AD 2020-19-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | Helicopters Deutschland GmbH | Airworthiness Directives; Airbus Helicopters Deutschland GmbH Helicopters |
Unsafe Condition
erroneous low rotor revolutions per minute (RPM) indication after establishing a one engine inoperative condition
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
update the software (SW) of each affected part to the corresponding upgraded SW, as listed in Figure 1 to paragraphs (g)(1), (h), and (i) of this AD, in accordance with the Accomplishment Instructions, Section 3.B.2, of Airbus Helicopters Alert Service Bulletin MBB-BK117 D-2-42A-005, Revision 3, dated June 6, 2019
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 50 hours time-in-service after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
all Airbus Helicopters Deutschland GmbH Model MBB-BK 117 D-2 helicopters, certificated in any category
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.