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Fri, Sep 27, 2019

AD: De Havilland Aircraft of Canada Limited Airplanes

AD NUMBER: 2019-18-05

PRODUCT: Certain De Havilland Aircraft of Canada Limited (Type Certificate Previously Held by Bombardier, Inc.) Model DHC-8- 400 series airplanes.

ACTION: Final Rule.

SUMMARY: This AD was prompted by reports of the nose landing gear (NLG) locking in a partially extended position due to loose bushings on the lock link of the NLG locking mechanism.

This AD requires repetitive inspections of the bushings and the lower lock link of the NLG for discrepancies, and corrective actions if necessary.

This AD also requires replacement of the lower lock link of the NLG, which terminates the repetitive inspections.

DATES: This AD is effective October 31, 2019.

COST: The FAA estimates that this AD affects 64 airplanes of U.S. registry. Operators may incur the following costs in order to comply with this AD:

  • Inspection: 2 work-hours × $85 per hour = $170 per inspection cycle.
  • Replacement:  6 work-hours × $85 per hour = $510 labor. Parts: $5,923. Cost per airplane $6,433.
FMI: AD

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