AD 69-07-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Pilatus Aircraft Limited | PC-6 | Airworthiness Directives; Pilatus Model PC-6 Airplanes |
| aircraft | Pilatus Aircraft Limited | PC-6-H1 | Airworthiness Directives; Pilatus Model PC-6 Airplanes |
| aircraft | Pilatus Aircraft Limited | PC-6-H2 | Airworthiness Directives; Pilatus Model PC-6 Airplanes |
| aircraft | Pilatus Aircraft Limited | PC-6/350 | Airworthiness Directives; Pilatus Model PC-6 Airplanes |
| aircraft | Pilatus Aircraft Limited | PC-6/350-H1 | Airworthiness Directives; Pilatus Model PC-6 Airplanes |
| aircraft | Pilatus Aircraft Limited | PC-6/350-H2 | Airworthiness Directives; Pilatus Model PC-6 Airplanes |
| aircraft | Pilatus Aircraft Limited | PC-6/A | Airworthiness Directives; Pilatus Model PC-6 Airplanes |
| aircraft | Pilatus Aircraft Limited | PC-6/A-H1 | Airworthiness Directives; Pilatus Model PC-6 Airplanes |
| aircraft | Pilatus Aircraft Limited | PC-6/A-H2 | Airworthiness Directives; Pilatus Model PC-6 Airplanes |
| aircraft | Pilatus Aircraft Limited | PC-6/B-H2 | Airworthiness Directives; Pilatus Model PC-6 Airplanes |
Unsafe Condition
Internal corrosion of the aileron mass balance unit P/N 6106.11 can cause structural damages.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the external surface of the mass balance support arms for corrosion evidence (blistering paint or discoloration) within 10 hours' time in service after the effective date, and repeat every 10 hours. If corrosion is found, replace the unit with P/N 6106.11 (marked yellow) or P/N 111.45.08.001 before further flight. Discontinue inspections after replacement.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 10 hours' time in service after the effective date, and thereafter at intervals not to exceed 10 hours' time in service from the last inspection
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Pilatus Aircraft Limited Model PC-6 Airplanes with serial numbers 1 through 701, 2001 through 2018, 2023, 2025 through 2029, 2040 and 2041.
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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