Thu, Aug 23, 2018
AD NUMBER: 2018-17-0
PRODUCT: Certain Bombardier, Inc., Model DHC-8-400 series airplanes.
ACTION: Final Rule.
SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2014-05-28, which applied to aircraft listed above.
AD 2014-05-28 required revising the maintenance or inspection program, as applicable.
This AD requires revising the maintenance or inspection program, as applicable, to include a revised task. This AD was prompted by a determination that the interval from Maintenance Review Board (MRB) task number 323100-202 should not be escalated, and that Certification Maintenance Requirements (CMR) task number 323100-102 should be applicable to all Model DHC-8-400 series airplanes, regardless of which main landing gear (MLG) up-lock assembly is installed.
DATES: This AD is effective September 25, 2018.
COST: The FAA estimates that this AD affects 69 airplanes of U.S. registry. The cost of compliance is estimated as follows:
- Revising the maintenance or inspection program takes an average of 90 work-hours per operator, although this number may vary from operator to operator. In the past, the FAA has estimated that this action takes 1 work-hour per airplane. Since operators incorporate maintenance or inspection program changes for their affected fleet(s), the FAA has determined that a per-operator estimate is more accurate than a per-airplane estimate. Therefore, total cost per operator is estimated to be $7,650 (90 work-hours x $85 per work-hour).
FMI: AD
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