AD 67-29-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| 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
Loose rivets attaching the rod ends of the elevator forward pushrod assembly (P/N A1847-1 and A1847-3) may lead to failure of the assembly.
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Required Actions
Visually inspect the fore and aft ends of the pushrod assemblies for loose rivets or elongated holes. If found, remove rivets and repair by reaming holes and installing specified bolts, washers, and nuts. Replace the assembly if holes exceed .251 inches. Discontinue inspections after repair or approved equivalent.
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Compliance Time
Within the next 50 hours' time in service (for aircraft with ≥250 hours on effective date) or before 300 hours' total time (for <250 hours), then every 100 hours' time in service thereafter.
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Affected Aircraft
Grumman Model G-164 aircraft, serial numbers 1 through 400, with elevator forward pushrod assemblies P/N A1847-1 (serials 1-100) or A1847-3 (serials 101-400).
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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