Airworthiness directives › 2020-19-01
AD 2020-19-01 Airworthiness Directives; Airbus Helicopters Deutschland GmbH Helicopters
Models named: MBB-BK 117 D-2. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to all Airbus Helicopters Deutschland GmbH Model MBB-BK 117 D-2 helicopters, certificated in any category.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
(1) Affected part: An aircraft management computer (AMC) having a software (SW) version installed that is identified as “pre-modification SW” in Figure 1 to paragraphs (g)(1), (h), and (i) of this AD, or earlier SW version. ER22SE20.037 (2) Group 1: Helicopters that have an affected part installed. (3) Group 2: Helicopters that do not have an affected part installed.
Unsafe condition
This AD was prompted by a report of an erroneous low rotor revolutions per minute (RPM) indication after establishing a one engine inoperative condition. The FAA is issuing this AD to address erroneous low RPM indications, which could cause the pilot to make inappropriate control inputs, resulting in damage to the helicopter or injury to occupants.
Affected ADs
None.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1