HA_424_424-003_RevECN_Sht1-2_NONE_HI-424-003-ABS TRANSCEIVER -AM- MOON PIPE INSTL.pdf

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Engineering Change Notice 1 1 - 1 7 - 0 4 FOR HI-IAU\KAI, TASK SSI -040 (03 )

Drawings a f fec ted:

H I - 4 2 4 - 0 0 3 Rev A H I - 4 6 1 A - 0 0 3 Rev -

C

Subject Synopsis:

Lengths of t ransducer cables for Kongsberg EM 300 devices are reduced f rom 20 meters to 15 meters. This change necessitates rerouting the coble "Moonpipes" to reduce length where possible to under 15 meters, or to under 20 meters, with splice in a dry compar tment , where necessary.

H I - 4 2 4 - 0 0 3 Rev A:

New routing for Receive Array:

From wet t ransducers, through bo t tom shell, conveyed through 6" or 8" or 10" diameter schedule 80 pipe, f rom approximately 26 " off vessel centerl ine stbd, up and curving forward, through lightening hole at f rame 35, diagonally through WT BHD 34, diagonally through WT BHD 33, passing through of t sound room, diagonally through WT BHD 3 1 , turning upwards through 10' 0" f lat at f rame 2 6 - 2 5 at 4 ' 6" stbd, enlarged to 8 " if necessary, to on MCT at 16' 0 " ABL (approx 12" above Load Line). At this point, cables emerge into the laundry room, and then go forward into a new dry 6, 8, or 10" sch 80 pipe passageway, f rom bhd 24, through EG tank, across centerl ine, elbowing up, reducing as required to 8", emerging through main deck at 1 7 - 1 6 at approximately 6' 6" off CL port, through on MCT, and thence to Transceiver.

New routing for Transmit Array:

From wet t ransducers, through bot tom shell, conveyed through 8 or 10" diameter schedule 80 pipe, f rom approximately f rame 3 3 - 2 3 3 2 " port, curving forward diagonally, penetrat ing transverse f rame 32, continuing in direct diagonal nature, through ballast tank, through bhd 24 into fuel oil tank, through swash bhds, turning up and enlarging to 12", through main deck, through MCT, to Transceiver. MCT shall be a 12" size (300 m m ) Brottberg or equivalent.

B General

A

Where bhds or f rames are penetrated through new cuts, pipes shall be welded to cuts with continuous welds suitably sized per ABS welding guidelines for appropriate st ructura l members. Where f raming members must be cropped, new headers shall be put in place to maintain the original panel size, or smaller panel size as appropriate.

Vent pipes as per referenced original drawing shall be installed to lower moonpipes up to fr^<=^h^nr^ dffck ns dpsrr ihpd jp referenced drawing New dry pipe passage shall not require venting.

H I - 4 6 1 A - 0 0 3 Rev -

6" pipe, f rame 29 - 24 port , not required. 4 " pipe, f rame 34 - 24 port, not required.

A P P R O V E D This approval covers only ABS requirements and does not include items not required by ABS.

See Comments in ABS letter dated:

NOV 2 4 2004

».BS AME

By Directior

ENGINEERING CHANGE NOTICE # 1 1 - 1 7 - 0 4

NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION

OFFICE OF MARINE & AVIATION OPERATIONS

CdWTRAiCT f

Seaworthy Systems, Inc.

M •» Ma m>%S)

50-ABNA-0-00032

1IAR-SSI-040 (03)

DSGN 11-17-04

WRP

WRP

NOM APPROVAL

NCAA SHIP HflALAKAl

ENGINEERING CHANGE NOTICE

TRANSCEIVER AND

MOON PIPE

INSTALLATION

SIZE

D

CAGE CODE

0YLJ5

SCALE: AS SHOWN

NOAA DRAWING NUMBER

HI -424 -003

REV

ECN

CAO FILENAME Ni-4a4-oo3^ SHT 1 OF 2

24 23 22 21 20 19 18 17

D

FIVE (5) PIPES

FOR EK60 SYSTEM.

FIELD-RUN TO ALLOW

ADEQUATE CLEARANCE

SEE REF 6 FOR

ADOmONAL DETAILS.

14-B

20 15

PLAN 20 -C (14 -01

MAIN DECK. LKG DOWN TO HULL

SCALE: 1/4" = 1'

CABLE SPLICES FOR

RX ARE IN OVHD OF

LAUNDRY ROOM &

INSIDE DRY PIPE

OVHD

B

(N) 3" SCH 80 BRANCH VENTS COMBINE

TO 4" UNE. FOLLOW RTE OF EXIST TK

VENT LINES TO FBD DK. SEE DETAIL 16-D.

W LINES FOR EK60 ARE NOT VENTED.

PROFILE 20 -B f l 4 - B )

LOOKING STARBOARD

SCALE: 1/4" = 1'

2' 10" BOW-UNE

(APPROXIMATELY WHERE THE PROFILE

14-B IS TAKEN

TX CABLE ROUTE. «8" OR 10". DIRECT PIPE RUN

(NO SPLICES) THRU BLST TANK. INTO FO TK. UP

TO SODA MACHINE AREA.

SKETCH ECN 1 1 - 1 7 - 0 4

APPROVED

This approval covers only ABS requirements and does not include items not required by ABS.

See Comments in ABS letter dated:

NOV 2 4 2004

ABS AMERICAS

By Direction' ^

SKETCH ECN 1 1 - 1 7 - 0 4

SIZE

D

CAGE CODE

0YLJ5

SCALE: AS SHOWN

NOAA DRAWING NUMBER

H I - 4 2 4 - 0 0 3

REV

tCH

CAD RLENAME SHT 1 OF 2

D

C

B

A

24 23 22 21 20 19 18 17