Propeller — Propeller Hub — Inspection / Replacement
- Published
- Effective
- Deadline
- Replaces
- 2009-0134
- Replaces
- 2009-0134-E
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators must inspect the propeller hub before the next flight after the effective date and then every 50 flight hours using the instructions in the applicable AERO Mandatory Service Bulletin. Any discrepancies found require immediate corrective action before further flight. Additionally, any newly installed ELPROP 3-1-1P propeller must pass an inspection before the next flight and be inspected regularly thereafter as specified.
Summary
EASA Airworthiness Directive 2021-0189-E is an emergency directive addressing inspection and replacement requirements for AERO AT Sp. z o.o. ELPROP 3-1-1P propellers, commonly installed on AERO AT-3R100 and AT-4LSA aeroplanes. The directive mandates inspections of the propeller hub to detect cracks near blade attachment points that could lead to blade loss and loss of aircraft control.
What changed
This directive supersedes the previous EASA AD 2009-0134-E and expands the applicability to all serial numbers of ELPROP 3-1-1P propellers. It introduces updated inspection instructions through AERO Mandatory Service Bulletin EPB.02.B for propellers with serial numbers 3E.089 and higher, while retaining the inspection requirements for earlier serial numbers.
Why it matters
This directive is critical for aviation professionals because undetected cracks in the propeller hub can result in catastrophic propeller blade loss and subsequent loss of aircraft control. Operators and maintenance organizations must ensure compliance to maintain aircraft safety and airworthiness, preventing potential accidents related to propeller failure.
Get the next one by email
New ADs and bulletins for Aero (Propellers) ELPROP, AERO AT AT-3R100 and AERO AT AT-4LSA, summarized like this page, every Monday.