AD 74-12-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron Aviation Inc. | 36 | Airworthiness Directives; BEECH Models 36, A36, 58, 58A, 60 and A60 Aircraft |
| aircraft | Textron Aviation Inc. | 58 | Airworthiness Directives; BEECH Models 36, A36, 58, 58A, 60 and A60 Aircraft |
| aircraft | Textron Aviation Inc. | 58A | Airworthiness Directives; BEECH Models 36, A36, 58, 58A, 60 and A60 Aircraft |
| aircraft | Textron Aviation Inc. | 60 | Airworthiness Directives; BEECH Models 36, A36, 58, 58A, 60 and A60 Aircraft |
| aircraft | Textron Aviation Inc. | A36 | Airworthiness Directives; BEECH Models 36, A36, 58, 58A, 60 and A60 Aircraft |
| aircraft | Textron Aviation Inc. | A60 | Airworthiness Directives; BEECH Models 36, A36, 58, 58A, 60 and A60 Aircraft |
Unsafe Condition
Failure of the aft-facing seat back supports could result in inadequate structural protection during minor crash conditions.
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Required Actions
Install two improved seat back supports on each aft-facing seat in accordance with Beechcraft Service Instruction No. 0591-314, Rev. 1, or later approved revisions or equivalent approved by the FAA. Use part numbers 58-530193-1 for Models 36, A36, 58, 58A, and 60, and 58-530193-3 for Model A60.
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Compliance Time
within the next 100 hours' time in service after the effective date of this AD
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Affected Aircraft
BEECH Models 36 (E-1 to E-434), A36 (E-1 to E-434), 58 (TH-1 to TH-335), 58A (TH-1 to TH-335), 60 (P-4 to P-240), and A60 (P-4 to P-240) aircraft equipped with optional aft-facing seats.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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