Superseded. This AD was superseded by AD 2025-19-05. Verify which one applies to your serial and effectivity before any maintenance action.
AD 2019-16-09
Effective 10/09/2019 · Published 09/04/2019
Airworthiness Directives; Bombardier, Inc., Airplanes
Summary
The FAA is adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model DHC-8-400 series airplanes. This AD was prompted by reports of cracked elevator power control unit (PCU) brackets on the horizontal stabilizer rear spar and cracking on the elevator front spar. This AD requires one-time inspections for cracks and damage of the elevator PCU brackets and surrounding area, horizontal stabilizer r…