# Gulfstream Customer Bulletin 231: Revision A

- Rights: © Gulfstream Aerospace Corporation. Filed by the FAA in regulations.gov docket FAA-2020-0831; AD 2021-06-04 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.
- Document: [Gulfstream Customer Bulletin 231](https://openairdocs.org/service-documents/gulfstream/cb-231.md)
- Title as filed: Customer Bulletin 231 Revision A
- Pages: 11
- PDF: https://openairdocs.org/files/sha256/ef/ed/efed13cfba7b40b66779a075f1ef6b1aadc60ad31992198b7790b325fa7e19e2
- Page: https://openairdocs.org/service-documents/gulfstream/cb-231/file/efed13cfba7b

## Text

This text is OCR from a scan. OCR can misread letters and numbers. Each page's text from the PDF; open the PDF at a page with #page=N.

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### Page 7 (OCR)

Gulfstream™  GV
A GENERAL DYNAMICS COMPANY
CUSTOMER BULLETIN
O. Record compliance with this customer bulletin in the aircraft permanent maintenance records
and return aircraft to flight status.
P. Report compliance with this customer bulletin to Gulfstream CMP by faxing the attached service
reply card with the CMP task card(s) sign-off or uploading PDF forms to MyGulfstream, MyCMP
Document Upload.
If technical assistance is required, contact your area Gulfstream Field Service Representative or call
Gulfstream Customer Support at 800-810-GULF (4853) or 912-965-4178 (fax 912-965-4184).
RBL 6 FLOOR BEAM (REF)
FLOORBOARD 10C
FLOORBOARD 9C
FS
576
FS
426
Floorboard Access
Figure 1
April 12, 2019  Customer Bulletin No. 231
Revision A, July 30, 2019  Page 5 of 8

### Page 8 (OCR)

Gulfstream™  GV™
A GENERAL DYNAMICS COMPANY
CUSTOMER BULLETIN
0.500  6.000
- A
UPPER LINK HARDWARE (REF):
SLEEVE, 1159BM50548-11
BOLT, NAS6606-20
WASHER, AN960C616
NUT, MS21042L6
FLOOR BEAM
SUPPORT LINK
SUPPORT LINK  SLEEVE (5)
1159BM50566-1 / -3  NUT (2)
PREFERRED SPARE:
1159BM50566-7  WASHER (3)  • BOLT (4)
- A  SEALANT OVERCOAT (1)
LOWER LINK HARDWARE (REF):
SLEEVE, 1159BM50548-19  (PREFERRED SPARE: 1159BM50548-23)  BOLT NAS6606-17  WASHER, AN960C616  VIEW LOOKING FORWARD  UP VIEW LOOKING OUTBOARD  4  DETAIL A-A
NUT, MS21042L6
Floor Beam Support Link Installation - FS 499
Figure 2
BL
0. 000  6.000
DISCONNECT AND ROTATE
LINK INBOARD TO INSPECT
BUSHING.
INSPECT SUPPORT LINK
LOWER BUSHING FOR
CORROSION
Floor Beam Support Link Inspection - FS 499
Figure 3
April 12, 2019  Customer Bulletin No. 231
Revision A, July 30, 2019  Page 6 of 8

### Page 9 (OCR)

Gulfstream™  GV™
A GENERAL DYNAMICS COMPANY
CUSTOMER BULLETIN
5. 000
GVFS
531.000
UPPER LINK HARDWARE (REF):
SLEEVE, 1159BM50548-11
BOLT, NAS6606-20  FLOOR BEAM
WASHER, AN960C616  SUPPORT LINK
NUT, MS21042L6
/ SLEEVE (10)
SUPPORT LINK  NUT (7)  - BOLT (9)
1159BM50535-1 / -3
PREFERRED SPARE:  WASHER (8)
1159BM50535-7
∞ B  SEALANT OVERCOAT (6)
LOWER LINK HARDWARE (REF):
SLEEVE, 1159BM50548-17
(PREFERRED SPARE: 1159BM50548-21)
BOLT NAS6606-17
WASHER, AN960C616  UP  DETAIL B-B
NUT, MS21042L6  VIEW LOOKING FORWARD  < FWD J  VIEW LOOKING OUTBOARD
Floor Beam Support Link Installation - FS 531
Figure 4
0. 000
O
DISCONNECT AND ROTATE
SUPPORT LINK INBOARD TO
INSPECT BUSHING.
INSPECT SUPPORT LINK
LOWER BUSHING FOR
CORROSION
Floor Beam Support Link Inspection - FS 531
Figure 5
April 12, 2019  Customer Bulletin No. 231
Revision A, July 30, 2019  Page 7 of 8

### Page 10 (OCR)

Gulfstream™  GV™
A GENERAL DYNAMICS COMPANY
CUSTOMER BULLETIN
0.000  6:000
GVFS
569. 500
C
UPPER LINK HARDWARE (REF):  FLOOR BEAM
SLEEVE, 1159BM50548-11  SUPPORT LINK
BOLT, NAS6606-20
WASHER, AN960C616  NUT (12)
NUT, MS21042L6
WASHER (13)  / SLEEVE (15)
- BOLT (14)
SUPPORT LINK
1159BM50535-1 / -3
PREFERRED SPARE:
1159BM50535-7  SEALANT OVERCOAT (11)
LOWER LINK HARDWARE (REF):
SLEEVE, 1159BM50548-17
(PREFERRED SPARE: 1159BM50548-21)
BOLT NAS6606-17
WASHER, AN960C616
NUT, MS21042L6  = C
DETAIL C-C
VIEW LOOKING FORWARD  UP  VIEW LOOKING OUTBOARD
Floor Beam Support Link Installation - FS 569.5
Figure 6
6. 000
DISCONNECT AND ROTATE
SUPPORT LINK INBOARD TO
INSPECT BUSHING.
INSPECT SUPPORT LINK
LOWER BUSHING FOR
CORROSION
Floor Beam Support Link Inspection - FS 569.5
Figure 7
April 12, 2019  Customer Bulletin No. 231
Revision A, July 30, 2019  Page 8 of 8

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