Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes
AI-generated summary for informational purposes only. Not legal advice. See the original source for the authoritative text.
The FAA is proposing to supersede AD 2021-11-08 for all Pilatus PC-6 series airplanes. This new proposed rule requires operators to revise the Airworthiness Limitations Section (ALS) of the aircraft maintenance manual or instructions for continued airworthiness to incorporate new or more restrictive tasks and limitations issued by EASA. Key additions include life limits for the control column pitch trim relay. The proposal shortens the compliance window to 30 days after the effective date instead of 12 months. It also mandates corrective actions if discrepancies are found during required tasks. The goal is to prevent failure of structural components and loss of airplane control due to corrosion, wear, cracks, or unaddressed life-limited parts.
AI-generated summary. May contain errors. Refer to official sources for legal decisions.
Key Changes
- Supersedes AD 2021-11-08 and incorporates EASA AD 2025-0281 by reference
- Requires revision of ALS in AMM or ICA within 30 days after effective date
- Introduces new life limits for the control column pitch trim relay
+ 3 more changes with Pro
Obligations
What this law requires
Submit written comments on the NPRM by May 21, 2026 to FAA using procedures specified in 14 CFR 11.43 and 11.45
Revise the Airworthiness Limitations Section (ALS) of the aircraft maintenance manual (AMM) or instructions for continued airworthiness (ICA) to incorporate new or more restrictive airworthiness limitations and tasks issued by EASA AD 2025-0281
Incorporate life limits for the control column pitch trim relay into the ALS of the AMM or ICA
Complete the required ALS revisions within 30 days after the effective date of the final rule
Perform corrective actions if discrepancies are found during required inspection and maintenance tasks