Summary
The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Deutschland GmbH (AHD) Model MBB-BK 117 C-1 helicopters. This AD was prompted by a report of a louver box assembly detaching in flight due to incorrect installation. This AD requires repetitively accomplishing a play check of the affected louver box assembly and, depending on the results of the check, accomplishing corrective actions. The FAA is issuing this AD to address the unsafe condition on these products.
Directive Details
AD Number
FAA-2026-11805
Document Number
2026-20722
Type
Rule
Publication Date
October 9, 2026
Effective Date
October 26, 2026
Comments Close
November 23, 2026
Affected Manufacturer
Airbus Helicopters Deutschland GmbH (AHD)
Criticality
routine
Emergency
No
Docket ID
Docket No. FAA-2026-11805
Topics
Official Documents
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