Summary
The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Deutschland GmbH Model MBB-BK 117 D-3 helicopters. This AD was prompted by a determination that certain bolts installed on the horizontal control rods of the flight controls were not dye penetrant inspected for cracks during manufacturing and thus could lead to bolt failure. This AD requires replacement of affected bolts with bolts that are eligible for installation. This AD also prohibits installing an affected bolt on any helicopter. The FAA is issuing this AD to address the unsafe condition on these products.
Directive Details
AD Number
FAA-2025-5040
Document Number
2026-05885
Type
Rule
Publication Date
March 26, 2026
Effective Date
April 30, 2026
Affected Manufacturer
Airbus Helicopters Deutschland GmbH
Criticality
important
Emergency
No
Docket ID
Docket No. FAA-2025-5040
Topics
Official Documents
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