AD 63-07-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper Aircraft Inc. | PA-23 | Airworthiness Directives; Piper All Models PA-23 and PA-23-160 Aircraft |
| aircraft | Piper Aircraft Inc. | PA-23-160 | Airworthiness Directives; Piper All Models PA-23 and PA-23-160 Aircraft |
Unsafe Condition
Cracks and loose or working rivets have been found in the attachment area of the rudder trim tab horn, P/N 17059-00, to the rudder trim tab skin, P/N 17068-27. Cracked rudder trim tab ribs P/N 17068-17 also have been found.
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Required Actions
Visually inspect with at least a 10-power magnifying glass the rudder trim tab horn attach rivets for looseness or evidence of rivet working and the adjacent tab skin for cracks. If skin cracks, loose or working rivets are found, inspect the rudder trim tab support rib, P/N 17068-17 for cracks. If defects are found, repair per CAR Part 18 or replace the affected parts with an airworthy assembly before further flight.
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Compliance Time
Within the next 10 hours' time in service unless already accomplished within the last 90 hours' time in service and within each 100 hours' time in service thereafter from the last inspection (for aircraft with 690+ hours on effective date) or between 600 and 700 hours' time in service and within each 100 hours' time in service thereafter (for aircraft with less than 690 hours on effective date).
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Affected Aircraft
Piper Aircraft Inc. models PA-23 and PA-23-160 aircraft.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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