Airworthiness Directives; CFE Company Engines, 56193-56195 [2024-14939]

Download as PDF Federal Register / Vol. 89, No. 131 / Tuesday, July 9, 2024 / Rules and Regulations around the G/S antenna. The unsafe condition, if not addressed, could lead to erratic signals from the G/S antenna, which could result in reduced capability of the helicopter to perform safe automated approaches. (f) Compliance Comply with this AD within the compliance times specified, unless already done. lotter on DSK11XQN23PROD with RULES1 (g) Requirements Except as specified in paragraphs (h) and (i) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, European Union Aviation Safety Agency (EASA) AD 2022– 0010, dated January 20, 2022 (EASA AD 2022–0010). (h) Exceptions to EASA AD 2022–0010 (1) Where EASA AD 2022–0010 states ‘‘flight hours;’’ for this AD, replace that text with ‘‘hours time-in-service.’’ (2) Where EASA AD 2022–0010 refers to its effective date, this AD requires using the effective date of this AD. (3) Where paragraph (1) of EASA AD 2022– 0010 states ‘‘in accordance with the instructions of Part I of the ASB;’’ for this AD, replace that text with ‘‘in accordance with the Accomplishment Instructions, Part I, paragraphs 4 and 5 of the ASB.’’ (4) Where paragraph (2) of EASA AD 2022– 0010 states ‘‘in accordance with the instructions of Part I of the ASB;’’ for this AD, replace that text with ‘‘in accordance with the Accomplishment Instructions, Part I, paragraphs 6.3 (including the two cautions above paragraph 6.3) through 6.5 (but not paragraphs 6.5.1 and 6.5.2) of the ASB.’’ (5) Where paragraphs (4) and (5) of EASA AD 2022–0010 state ‘‘discrepancy;’’ for this AD, replace that text with ‘‘discrepancy, which is one or more ‘‘fail’’ results in the acceptance test procedure.’’ (6) Where paragraphs (4) and (5) of EASA AD 2022–0010 state to ‘‘replace the/those affected parts with serviceable parts;’’ for this AD, replace that text with ‘‘remove the affected part, as defined in EASA AD 2022– 0010, from service and replace it with a serviceable part, as defined in EASA AD 2022–0010. Thereafter, after installing a serviceable part, as defined in EASA AD 2022–0010, before further flight, accomplish an acceptance test procedure (ATP) in accordance with the instructions of Annex A of the ASB.’’ (7) Where the service information referenced in EASA AD 2022–0010 specifies discarding existing hardware, this AD requires removing the existing hardware from service. (8) Where paragraph (4) of EASA AD 2022– 0010 states ‘‘in accordance with the instructions of Part I of the ASB;’’ for this AD, replace that text with ‘‘in accordance with the Accomplishment Instructions, Part I, paragraphs 9 through 11 of the ASB.’’ (9) Where paragraph (5) of EASA AD 2022– 0010 states ‘‘in accordance with the instructions of Part II of the ASB;’’ for this AD, replace that text with ‘‘in accordance with the Accomplishment Instructions, Part II, paragraphs 2 through 4 of the ASB.’’ VerDate Sep<11>2014 15:55 Jul 08, 2024 Jkt 262001 (10) This AD does not adopt the ‘‘Remarks’’ section of EASA AD 2022–0010. (i) No Reporting Requirement Although the service information referenced in EASA AD 2022–0010 specifies to submit certain information to the manufacturer, this AD does not include that requirement. (j) Special Flight Permits Special flight permits may be issued in accordance with 14 CFR 21.197 and 21.199, provided there are no passengers, and no flights are performed under instrument flight rules (IFR). (k) Alternative Methods of Compliance (AMOCs) (1) The Manager, International Validation 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 International Validation Branch, send it to the attention of the person identified in paragraph (l) of this AD. Information may be emailed to: 9-AVS-AIR730-AMOC@faa.gov. (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. (l) Related Information For more information about this AD, contact Sungmo Cho, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; phone: (781) 238– 7241; email: Sungmo.D.Cho@faa.gov. (m) 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 (EASA) AD 2022–0010, dated January 20, 2022. (ii) [Reserved] (3) For EASA AD 2022–0010, contact EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; telephone +49 221 8999 000; email ADs@easa.europa.eu; internet easa.europa.eu. You may find the EASA material on the EASA website at ad.easa.europa.eu. (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 material at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, visit www.archives.gov/federal-register/cfr/ ibr-locations or email fr.inspection@nara.gov. PO 00000 Frm 00005 Fmt 4700 Sfmt 4700 56193 Issued on May 14, 2024. James D. Foltz, Deputy Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2024–14890 Filed 7–8–24; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2024–0461; Project Identifier AD–2023–00994–E; Amendment 39–22767; AD 2024–12–03] RIN 2120–AA64 Airworthiness Directives; CFE Company Engines Federal Aviation Administration (FAA), DOT. ACTION: Final rule. AGENCY: The FAA is adopting a new airworthiness directive (AD) for certain CFE Company (CFE) Model CFE738–1– 1B engines. This AD was prompted by a manufacturer investigation that revealed certain high-pressure turbine (HPT) stage 1 and stage 2 disks were manufactured from powder metal material suspected to contain iron inclusion. This AD requires replacement of affected HPT stage 1 and stage 2 disks with parts eligible for installation. The FAA is issuing this AD to address the unsafe condition on these products. DATES: This AD is effective August 13, 2024. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of August 13, 2024. ADDRESSES: AD Docket: You may examine the AD docket at regulations.gov under Docket No. FAA–2024–0461; 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. Material Incorporated by Reference: • For CFE material, contact CFE Company, 111 S 34th Street, Phoenix, AZ 85034; phone: (800) 601–3099; email: CFE738DataCenter@ honeywell.com; website: aerospace.honeywell.com. • You may view this material at the FAA, Airworthiness Products Section, SUMMARY: E:\FR\FM\09JYR1.SGM 09JYR1 56194 Federal Register / Vol. 89, No. 131 / Tuesday, July 9, 2024 / Rules and Regulations 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– 2024–0461. FOR FURTHER INFORMATION CONTACT: Alexei Marqueen, Aviation Safety Engineer, FAA, FAA, 2200 South 216th Street, Des Moines, WA 98198; phone: (781) 238–7178; email: alexei.t.marqueen@faa.gov. SUPPLEMENTARY INFORMATION: Background The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by adding an AD that would that apply to certain CFE Model CFE738–1– 1B engines with HPT stage 1 and HPT stage 2 disks installed. The NPRM published in the Federal Register on March 8, 2024 (89 FR 16710). The NPRM was prompted by a manufacturer investigation that revealed certain HPT stage 1 and HPT stage 2 disks, installed on certain CFE738–1–1B model engines, were manufactured from powder metal material suspected to contain iron inclusion. Further investigation by the manufacturer determined that the iron inclusion is attributed to deficiencies in the manufacturing process and may cause reduced material properties and a lower fatigue life capability, which may result in structural failure. The manufacturer also informed the FAA that additional risk assessments determined that there were no failed events associated with the discovery of this iron inclusion material, however concluded that replacement of the affected HPT stage 1 and HPT stage 2 disks is necessary. In the NPRM, the FAA proposed to require replacement of affected HPT stage 1 and HPT stage 2 disks with parts eligible for installation. The FAA is issuing this AD to address the unsafe condition on these products. Discussion of Final Airworthiness Directive Comments The FAA received no comments on the NPRM or on the determination of the costs. Conclusion The FAA reviewed the relevant data and determined that air safety requires adopting this 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 Material Under 1 CFR Part 51 The FAA reviewed CFE Service Bulletin CFE738–72–A8082, dated July 4, 2023, which specifies the affected part and serial numbers of the HPT stage 1 and stage 2 disks and specifies replacement instructions for the affected parts. 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 the ADDRESSES section. Costs of Compliance The FAA estimates that this AD affects 29 engines installed on airplanes of U.S. registry. The FAA estimates the following costs to comply with this AD: ESTIMATED COSTS Action Labor cost Replace HPT stage 1 disk (25 engines) ........ Replace HPT stage 2 disk (4 engines) .......... 8 work-hours × $85 per hour = $680 ............. 8 work-hours × $85 per hour = $680 ............. lotter on DSK11XQN23PROD with RULES1 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 VerDate Sep<11>2014 15:55 Jul 08, 2024 Jkt 262001 Parts cost 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. 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: PO 00000 Frm 00006 Fmt 4700 Sfmt 4700 Cost per product $78,797 56,268 Cost on U.S operators $79,477 56,948 $1,986,925 227,792 PART 39—AIRWORTHINESS DIRECTIVES 1. The authority citation for part 39 continues to read as follows: ■ Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The FAA amends § 39.13 by adding the following new airworthiness directive: ■ 2024–12–03 CFE Company: Amendment 39–22767; Docket No. FAA–2024–0461; Project Identifier AD–2023–00994–E. (a) Effective Date This airworthiness directive (AD) is effective August 13, 2024. (b) Affected ADs None. (c) Applicability This AD applies to CFE Company (CFE) Model CFE738–1–1B engines with an installed high-pressure turbine (HPT) stage 1 disk or HPT stage 2 disk with a part number (P/N) and serial number (S/N) identified in Section 1. Planning Information, paragraph E. Compliance, Tables 2 and 3 of CFE Service E:\FR\FM\09JYR1.SGM 09JYR1 Federal Register / Vol. 89, No. 131 / Tuesday, July 9, 2024 / Rules and Regulations Bulletin (SB) CFE738–72–A8082, dated July 4, 2023 (CFE738–72–A8082). Moines, WA 98198; phone: (781) 238–7178; email: alexei.t.marqueen@faa.gov. (d) Subject Joint Aircraft System Component (JASC) Code 7250, Turbine Section. (k) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference (IBR) of the material listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51. (2) You must use this material as applicable to do the actions required by this AD, unless the AD specifies otherwise. (i) CFE Service Bulletin CFE738–72– A8082, dated July 4, 2023. (ii) [Reserved] (3) For CFE material, contact CFE Company, 111 S 34th Street, Phoenix, AZ 85034; phone: (800) 601–3099; email: CFE738DataCenter@honeywell.com; website: aerospace.honeywell.com. (4) 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. (5) You may view this material at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, visit www.archives.gov/federal-register/cfr/ ibr-locations or email fr.inspection@nara.gov. (e) Unsafe Condition This AD was prompted by a manufacturer investigation that revealed certain HPT stage 1 disks and HPT stage 2 disks were manufactured from powder metal material suspected to contain iron inclusion. The FAA is issuing this AD to prevent premature fracture and consequent uncontained failure. The unsafe condition, if not addressed, could result in uncontained debris release, 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 At the applicable times specified in paragraphs (g)(1) and (2) of this AD, remove each affected HPT stage 1 disk and HPT stage 2 disk from service and replace with a part eligible for installation, in accordance with steps (1) through (9) in paragraph B. of the Accomplishment Instructions of CFE738–72– A8082. (1) For affected HPT stage 1 disks, at the next piece-part exposure or before exceeding 2,450 cycles since new (CSN), whichever occurs first. (2) For affected HPT stage 2 disks, at the next piece-part exposure or before exceeding 2,930 CSN, whichever occurs first. lotter on DSK11XQN23PROD with RULES1 (h) Definition For the purpose of this AD: (1) A ‘‘part eligible for installation’’ is any HPT stage 1 disk or HPT stage 2 disk with a P/N and S/N that is not identified in Section 1. Planning Information, paragraph E. Compliance, Tables 2 and 3 of CFE738–72– A8082. (2) ‘‘Piece-part exposure’’ is when the affected part is removed from the engine. (i) 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 AIR–520 Continued Operational Safety Branch, send it to the attention of the person identified in paragraph (j) of this AD and email to: ANEAD-AMOC@faa.gov. (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. (j) Related Information For more information about this AD, contact Alexei Marqueen, Aviation Safety Engineer, FAA, 2200 South 216th Steet, Des VerDate Sep<11>2014 15:55 Jul 08, 2024 Jkt 262001 Issued on June 11, 2024. Suzanne Masterson, Deputy Director, Integrated Certificate Management Division, Aircraft Certification Service. [FR Doc. 2024–14939 Filed 7–8–24; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2024–0757; Project Identifier MCAI–2023–01205–T; Amendment 39–22765; AD 2024–12–01] RIN 2120–AA64 Airworthiness Directives; Airbus SAS Airplanes Federal Aviation Administration (FAA), DOT. ACTION: Final rule. AGENCY: The FAA is superseding Airworthiness Directive (AD) 2022–14– 10, which applied to certain Airbus SAS Model A318 series airplanes; Model A319–111, –112, –113, –114, –115, –131, –132, and –133 airplanes; Model A320–211, –212, –214, –216, –231, –232, and –233 airplanes; and Model A321–111, –112, –131, –211, –212, –213, –231, and –232 airplanes. AD 2022–14–10 required repetitive inspections for cracking of the radius of the front spar vertical stringers and the horizontal floor beam on a certain frame SUMMARY: PO 00000 Frm 00007 Fmt 4700 Sfmt 4700 56195 (FR), repetitive inspections for cracking of the fastener holes of the front spar vertical stringers on that frame, and repair if necessary. AD 2022–14–10 also provided, for certain airplanes, a modification of the center wing box area that terminates the repetitive inspections under certain conditions. Since the FAA issued AD 2022–14–10, an additional airplane model has been identified that is also subject to the unsafe condition. This AD continues to require the actions in AD 2022–14–10 and adds Model A321–271N airplanes to the applicability, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference (IBR). The FAA is issuing this AD to address the unsafe condition on these products. This AD is effective August 13, 2024. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of August 13, 2024. DATES: ADDRESSES: AD Docket: You may examine the AD docket at regulations.gov under Docket No. FAA–2024–0757; 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 W12–140, 1200 New Jersey Avenue SE, Washington, DC 20590. Material Incorporated by Reference: • For EASA material, contact EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; telephone +49 221 8999 000; email ADs@easa.europa.eu; 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, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206–231–3195. It is also available at regulations.gov under Docket No. FAA–2024–0757. FOR FURTHER INFORMATION CONTACT: Timothy Dowling, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 206–231–3667; email timothy.p.dowling@faa.gov. SUPPLEMENTARY INFORMATION: E:\FR\FM\09JYR1.SGM 09JYR1

Agencies

[Federal Register Volume 89, Number 131 (Tuesday, July 9, 2024)]
[Rules and Regulations]
[Pages 56193-56195]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2024-14939]


-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2024-0461; Project Identifier AD-2023-00994-E; 
Amendment 39-22767; AD 2024-12-03]
RIN 2120-AA64


Airworthiness Directives; CFE Company Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

-----------------------------------------------------------------------

SUMMARY: The FAA is adopting a new airworthiness directive (AD) for 
certain CFE Company (CFE) Model CFE738-1-1B engines. This AD was 
prompted by a manufacturer investigation that revealed certain high-
pressure turbine (HPT) stage 1 and stage 2 disks were manufactured from 
powder metal material suspected to contain iron inclusion. This AD 
requires replacement of affected HPT stage 1 and stage 2 disks with 
parts eligible for installation. The FAA is issuing this AD to address 
the unsafe condition on these products.

DATES: This AD is effective August 13, 2024.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of August 13, 
2024.

ADDRESSES: 
    AD Docket: You may examine the AD docket at regulations.gov under 
Docket No. FAA-2024-0461; 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.
    Material Incorporated by Reference:
     For CFE material, contact CFE Company, 111 S 34th Street, 
Phoenix, AZ 85034; phone: (800) 601-3099; email: 
[email protected]; website: aerospace.honeywell.com.
     You may view this material at the FAA, Airworthiness 
Products Section,

[[Page 56194]]

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-2024-0461.

FOR FURTHER INFORMATION CONTACT: Alexei Marqueen, Aviation Safety 
Engineer, FAA, FAA, 2200 South 216th Street, Des Moines, WA 98198; 
phone: (781) 238-7178; 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 that apply to certain CFE Model 
CFE738-1-1B engines with HPT stage 1 and HPT stage 2 disks installed. 
The NPRM published in the Federal Register on March 8, 2024 (89 FR 
16710). The NPRM was prompted by a manufacturer investigation that 
revealed certain HPT stage 1 and HPT stage 2 disks, installed on 
certain CFE738-1-1B model engines, were manufactured from powder metal 
material suspected to contain iron inclusion. Further investigation by 
the manufacturer determined that the iron inclusion is attributed to 
deficiencies in the manufacturing process and may cause reduced 
material properties and a lower fatigue life capability, which may 
result in structural failure. The manufacturer also informed the FAA 
that additional risk assessments determined that there were no failed 
events associated with the discovery of this iron inclusion material, 
however concluded that replacement of the affected HPT stage 1 and HPT 
stage 2 disks is necessary. In the NPRM, the FAA proposed to require 
replacement of affected HPT stage 1 and HPT stage 2 disks with parts 
eligible for installation. The FAA is issuing this AD to address the 
unsafe condition on these products.

Discussion of Final Airworthiness Directive

Comments

    The FAA received no comments on the NPRM or on the determination of 
the costs.

Conclusion

    The FAA reviewed the relevant data and determined that air safety 
requires adopting this 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 Material Under 1 CFR Part 51

    The FAA reviewed CFE Service Bulletin CFE738-72-A8082, dated July 
4, 2023, which specifies the affected part and serial numbers of the 
HPT stage 1 and stage 2 disks and specifies replacement instructions 
for the affected parts. 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 the ADDRESSES section.

Costs of Compliance

    The FAA estimates that this AD affects 29 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
----------------------------------------------------------------------------------------------------------------
Replace HPT stage 1 disk (25 engines).  8 work-hours x $85 per           $78,797         $79,477      $1,986,925
                                         hour = $680.
Replace HPT stage 2 disk (4 engines)..  8 work-hours x $85 per            56,268          56,948         227,792
                                         hour = $680.
----------------------------------------------------------------------------------------------------------------

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.

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:

2024-12-03 CFE Company: Amendment 39-22767; Docket No. FAA-2024-
0461; Project Identifier AD-2023-00994-E.

(a) Effective Date

    This airworthiness directive (AD) is effective August 13, 2024.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to CFE Company (CFE) Model CFE738-1-1B engines 
with an installed high-pressure turbine (HPT) stage 1 disk or HPT 
stage 2 disk with a part number (P/N) and serial number (S/N) 
identified in Section 1. Planning Information, paragraph E. 
Compliance, Tables 2 and 3 of CFE Service

[[Page 56195]]

Bulletin (SB) CFE738-72-A8082, dated July 4, 2023 (CFE738-72-A8082).

(d) Subject

    Joint Aircraft System Component (JASC) Code 7250, Turbine 
Section.

(e) Unsafe Condition

    This AD was prompted by a manufacturer investigation that 
revealed certain HPT stage 1 disks and HPT stage 2 disks were 
manufactured from powder metal material suspected to contain iron 
inclusion. The FAA is issuing this AD to prevent premature fracture 
and consequent uncontained failure. The unsafe condition, if not 
addressed, could result in uncontained debris release, 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

    At the applicable times specified in paragraphs (g)(1) and (2) 
of this AD, remove each affected HPT stage 1 disk and HPT stage 2 
disk from service and replace with a part eligible for installation, 
in accordance with steps (1) through (9) in paragraph B. of the 
Accomplishment Instructions of CFE738-72-A8082.
    (1) For affected HPT stage 1 disks, at the next piece-part 
exposure or before exceeding 2,450 cycles since new (CSN), whichever 
occurs first.
    (2) For affected HPT stage 2 disks, at the next piece-part 
exposure or before exceeding 2,930 CSN, whichever occurs first.

(h) Definition

    For the purpose of this AD:
    (1) A ``part eligible for installation'' is any HPT stage 1 disk 
or HPT stage 2 disk with a P/N and S/N that is not identified in 
Section 1. Planning Information, paragraph E. Compliance, Tables 2 
and 3 of CFE738-72-A8082.
    (2) ``Piece-part exposure'' is when the affected part is removed 
from the engine.

(i) 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 AIR-520 Continued 
Operational Safety Branch, send it to the attention of the person 
identified in paragraph (j) 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.

(j) Related Information

    For more information about this AD, contact Alexei Marqueen, 
Aviation Safety Engineer, FAA, 2200 South 216th Steet, Des Moines, 
WA 98198; phone: (781) 238-7178; email: [email protected].

(k) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the 
incorporation by reference (IBR) of the material listed in this 
paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
    (2) You must use this material as applicable to do the actions 
required by this AD, unless the AD specifies otherwise.
    (i) CFE Service Bulletin CFE738-72-A8082, dated July 4, 2023.
    (ii) [Reserved]
    (3) For CFE material, contact CFE Company, 111 S 34th Street, 
Phoenix, AZ 85034; phone: (800) 601-3099; email: 
[email protected]; website: aerospace.honeywell.com.
    (4) 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.
    (5) You may view this material at the National Archives and 
Records Administration (NARA). For information on the availability 
of this material at NARA, visit www.archives.gov/federal-register/cfr/ibr-locations or email [email protected].

    Issued on June 11, 2024.
Suzanne Masterson,
Deputy Director, Integrated Certificate Management Division, Aircraft 
Certification Service.
[FR Doc. 2024-14939 Filed 7-8-24; 8:45 am]
BILLING CODE 4910-13-P
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