PA 7475P-21 21441 N536PA
QF (QANTAS)
- RB010 747-238B 21054 VH-EBJ RBO11 747-2388 21140 VH-EBK RB 012 747-238B 21237 VH-EBL RD513&RD514 747-2388 21352 AND 21353 VH-EBM AND VH-EBN RD515&RD516 747-2388 21657 AND 21658 VH-£8O AND VH-EBP RD531 747-238B 21354 VH-ECA (SYRIAN ARAB AIRLINES) RG141ERG142 747SP-94 21174 AND 21175 YK-ДНА AND YK-АНВ
RJ (ROYAL JORDANIAN) RD691&RD692 747-203B 21251 AND 21252 JY-AFA AND JY-AFB
SA (SOUTH AFRICAN) RB 071-RB073 747-244B 20237 THRU 20239 2S-SAL THRU ZS-SAN RB 074ER8075 747-2448 20556 AND 20557 2S-SAO AND ZS-SAP RG121-RG123 7475P-44 21132 THRU 21134 ZS-SPA THRU ZS-SPC RG124ERG125 7475P-44 21253 AND 21254 ZS-SPD AND ZS-SPE RG 126 7475P-44 21263 2S-SPF
SK (SCANDINAVIAN) RD591 747-2838 21381 LN-RNA
SQ (SINGAPORE AIRLINES LTD) RD045 747-2128 21162 9V-SQE RD046 747-212B 21316 9V-SQF RD047 747-2128 21439 9V-S0G Aug 25/18 747-25-2425 REV. 1: Sep 7/79 3
BOEING SERVICE BULLETIN NO. 747-25-2425
CUSTOMER & MODEL & CUSTOMER NO. SERIES MFG. SERIAL NO. REGISTRY NO.
SV (SAUDI ARABIAN EXEC) RH101 7475P-68 21652 HZ-HM1
WD (WARDAIR) RD171 747-211B 21516 C-GXRA Aug 25/78 747-25-2425 REV. 1: Sep 7/79
BOEING SERVICE BULLETIN NO. 747-25-24:25
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 Nomenclature 60B50082-10 Slide/Raft Assembly 60B50082-11 Slide/Raft Assembly 60B50082-12 Slide/Raft Assembly 60B50082-13 Slide/Raft Assembly 60B50082-14 Slide/Raft Assembly 60B50082-15 Slide/Raft Assembly 60850082-67 Slide/Raft Assembly 60B50082-68 Slide/Raft Assembly 60B50082-69 Slide/Raft Assembly 60B50082-70 Slide/Raft Assembly 60B50082-71 Slide/Raft Assembly 60B50082-72 Slide/Raft Assembly 60B50082-109 Slide/Raft Assembly 60B50082-110 Slide/Raft Assembly 60B50082-111 Slide/Raft Assembly 60B50082-112 Slide/Raft Assembly 60B50082-113 Slide/Raft Assembly 60B50082-114 Slide/Raft Assembly 60B50082-143 Slide/Raft Assembly 60B50082-144 Slide/Raft Assembly 60B50082-145 Slide/Raft Assembly 60B50082-146 Slide/Raft Assembly 60B50082-147 Slide/Raft Assembly 60B50082-147 Slide/Raft Assembly 60B50082-171 Slide/Raft Assembly 60B50082-172 Slide/Raft Assembly 60B50082-173 Slide/Raft Assembly 60B50082-174 Slide/Raft Assembly 60B50082-175 Slide/Raft Assembly 60B50082-176 Slide/Raft Assembly 60B50082-185 Slide/Raft Assembly 60B50082-186 Slide/Raft Assembly 60B50082-187 Slide/Raft Assembly 60B50082-188 Slide/Raft Assembly 60B50082-189 Slide/Raft Assembly 60B50082-190 Slide/Raft Assembly 60B50082-191 Slide/Raft Assembly 60B50082-192 Slide/Raft Assembly Aug 25/78 747-25-2425 5
BOEING SERVICE BULLETIN NO. 747-25-2425 Part Number Nomenclature 60B50082-193 Slide/Raft Assembly 60B50082-194 Slide/Raft Assembly 60B50082-195 Slide/Raft Assembly 60B50082-196 Slide/Raft Assembly 60B50082-197 Slide/Raft Assembly 60B50082-198 Slide/Raft Assembly 60B50082-199 Slide/Raft Assembly 60B50082-200 Slide/Raft Assembly 60B50082-201 Slide/Raft Assembly 60B50082-202 Slide/Raft Assembly 60B50082-203 Slide/Raft Assembly 60B50082-204 Slide/Raft Assembly 60B50082-205 Slide/Raft Assembly 60B50082-206 Slide/Raft Assembly 60B50082-213 Slide/Raft Assembly 60B50082-214 Slide/Raft Assembly 60B50082-215 Slide/Raft Assembly 60B50082-216 Slide/Raft Assembly 60B50082-217 Slide/Raft Assembly 60B50082-218 Slide/Raft Assembly 60B50082-219 Slide/Raft Assembly 60B50082-220 Slide/Raft Assembly 60B50082-239 Slide/Raft Assembly 60B50082-240 Slide/Raft Assembly 60B50082-241 Slide/Raft Assembly 60B50082-242 Slide/Raft Assembly 60B50082-243 Slide/Raft Assembly 60B50082-244 Slide/Raft Assembly 60B50082-245 Slide/Raft Assembly 60B50082-246 Slide/Raft Assembly 60B50082-247 Slide/Raft Assembly 60B50082-248 Slide/Raft Assembly 60B50082-249 Slide/Raft Assembly 60B50082-250 Slide/Raft Assembly 60B50082-251 Slide/Raft Assembly 60B50082-252 Slide/Raft Assembly 60B50082-255 Slide/Raft Assembly 60B50082-256 Slide/Raft Assembly 60B50082-257 Slide/Raft Assembly 60B50082-258 Slide/Raft Assembly 60B50082-259 Slide/Raft Assembly 60B50082-260 Slide/Raft Assembly Aug 25/78 747-25-2425
BOEING SERVICE BULLETIN NO. 747-25-2425 Part Number Nomenclature 60B50082-261 Slide/Raft Assembly 60B50082-262 Slide/Raft Assembly 60B50082-263 Slide/Raft Assembly 60B50082-264 Slide/Raft Assembly 60B50082-265 Slide/Raft Assembly 60B50082-266 Slide/Raft Assembly 60B50082-267 Slide/Raft Assembly 60B50082-268 Slide/Raft Assembly 60B50082-271 Slide/Raft Assembly 60B50082-272 Slide/Raft Assembly 60B50082-273 Slide/Raft Assembly 60B50082-274 Slide/Raft Assembly 60B50082-275 Slide/Raft Assembly 60B50082-276 Slide/Raft Assembly 60B50082-277 Slide/Raft Assembly 60B50082-278 Slide/Raft Assembly 60B50082-279 Slide/Raft Assembly 60B50082-280 Slide/Raft Assembly 60B50082-281 Slide/Raft Assembly 60B50082-282 Slide/Raft Assembly 60B50082-283 Slide/Raft Assembly 60B50082-284 Slide/Raft Assembly 60B50082-285 Slide/Raft Assembly 60B50082-286 Slide/Raft Assembly 60850082-287 Slide/Raft Assembly 60B50082-288 Slide/Raft Assembly 60B50082-289 Slide/Raft Assembly 60B50082-290 Slide/Raft Assembly Aug 25/78 747-25-2425
BOEING SERVICE BULLETIN NO. 747-25-2425 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 addition, this modification is to provide a means for retaining determination of status of slide/raft inflation packboard latch hooks together.
system pressure vessels.
operator has recently reported finding several slide ratts, on one recently delivered airplane, with small to the fasteners which retain the punctures in the inflatable material immediately adjacent double hook packboard of the slide raft inflatable latch. The small punctures are believed to be the result material contacting the exposed nuts on the inside of the packboard used to install the double hook packboard latch.
slide/raft addition, the operator reported several instances of packboard fitting inserts loosening 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. for operation of the low pressure warning light have been Gauges containing a remote indicating switch susceptible to corrosion. A means for direct viewing of the pressure vessel pressure gauge has therefore been developed.
Aug 25/78 747-25-2425-
BOEING SERVICE BULLETIN NO. 747-25-2425 C. Description 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 slide/raft assemblies. Cancurrent incorporation of Boeing concurrently on commonly affected airplanes Service Bulletin 747-25-2425 and B.F. Goodrich Service Bulltin 25-048 and 25-049 is required.
Aug 25/78 747-25-2425 - 9