AD 2020-19-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus Helicopters Deutschland GmbH | MBB-BK 117 D-2 | 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.
Federal Register Abstract
The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Deutschland GmbH Model MBB-BK 117 D-2 helicopters. This AD was prompted by a report of an erroneous low rotor revolutions per minute (RPM) indication after establishing a one engine inoperative (OEI) condition. This AD requires a software (SW) modification for the aircraft management computer (AMC). The FAA is issuing this AD to address the unsafe condition on these products.
Applicability Source Text
Show captured applicability text from the source AD
(c) Applicability
This AD applies to all Airbus Helicopters Deutschland GmbH Model
MBB-BK 117 D-2 helicopters, certificated in any category.
Document Text
Show stored source text (verify against official source)
[Federal Register Volume 85, Number 184 (Tuesday, September 22, 2020)]
[Rules and Regulations]
[Pages 59413-59416]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2020-20763]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2020-0342; Product Identifier 2019-SW-078-AD; Amendment
39-21242; AD 2020-19-01]
RIN 2120-AA64
Airworthiness Directives; Airbus Helicopters Deutschland GmbH
Helicopters
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
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SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all
Airbus Helicopters Deutschland GmbH Model MBB-BK 117 D-2 helicopters.
This AD was prompted by a report of an erroneous low rotor revolutions
per minute (RPM) indication after establishing a one engine inoperative
[[Page 59414]]
(OEI) condition. This AD requires a software (SW) modification for the
aircraft management computer (AMC). The FAA is issuing this AD to
address the unsafe condition on these products.
DATES: This AD is effective October 27, 2020.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of October 27,
2020.
ADDRESSES: For service information identified in this final rule,
contact Airbus Helicopters, 2701 N Forum Drive, Grand Prairie, TX
75052; telephone 972-641-0000 or 800-232-0323; fax 972-641-3775; or at
<a href="https://www.airbus.com/helicopters/services/technical-support.html">https://www.airbus.com/helicopters/services/technical-support.html</a>. You
may view this service information at the FAA, Office of the Regional
Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N-321, Fort
Worth, TX 76177. For information on the availability of this material
at the FAA, call 817-222-5110. It is also available on the internet at
<a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching for and locating Docket No.
FAA-2020-0342.
Examining the AD Docket
You may examine the AD docket on the internet at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching for and locating Docket No. FAA-2020-
0342; or in person at Docket Operations between 9 a.m. and 5 p.m.,
Monday through Friday, except Federal holidays. The AD docket contains
this final rule, any comments received, and other information. The
address for Docket Operations is U.S. Department of Transportation,
Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200
New Jersey Avenue SE, Washington, DC 20590.
FOR FURTHER INFORMATION CONTACT: George Schwab, Aviation Safety
Engineer, Safety Management Section, Rotorcraft Standards Branch, FAA,
10101 Hillwood Pkwy., Fort Worth, TX 76177; telephone 817-222-5110;
email <a href="/cdn-cgi/l/email-protection#d2b5b7bda0b5b7fca1b1baa5b3b092b4b3b3fcb5bda4"><span class="__cf_email__" data-cfemail="0562606a7762602b76666d726467456364642b626a73">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Discussion
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 by adding an AD that would apply to all Airbus Helicopters
Deutschland GmbH Model MBB-BK 117 D-2 helicopters. The NPRM published
in the Federal Register on April 28, 2020 (85 FR 23489). The NPRM was
prompted by a report of an erroneous low rotor RPM indication after
establishing an OEI condition. The NPRM proposed to require a SW
modification for the AMC. 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.
The European Union Aviation Safety Agency (EASA), which is the
Technical Agent for the Member States of the European Union, has issued
EASA AD 2019-0208, dated August 22, 2019 (referred to after this as the
Mandatory Continuing Airworthiness Information, or ``the MCAI''), to
correct an unsafe condition for all Airbus Helicopters Deutschland GmbH
Model MBB-BK 117 D-2 helicopters. You may examine the MCAI in the AD
docket on the internet at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching for
and locating Docket No. FAA-2020-0342.
Comments
The FAA gave the public the opportunity to participate in
developing this final rule. The FAA received no comments on the NPRM or
on the determination of the cost to the public.
Conclusion
The FAA reviewed the relevant data and determined that air safety
and the public interest require adopting this final rule as proposed,
except for minor editorial changes. The FAA has determined that these
minor changes:
<bullet> Are consistent with the intent that was proposed in the
NPRM for addressing the unsafe condition; and
<bullet> Do not add any additional burden upon the public than was
already proposed in the NPRM.
Related Service Information Under 1 CFR Part 51
Airbus Helicopters has issued Alert Service Bulletin MBB-BK117 D-2-
42A-005, Revision 3, dated June 6, 2019. This service information
describes procedures for a SW modification for the AMC.
This service information is reasonably available because the
interested parties have access to it through their normal course of
business or by the means identified in the ADDRESSES section.
Differences Between This AD and the MCAI or Service Information
The MCAI provides a 60-day compliance time for accomplishing the SW
modification. This AD requires completion of the SW modification within
50 hours time-in-service.
Costs of Compliance
The FAA estimates that this AD affects 30 helicopters of U.S.
registry. The FAA estimates the following costs to comply with this AD:
Estimated Costs for Required Actions
----------------------------------------------------------------------------------------------------------------
Cost per Cost on U.S.
Labor cost Parts cost product operators
----------------------------------------------------------------------------------------------------------------
1 work-hour x $85 per hour = $85............................. $3,000 $3,085 $92,550
----------------------------------------------------------------------------------------------------------------
Authority for This Rulemaking
Title 49 of the United States Code specifies the FAA's authority to
issue rules on aviation safety. Subtitle I, section 106, describes the
authority of the FAA Administrator. Subtitle VII: Aviation Programs,
describes in more detail the scope of the Agency's authority.
The FAA is issuing this rulemaking under the authority described in
Subtitle VII, Part A, Subpart III, Section 44701: General requirements.
Under that section, Congress charges the FAA with promoting safe flight
of civil aircraft in air commerce by prescribing regulations for
practices, methods, and procedures the Administrator finds necessary
for safety in air commerce. This regulation is within the scope of that
authority because it addresses an unsafe condition that is likely to
exist or develop on products identified in this rulemaking action.
Regulatory Findings
This AD will not have federalism implications under Executive Order
13132. This AD will not have a substantial direct effect on the States,
on the relationship between the national government and the States, or
on the distribution of power and responsibilities among the various
levels of government.
For the reasons discussed above, I certify that this AD:
[[Page 59415]]
(1) Is not a ``significant regulatory action'' under Executive
Order 12866,
(2) Will not affect intrastate aviation in Alaska, and
(3) Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
Adoption of the Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA amends 14 CFR part 39 as follows:
PART 39--AIRWORTHINESS DIRECTIVES
0
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
Sec. 39.13 [Amended]
0
2. The FAA amends Sec. 39.13 by adding the following new airworthiness
directive (AD):
2020-19-01 Airbus Helicopters Deutschland GmbH: Amendment 39-21242;
Docket No. FAA-2020-0342; Product Identifier 2019-SW-078-AD.
(a) Effective Date
This AD is effective October 27, 2020.
(b) Affected ADs
None.
(c) Applicability
This AD applies to all Airbus Helicopters Deutschland GmbH Model
MBB-BK 117 D-2 helicopters, certificated in any category.
(d) Subject
Air Transport Association (ATA) of America Code 42, Integrated
Modular Avionics.
(e) Reason
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.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Definitions
(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.
[GRAPHIC] [TIFF OMITTED] TR22SE20.037
(2) Group 1: Helicopters that have an affected part installed.
(3) Group 2: Helicopters that do not have an affected part
installed.
(h) Software Modification
(1) For Group 1: Within 50 hours time-in-service after the
effective date of this AD, update the 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.
(2) Replacement on a helicopter of an affected part with an AMC
having the corresponding upgraded SW installed, as listed in Figure
1 to paragraphs (g)(1), (h), and (i) of this AD, or later SW upgrade
is an acceptable alternative method of compliance for the
requirements of paragraph (h)(1) of this AD for that helicopter.
(i) Parts Installation Prohibition
Do not install on any helicopter an affected part, and do not
upload any SW identified as ``pre-modification SW'' in Figure 1 to
paragraphs (g)(1), (h), and (i) of this AD, or earlier SW version,
on any AMC, as required by paragraph (i)(1) or (2) of this AD, as
applicable.
(1) For Group 1: After modification of that helicopter as
specified in paragraph (h) of this AD.
(2) For Group 2: As of the effective date of this AD.
(j) Alternative Methods of Compliance (AMOCs)
(1) The Manager, Rotorcraft Standards Branch, FAA, may approve
AMOCs for this AD. Send your proposal to: George Schwab, Aviation
Safety Engineer, Safety Management Section, Rotorcraft Standards
Branch, 10101 Hillwood Pkwy., Fort Worth, TX 76177; telephone 817-
222-5151; email <a href="/cdn-cgi/l/email-protection#cdf4e08c9e9ae08b999ae08c80828ee09fa8bcb8a8beb9be8dabacace3aaa2bb"><span class="__cf_email__" data-cfemail="ebd2c6aab8bcc6adbfbcc6aaa6a4a8c6b98e9a9e8e989f98ab8d8a8ac58c849d">[email protected]</span></a>.
(2) For operations conducted under a 14 CFR part 119 operating
certificate or under 14 CFR part 91, subpart K, notify your
principal inspector or lacking a principal inspector, the manager of
the local flight standards district office or certificate holding
district office, before operating any aircraft complying with this
AD through an AMOC.
[[Page 59416]]
(k) Related Information
(1) Refer to Mandatory Continuing Airworthiness Information
European Union Aviation Safety Agency (EASA) 2019-0208, dated August
22, 2019. This EASA AD may be found in the AD docket on the internet
at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching for and locating Docket
No. FAA-2020-0342.
(2) For service information identified in this AD, contact
Airbus Helicopters, 2701 N Forum Drive, Grand Prairie, TX 75052;
telephone 972-641-0000 or 800-232-0323; fax 972-641-3775; or at
<a href="https://www.airbus.com/helicopters/services/technical-support.html">https://www.airbus.com/helicopters/services/technical-support.html</a>.
You may view this service information at the FAA, Office of the
Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N-
321, Fort Worth, TX 76177.
(l) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference (IBR) of the service information listed
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this service information as applicable to do
the actions required by this AD, unless this AD specifies otherwise.
(i) Airbus Helicopters Alert Service Bulletin MBB-BK117 D-2-42A-
005, Revision 3, dated June 6, 2019.
(ii) [Reserved]
(3) For service information identified in this AD, contact
Airbus Helicopters, 2701 N Forum Drive, Grand Prairie, TX 75052;
telephone 972-641-0000 or 800-232-0323; fax 972-641-3775; or at
<a href="https://www.airbus.com/helicopters/services/technical-support.html">https://www.airbus.com/helicopters/services/technical-support.html</a>.
(4) You may view this service information at the FAA, Office of
the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room
6N-321, Fort Worth, TX 76177. For information on the availability of
this material at the FAA, call 817-222-5110.
(5) You may view this service information that is incorporated
by reference at the National Archives and Records Administration
(NARA). For information on the availability of this material at
NARA, email <a href="/cdn-cgi/l/email-protection#cbadaeafb9aeace5a7aeacaaa78ba5aab9aae5aca4bd"><span class="__cf_email__" data-cfemail="402625243225276e2c2527212c002e2132216e272f36">[email protected]</span></a>, or go to: <a href="https://www.archives.gov/federal-register/cfr/ibr-locations.html">https://www.archives.gov/federal-register/cfr/ibr-locations.html</a>.
Issued on September 1, 2020.
Gaetano A. Sciortino,
Deputy Director for Strategic Initiatives, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2020-20763 Filed 9-21-20; 8:45 am]
BILLING CODE 4910-13-P
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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