# Ag-Cat Service Bulletin 61: No revision named

- Rights: © GRUMMAN AMERICAN AVIATION CORPORATION. Filed by the FAA in regulations.gov docket FAA-2011-0149; AD 2011-05-07 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.
- Document: [Ag-Cat Service Bulletin 61](https://openairdocs.org/service-documents/ag-cat/sb-61.md)
- Title as filed: U.S. DOT/FAA - Service Bulletin
- Pages: 1
- PDF: https://openairdocs.org/files/sha256/ad/8a/ad8a35e6ba3bd8fc1d66ed836a9189388e3d5e1f7e47dd0014f9f994fe40db05
- Page: https://openairdocs.org/service-documents/ag-cat/sb-61/file/ad8a35e6ba3b

## 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.

### Page 1 (OCR)

05/19/2008  07:10  8708862489  AMERICAN AGVIATION  PAGE  02/02
ERUMMAN  AMERICAN AVIATION  SERVICE
CORPORATION
FO BOX 2206 SAVANNAN GEORGIA 31402
(8121864 - 3000  TELEX NO. 54-6470
AG-CAT SERVICE BULLETIN #61
DATE:  JUNE 6, 1977
SUBJECT:  RUDDER TUBE CORROSION
APPLICABILITY:  G-164 - S/N 1 through 400
G-164A - S/N 401 through 1674
G-164B - S/N 1B through 79B
Field reports indicate that excessive corrosion may occur
on the main tubular spar (P/N A1203-11) of the rudder assembly.  It
is therefore recommended that, upon receipt of this Bulletin, the
following be accomplished.
(1) Remove the rudder assembly from the aircraft.
(2)  Remove the bellcrank assembly from the A1203-33 rudder
fitting.
(3)  Drill a .50 dia (¿") hole through the bottom of the
A1203-33 fitting and inspect the interior and exterior
of the main tube for corrosion.
(4) If no signs of corrosion are noted, fill the tube with
linseed oil and drain. Plug the .50 dia (¿") hole with
Scotch caulking compound and reinstall the rudder
bellcrank to the 1203-33 fitting.
(5)  If corrosion is noted, determine the extent of the
corrosion and repair accordingly.
(6) If a repair is required, repairy with Step #4 above  after completion of the
Drill. 50 dia
(¿") hole
25
A1203-33
A1203-33
© GRUMMAN AMERICAN AVIATION CORPORATION 1977

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