# AD 63-22-02: Throttle Control Pivot Bolt - Type: Airworthiness directive - Status: Current - Products: Allied Ag Cat Productions G-164, G-164A, G-164B, G-164B-15T, G-164B-20T, G-164B-34T, G-164B (with 73 inch wing gap), G-164C, G-164D and G-164D (with 73 inch wing gap) - Effective: October 26, 1963 - Superseded by: Nothing supersedes this AD - Product type: Aircraft, Small airplane - Registered aircraft: 564 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F05B9ADE7C09BF6686256A54006FA9F8.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/63-22-02 ## The airworthiness directive 63-22-02 GRUMMAN: Amdt. 634 Part 507 Federal Register October 26, 1963. Applies Only to Model G-164 Series Aircraft Equipped With Continental W670 Series Engines, Serial Numbers 1 through 229 Inclusive. Compliance required as indicated. As a result of excessive wear of the throttle control pivot bolt, which can cause loss of throttle control, accomplish the following: (a) (1) Within 25 hours' time in service after the effective date of this AD, remove and visually inspect the throttle control pivot bolt (AN 23-13) for wear. If the bolt is worn, measure bolt shank. (2) If wear in excess of 0.020 inch is detected on any surface of the bolt, rework the carburetor throttle arm for a 0.250 diameter reamed hole, and installation of an A1658-1 bushing, AN 3-10A bolt, AN 960-10 washers and AN 365-1032 self-locking nut per Grumman Service Bulletin No. 25 dated August 29, 1963. (Grumman Engineering Change Order No. S164-1292.) (3) If no wear is found on the AN 23-13 bolt, thepivot bolt may be continued in service provided that the bolt is repetitively inspected at intervals of 50 hours' time in service. (b) Repetitive inspections required by (a) (3) may be discontinued when the modifications established by a (a)(2) are accomplished. (Grumman Service Bulletin No. 25 dated August 29, 1963, with enclosure (a) Grumman Engineering Change Order No. S164-1292 covers this same subject.) This directive effective October 26, 1963. ## Affected data sheets (1) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS 1A16](https://openairdocs.org/tcds/1A16): Allied Ag Cat Productions Inc.; names 8 of 10 models: G-164B, G-164D (with 73 inch wing gap), G-164C, G-164, G-164B-20T, G-164A, G-164B-34T, G-164B-15T ## Registered aircraft it may apply to (OpenAirDocs) Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment. - Aircraft: 564 (564 by airframe model, 0 by engine model) - Makers: Grumman Acft ENG Cor-Schweizer 325, Grumman 119, Schweizer 64, Gulfstream-Schweizer A/C 36, Grumman American Avn. 12, Ag-Cat 5, Grumman/Schweizer 2, Gulfstream Schweizer A/C 1 Models with the most aircraft: - [Grumman Acft ENG Cor-Schweizer G-164B](https://openairdocs.org/model/grumman-acft-eng-cor-schweizer-g-164b): 157 aircraft (airframe model) - [Grumman Acft ENG Cor-Schweizer G-164A](https://openairdocs.org/model/grumman-acft-eng-cor-schweizer-g-164a): 150 aircraft (airframe model) - [Grumman G-164A](https://openairdocs.org/model/grumman-g-164a): 63 aircraft (airframe model) - [Schweizer G-164B](https://openairdocs.org/model/schweizer-g-164b): 56 aircraft (airframe model) - [Grumman G-164](https://openairdocs.org/model/grumman-g-164): 52 aircraft (airframe model) - [Gulfstream-Schweizer A/C GULFSTREAM AM G-164B](https://openairdocs.org/model/gulfstream-schweizer-a-c-gulfstream-am-g-164b): 33 aircraft (airframe model) - [Grumman Acft ENG Cor-Schweizer G-164C](https://openairdocs.org/model/grumman-acft-eng-cor-schweizer-g-164c): 18 aircraft (airframe model) - [Grumman American Avn. G-164B](https://openairdocs.org/model/grumman-american-avn-g-164b): 6 aircraft (airframe model) - [Ag-Cat G-164B](https://openairdocs.org/model/ag-cat-g-164b): 5 aircraft (airframe model) - [Grumman American Avn. G-164](https://openairdocs.org/model/grumman-american-avn-g-164): 3 aircraft (airframe model) - [Grumman American Avn. G-164A](https://openairdocs.org/model/grumman-american-avn-g-164a): 3 aircraft (airframe model) - [Gulfstream-Schweizer A/C GULFSTREAM AM G-164D](https://openairdocs.org/model/gulfstream-schweizer-a-c-gulfstream-am-g-164d): 3 aircraft (airframe model) - [Schweizer G-164B-20T](https://openairdocs.org/model/schweizer-g-164b-20t): 3 aircraft (airframe model) - [Grumman G164C](https://openairdocs.org/model/grumman-g164c): 2 aircraft (airframe model) - [Grumman G-164B](https://openairdocs.org/model/grumman-g-164b): 2 aircraft (airframe model) - [Grumman/Schweizer G-164D](https://openairdocs.org/model/grumman-schweizer-g-164d): 2 aircraft (airframe model) - [Schweizer G164B-34T](https://openairdocs.org/model/schweizer-g164b-34t): 2 aircraft (airframe model) - [Gulfstream Schweizer A/C GULFSTREAM AM G-164C](https://openairdocs.org/model/gulfstream-schweizer-a-c-gulfstream-am-g-164c): 1 aircraft (airframe model) - [Schweizer G164A](https://openairdocs.org/model/schweizer-g164a): 1 aircraft (airframe model) - [Schweizer G-164C](https://openairdocs.org/model/schweizer-g-164c): 1 aircraft (airframe model) All 22 models: https://openairdocs.org/ad/63-22-02/models.md Every aircraft: https://openairdocs.org/ad/63-22-02/aircraft.md Its text cites no advisory circulars or STCs. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.