Manufacturer
Airbus Helicopters
Number
FAA 2019-05-05
Model(s)
BK117A-1/A-3/ A-4, BK117B-1/B-2, BK117C-1
Published Date
Effective Date
Summary
Retains the requirements of AD 97-26-03, which mandated visual inspections for cracks in the ribbed area of the main rotor mast flange, but removes a certain mast from the applicability.
UUID
86