AD 63-01-01

final rule
Data completeness: 70%

Airworthiness Directives; Grumman Model G-164 Aircraft

AD Number
63-01-01
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.

Applicability

TypeManufacturerModelDetails
aircraft Allied Ag Cat Productions, Inc. G-164 Airworthiness Directives; Grumman Model G-164 Aircraft
aircraft Allied Ag Cat Productions, Inc. G-164A Airworthiness Directives; Grumman Model G-164 Aircraft
aircraft Allied Ag Cat Productions, Inc. G-164B Airworthiness Directives; Grumman Model G-164 Aircraft
aircraft Allied Ag Cat Productions, Inc. G-164B-15T Airworthiness Directives; Grumman Model G-164 Aircraft
aircraft Allied Ag Cat Productions, Inc. G-164B-20T Airworthiness Directives; Grumman Model G-164 Aircraft
aircraft Allied Ag Cat Productions, Inc. G-164B-34T Airworthiness Directives; Grumman Model G-164 Aircraft
aircraft Allied Ag Cat Productions, Inc. G-164B (with 73 inch wing gap) Airworthiness Directives; Grumman Model G-164 Aircraft
aircraft Allied Ag Cat Productions, Inc. G-164C Airworthiness Directives; Grumman Model G-164 Aircraft
aircraft Allied Ag Cat Productions, Inc. G-164D Airworthiness Directives; Grumman Model G-164 Aircraft
aircraft Allied Ag Cat Productions, Inc. G-164D (with 73 inch wing gap) Airworthiness Directives; Grumman Model G-164 Aircraft

Unsafe Condition

Engine mount washers (P/N S-136-1-D) installed on Model G-164 aircraft, Serial Numbers 101 through 150 inclusive, do not conform to approved Grumman specifications, which could lead to engine loss.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Replace the engine mount washers with either Grumman-furnished washers meeting P/N S-136-1-D specifications or washers made from 2017T-T4 aluminum alloy with specific dimensions and anodizing per MIL-A-8625A.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

within the next 50 hours' time in service after the effective date of the AD

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Grumman Model G-164 Aircraft, Serial Numbers 101 through 150 inclusive

AI-generated summary from the source AD text. Verify against the official source before acting.

Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

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