AD 74-19-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper Aircraft Inc. | PA-28-235 | Airworthiness Directives; Piper Models PA-28-235, PA-32-260, PA-32-300, PA-34-200 Airplanes |
| aircraft | Piper Aircraft Inc. | PA-32-260 | Airworthiness Directives; Piper Models PA-28-235, PA-32-260, PA-32-300, PA-34-200 Airplanes |
| aircraft | Piper Aircraft Inc. | PA-32-300 | Airworthiness Directives; Piper Models PA-28-235, PA-32-260, PA-32-300, PA-34-200 Airplanes |
| aircraft | Piper Aircraft Inc. | PA-34-200 | Airworthiness Directives; Piper Models PA-28-235, PA-32-260, PA-32-300, PA-34-200 Airplanes |
Unsafe Condition
Improperly formed lightening holes in the outer wing spars may result in cracks in the lightening hole flange radii.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect both sides of left and right spar around the first (and for PA-34 series, also the second) lightening holes outboard of the fish mouth of the main spar splice for die stamping marks and cracks. Replace the outboard spar with a serviceable one or repair if required, and report findings.
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Compliance Time
within the next ten hours time in service after the effective date of this AD
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Affected Aircraft
Piper Models PA-28-235 (serial numbers 28-7410001 through 28-7410090), PA-32-260 (32-7400001 through 32-7400047), PA-32-300 (32-7440001 through 32-7440147), and PA-34-200 (34-7450001 through 34-7450205) certificated in all categories.
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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