AD 78-23-11
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Allied Ag Cat Productions, Inc. | G-164 | Airworthiness Directives; GRUMMAN G-164 S/N's 1 thru 400, G-164A S/N's 401 and up, G-164B S/N's 01B and up, G-164C S/N's 01C and up, certificated in all categories. |
| aircraft | Allied Ag Cat Productions, Inc. | G-164A | Airworthiness Directives; GRUMMAN G-164 S/N's 1 thru 400, G-164A S/N's 401 and up, G-164B S/N's 01B and up, G-164C S/N's 01C and up, certificated in all categories. |
| aircraft | Allied Ag Cat Productions, Inc. | G-164B | Airworthiness Directives; GRUMMAN G-164 S/N's 1 thru 400, G-164A S/N's 401 and up, G-164B S/N's 01B and up, G-164C S/N's 01C and up, certificated in all categories. |
| aircraft | Allied Ag Cat Productions, Inc. | G-164B-15T | Airworthiness Directives; GRUMMAN G-164 S/N's 1 thru 400, G-164A S/N's 401 and up, G-164B S/N's 01B and up, G-164C S/N's 01C and up, certificated in all categories. |
| aircraft | Allied Ag Cat Productions, Inc. | G-164B-20T | Airworthiness Directives; GRUMMAN G-164 S/N's 1 thru 400, G-164A S/N's 401 and up, G-164B S/N's 01B and up, G-164C S/N's 01C and up, certificated in all categories. |
| aircraft | Allied Ag Cat Productions, Inc. | G-164B-34T | Airworthiness Directives; GRUMMAN G-164 S/N's 1 thru 400, G-164A S/N's 401 and up, G-164B S/N's 01B and up, G-164C S/N's 01C and up, certificated in all categories. |
| aircraft | Allied Ag Cat Productions, Inc. | G-164B (with 73 inch wing gap) | Airworthiness Directives; GRUMMAN G-164 S/N's 1 thru 400, G-164A S/N's 401 and up, G-164B S/N's 01B and up, G-164C S/N's 01C and up, certificated in all categories. |
| aircraft | Allied Ag Cat Productions, Inc. | G-164C | Airworthiness Directives; GRUMMAN G-164 S/N's 1 thru 400, G-164A S/N's 401 and up, G-164B S/N's 01B and up, G-164C S/N's 01C and up, certificated in all categories. |
Unsafe Condition
Aileron balance cables (P/N A1860-101 and A1860-401) may contain broken wires at the wing root pulley, which could result in loss of aileron control.
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Required Actions
Inspect aileron cables for broken wires near the right and left wing roots within 50 hours in service after the effective date. Repeat inspections every 600 hours in service. Replace cables with broken wires prior to next flight with unused cables of the same part number or approved equivalent.
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Compliance Time
Within the next 50 hours in service after the effective date, unless already accomplished within the last 550 hours. Subsequent inspections within every 600 hours in service thereafter.
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Affected Aircraft
Grumman G-164 S/N 1 thru 400, G-164A S/N 401 and up, G-164B S/N 01B and up, G-164C S/N 01C and up, certificated in all categories.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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