AD 78-10-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron Aviation Inc. | 3N | Airworthiness Directives; BEECH Models D18C, D18S, E18S, E18S-9700, G18S, H-18, C-45G, TC-45G, C-45H, TC-45J (SNB-5), JRB-6, 3N, 3M, and 3NM Airplanes |
| aircraft | Textron Aviation Inc. | 3NM | Airworthiness Directives; BEECH Models D18C, D18S, E18S, E18S-9700, G18S, H-18, C-45G, TC-45G, C-45H, TC-45J (SNB-5), JRB-6, 3N, 3M, and 3NM Airplanes |
| aircraft | Textron Aviation Inc. | C-45G | Airworthiness Directives; BEECH Models D18C, D18S, E18S, E18S-9700, G18S, H-18, C-45G, TC-45G, C-45H, TC-45J (SNB-5), JRB-6, 3N, 3M, and 3NM Airplanes |
| aircraft | Textron Aviation Inc. | C-45H | Airworthiness Directives; BEECH Models D18C, D18S, E18S, E18S-9700, G18S, H-18, C-45G, TC-45G, C-45H, TC-45J (SNB-5), JRB-6, 3N, 3M, and 3NM Airplanes |
| aircraft | Textron Aviation Inc. | D18C | Airworthiness Directives; BEECH Models D18C, D18S, E18S, E18S-9700, G18S, H-18, C-45G, TC-45G, C-45H, TC-45J (SNB-5), JRB-6, 3N, 3M, and 3NM Airplanes |
| aircraft | Textron Aviation Inc. | D18S | Airworthiness Directives; BEECH Models D18C, D18S, E18S, E18S-9700, G18S, H-18, C-45G, TC-45G, C-45H, TC-45J (SNB-5), JRB-6, 3N, 3M, and 3NM Airplanes |
| aircraft | Textron Aviation Inc. | E18S | Airworthiness Directives; BEECH Models D18C, D18S, E18S, E18S-9700, G18S, H-18, C-45G, TC-45G, C-45H, TC-45J (SNB-5), JRB-6, 3N, 3M, and 3NM Airplanes |
| aircraft | Textron Aviation Inc. | E18S-9700 | Airworthiness Directives; BEECH Models D18C, D18S, E18S, E18S-9700, G18S, H-18, C-45G, TC-45G, C-45H, TC-45J (SNB-5), JRB-6, 3N, 3M, and 3NM Airplanes |
| aircraft | Textron Aviation Inc. | G18S | Airworthiness Directives; BEECH Models D18C, D18S, E18S, E18S-9700, G18S, H-18, C-45G, TC-45G, C-45H, TC-45J (SNB-5), JRB-6, 3N, 3M, and 3NM Airplanes |
| aircraft | Textron Aviation Inc. | H18 | Airworthiness Directives; BEECH Models D18C, D18S, E18S, E18S-9700, G18S, H-18, C-45G, TC-45G, C-45H, TC-45J (SNB-5), JRB-6, 3N, 3M, and 3NM Airplanes |
Unsafe Condition
Failure of the lower rudder torque tube due to cracks in the area of the access hole as noted in figure 1 of this AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 30 days after the effective date, visually inspect the lower rudder torque tube for cracks. If no cracks are found, reinspect every 30 days. If cracks exceed 1/2 inch, replace with Part Number 452606-7 and reinspect. If cracks are 1/2 inch or less, repair using an approved method and reinspect. Terminate requirements after approved modifications.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 30 days after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Beech Models D18C, D18S, E18S, E18S-9700, G18S, H-18, C-45G, TC-45G, C-45H, TC-45J (SNB-5), JRB-6, 3N, 3M, and 3NM modified with STC SA1243WE, SA1016WE, or SA360WE.
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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