
[Federal Register Volume 88, Number 184 (Monday, September 25, 2023)]
[Rules and Regulations]
[Pages 65583-65585]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2023-20672]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2023-1210; Project Identifier MCAI-2022-01530-E; 
Amendment 39-22546; AD 2023-18-05]
RIN 2120-AA64


Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG 
Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all 
Rolls-Royce Deutschland Ltd & Co KG (RRD) Model RB211-535C-37 engines. 
This AD is prompted by the manufacturer revising the existing engine 
time limits manual (TLM) to introduce new or more restrictive 
airworthiness limitations and associated thresholds and intervals for 
life-limited parts. This AD requires revising the airworthiness 
limitations section (ALS) of the operator's existing approved engine 
maintenance or inspection program, as applicable, to incorporate new or 
more restrictive instructions and associated thresholds and intervals 
for life-limited parts, as specified in a European Union Aviation 
Safety Agency (EASA) AD, which is proposed for incorporation by 
reference (IBR). The FAA is issuing this AD to address the unsafe 
condition on these products.

DATES: This AD is effective October 30, 2023.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of October 30, 
2023.

ADDRESSES: 
    AD Docket: You may examine the AD docket at regulations.gov under 
Docket No. FAA-2023-1210; 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, the mandatory continuing airworthiness 
information (MCAI), 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

[[Page 65584]]

W12-140, 1200 New Jersey Avenue SE, Washington, DC 20590.
    Material Incorporated by Reference:
     For the EASA AD identified in this final rule, contact 
EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; phone: +49 221 
8999 000; email: [email protected]; website: easa.europa.eu. You may 
find this material on the EASA website at ad.easa.europa.eu.
     You may view this material at the FAA, Airworthiness 
Products Section, Operational Safety Branch, 1200 District Avenue, 
Burlington, MA 01803. For information on the availability of this 
material at the FAA, call (817) 222-5110. It is also available at 
regulations.gov under Docket No. FAA-2023-1210.

FOR FURTHER INFORMATION CONTACT: Sungmo Cho, Aviation Safety Engineer, 
FAA, 2200 South 216th Street, Des Moines, WA 98198; phone: (781) 238-
7241; email: [email protected].

SUPPLEMENTARY INFORMATION:

Background

    The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 
CFR part 39 by adding an AD that would apply to all RRD Model RB211-
535C-37 engines. The NPRM published in the Federal Register on June 13, 
2023 (88 FR 38409). The NPRM was prompted by AD 2022-0236, dated 
December 1, 2022 (EASA AD 2022-0236) (also referred to after this as 
the MCAI), issued by EASA, which is the Technical Agent for the Member 
States of the European Union. The MCAI states that the ALS for RB211-
535C-37 engines, which is approved by EASA, is defined and published in 
TLM T-211(535)-5RR, and that these airworthiness limitations have been 
identified as mandatory for continued airworthiness. The MCAI also 
states that the manufacturer published a revised engine TLM to 
introduce new or more restrictive instructions and associated 
thresholds and intervals for life-limited parts.
    In the NPRM, the FAA proposed to require revising the ALS of the 
operator's existing approved engine maintenance or inspection program, 
as applicable, to incorporate new or more restrictive instructions and 
associated thresholds and intervals for life-limited parts, which are 
specified in EASA AD 2022-0236, described previously, except for any 
differences identified as exceptions in the regulatory text of this AD. 
The FAA is issuing this AD to address the unsafe condition on these 
products.
    You may examine the MCAI in the AD docket at regulations.gov under 
Docket No. FAA-2023-1210.

Discussion of Final Airworthiness Directive

Comments

    The FAA received a comment from The Boeing Company, who supported 
the NPRM without change.

Conclusion

    These products have been approved by the aviation authority of 
another country and are approved for operation in the United States. 
Pursuant to the FAA's bilateral agreement with this State of Design 
Authority, it has notified the FAA of the unsafe condition described in 
the MCAI referenced above. The FAA reviewed the relevant data, 
considered the comment received, and determined that air safety 
requires adopting the AD as proposed. Accordingly, the FAA is issuing 
this AD to address the unsafe condition on these products. Except for 
minor editorial changes, this AD is adopted as proposed in the NPRM.

Related Service Information Under 1 CFR Part 51

    The FAA reviewed EASA AD 2022-0236, which specifies procedures for 
operators to revise the ALS of their existing approved engine 
maintenance or inspection program to incorporate new or more 
restrictive instructions and associated thresholds and intervals for 
life-limited parts described in the revised engine TLM, as applicable 
to each engine model. EASA AD 2022-0236 also describes actions for 
replacing life-limited parts, performing maintenance tasks, and 
performing corrective actions for any finding of discrepancy as 
referenced in the engine TLM.
    This material is reasonably available because the interested 
parties have access to it through their normal course of business or by 
the means identified in ADDRESSES.

Costs of Compliance

    The FAA estimates that this AD affects 2 engines installed on 
airplanes of U.S. registry.
    The FAA estimates the following costs to comply with this AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                    Cost per       Cost on U.S.
               Action                        Labor cost           Parts cost        product         operators
----------------------------------------------------------------------------------------------------------------
Revise ALS of the operator's          1 work-hour x $85 per                $0              $85             $170
 existing approved engine              hour = $85.
 maintenance or inspection program.
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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:
    (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.

[[Page 65585]]

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

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:

2023-18-05 Rolls-Royce Deutschland Ltd & Co KG: Amendment 39-22546; 
Docket No. FAA-2023-1210; Project Identifier MCAI-2022-01530-E.

(a) Effective Date

    This airworthiness directive (AD) is effective October 30, 2023.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Rolls-Royce Deutschland Ltd & Co KG Model 
RB211-535C-37 engines.

(d) Subject

    Joint Aircraft Service Component (JASC) Code 7230, Turbine 
Engine Compressor Section.

(e) Unsafe Condition

    This AD was prompted by the manufacturer revising the engine 
time limits manual (TLM) to introduce new or more restrictive 
instructions and associated thresholds and intervals for life-
limited parts. The FAA is issuing this AD to prevent failure of 
life-limited parts. The unsafe condition, if not addressed, could 
result in uncontained release of a critical part, damage to the 
engine, and damage to the airplane.

(f) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.

(g) Required Actions

    Except as specified in paragraph (h) of this AD: Perform all 
required actions within the compliance times specified in, and in 
accordance with, European Union Aviation Safety Agency (EASA) AD 
2022-0236, dated December 1, 2022 (EASA AD 2022-0236).

(h) Exceptions to EASA AD 2022-0236

    (1) Where EASA AD 2022-0236 defines the AMP as the approved 
Aircraft Maintenance Programme containing the tasks on the basis of 
which the scheduled maintenance is conducted to ensure the 
continuing airworthiness of each operated engine, this AD defines 
the AMP as the aircraft maintenance program containing the tasks on 
the basis of which the scheduled maintenance is conducted to ensure 
the continuing airworthiness of each operated airplane.
    (2) Where EASA AD 2022-0236 refers to its effective date, this 
AD requires using the effective date of this AD.
    (3) This AD does not require compliance with paragraphs (1), 
(2), (4), and (5) of EASA AD 2022-0236.
    (4) Where paragraph (3) of EASA AD 2022-0236 specifies revising 
the approved AMP within 12 months after the effective date of EASA 
AD 2022-0236, this AD requires revising the airworthiness 
limitations section of the existing approved engine maintenance or 
inspection program, as applicable, within 90 days after the 
effective date of this AD.
    (5) This AD does not adopt the Remarks paragraph of EASA AD 
2022-0236.

(i) Provisions for Alternative Actions and Intervals

    After performing the actions required by paragraph (g) of this 
AD, no alternative actions and associated thresholds and intervals, 
including life limits, are allowed unless they are approved as 
specified in the provisions of the ``Ref. Publications'' section of 
EASA AD 2022-0236.

(j) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, AIR-520, Continued Operational Safety Branch, 
FAA, has the authority to approve AMOCs for this AD, if requested 
using the procedures found in 14 CFR 39.19. In accordance with 14 
CFR 39.19, send your request to your principal inspector or local 
Flight Standards District Office, as appropriate. If sending 
information directly to the manager of the certification branch, 
send it to the attention of the person identified in paragraph (k) 
of this AD and email to: [email protected].
    (2) Before using any approved AMOC, notify your appropriate 
principal inspector, or lacking a principal inspector, the manager 
of the local flight standards district office/certificate holding 
district office.

(k) Additional Information

    For more information about this AD, contact Sungmo Cho, Aviation 
Safety Engineer, FAA, 2200 South 216th Street, Des Moines, WA 98198; 
phone: (781) 238-7241; email: [email protected].

(l) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the 
incorporation by reference 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 the AD specifies otherwise.
    (i) European Union Aviation Safety Agency AD 2022-0236, dated 
December 1, 2022.
    (ii) [Reserved]
    (3) For EASA AD 2022-0236, contact EASA, Konrad-Adenauer-Ufer 3, 
50668 Cologne, Germany; phone: +49 221 8999 000; email: 
[email protected]; website: easa.europa.eu. You may find this EASA 
AD on the EASA website at ad.easa.europa.eu.
    (4) You may view this service information at FAA, Airworthiness 
Products Section, Operational Safety Branch, 1200 District Avenue, 
Burlington, MA 01803. 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: [email protected], or go to: www.archives.gov/federal-register/cfr/ibr-locations.html.

    Issued on September 7, 2023.
Ross Landes,
Deputy Director for Regulatory Operations, Compliance & Airworthiness 
Division, Aircraft Certification Service.
[FR Doc. 2023-20672 Filed 9-22-23; 8:45 am]
BILLING CODE 4910-13-P


