Elevator Bellcrank Pivot - Inspection

Published: Mar 23, 2018
Effective: Mar 22, 2018
Deadline: Apr 22, 2018

AI-generated summary of the official EASA document. Verify against the PDF before acting.

What to do

Operators must inspect the elevator bellcrank pivot joint bolt according to Pacific Aerospace Mandatory Service Bulletin PACSB/XL/097 issue 1 or later revisions. If a short bolt P/N AN4-20 is found, it must be replaced with bolt P/N AN4-21 before further flight. The inspection must be completed by the next scheduled maintenance or by 22 April 2018, whichever is later.

Summary

The Airworthiness Directive DCA/750XL/28 Elevator Bellcrank Pivot - Inspection is issued by the Civil Aviation Authority of New Zealand and applies to Pacific Aerospace 750XL aircraft with serial numbers up to and including 215. This directive mandates inspection of the elevator bellcrank pivot joint bolt to ensure the correct bolt length is installed. It specifically addresses the potential use of a bolt part number AN4-20 that is too short, requiring replacement with bolt part number AN4-21 if found.

What changed

This new Airworthiness Directive introduces a mandatory inspection requirement for the elevator bellcrank pivot joint on Pacific Aerospace 750XL aircraft. It requires operators to verify the bolt length and replace any short bolts (P/N AN4-20) with the correct longer bolts (P/N AN4-21) to prevent unsafe conditions.

Why it matters

This directive is critical for maintaining flight safety by preventing potential mechanical failure in the elevator control system caused by an incorrectly sized bolt. Operators, maintenance organizations, and compliance teams must ensure adherence to avoid unsafe conditions and regulatory non-compliance.

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