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Federal Register / Vol. 86, No. 125 / Friday, July 2, 2021 / Rules and Regulations
Table 1 to Paragraph gl-HPT 1st-Stage Disk with Known Engine Installations Engine Serial Number
HPT 1st-Stage Disk Serial Number
Vl1020

PKLBSC9996

V12788

PKLBR59989

V13037

PKLBSH1829

Vl5159

PKLBR34908

Vl6796

PKLBSG9043

V16799

PKLBSG0105

Vl6912

PKLBR83471

2 For affected engines with an installed HPT 2nd-stage disk listed in Table 2 to paragraph g2 of this AD, within 10 flight
cycles after the effective date of this AD, perform a USI of the HPT 2nd-stage disk using the Accomplishment Instructions,
paragraph 7, of IAE NMSB V2500ENG72
0713.

HPT 2nd-Stage Disk Serial Number
Vl1901

PKLBSG2213

V12308

PKLBSH9246

Vl2644

PKLBSC8066

V13111

PKLBR89452

V15434

PKLBR88708

V15737

PKLBSC8077

Vl6085

PKLBSA9907

Vl7869

PKLBR87800

3 If, during the USI required by paragraphs g1 and 2 of this AD, an HPT
1st-stage disk or HPT 2nd-stage disk does not pass the USI as specified in the Accomplishment Instructions, paragraph 8., of IAE NMSB V2500ENG720713, Revision 1, before further flight, remove the HPT 1st-stage disk or 2nd-stage disk, as applicable, from service and replace with a part eligible for installation.

lotter on DSK11XQN23PROD with RULES1

h Definition For the purpose for this AD, a part eligible for installation is:
1 An HPT 1st-stage disk or HPT 2nd-stage disk listed in Appendix A, Tables 1 and 2, of IAE NMSB V2500ENG720713, or Appendix A, Tables 1 and 2, of IAE NMSB
V2500E5720015, dated December 15, 2020 IAE NMSB V2500E5720015 that has passed the USI as specified in the Accomplishment Instructions, paragraph 8., of IAE NMSB V2500ENG720713 or NMSB
V2500E5720015, or 2 An HPT 1st-stage disk or HPT 2nd-stage disk that is not listed in Appendix A, Tables 1 and 2, of IAE NMSB V2500ENG720713

VerDate Sep<11>2014

16:05 Jul 01, 2021

Jkt 253001

or Appendix A, Tables 1 and 2, of IAE NMSB
V2500E5720015.

2387329; fax: 781 2387999; email:
Alberto.J.Hernandez@faa.gov.

i Alternative Methods of Compliance AMOCs 1 The Manager, ECO 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 office, send it to the attention of the person identified in Related Information. You may email your request to ANE-AD-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.

k 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. 552a 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.
3 The following service information was approved for IBR on July 13, 2021 86 FR
30380, June 8, 2021.
i IAE Non-Modification Service Bulletin NMSB V2500ENG720713, Revision 1, dated January 26, 2021.
ii IAE NMSB V2500E5720015, dated December 15, 2020.
4 For International Aero Engines service information identified in this AD, contact International Aero Engines AG, 400 Main Street, East Hartford, CT 06118; phone: 860
5652391; email: help24@pw.utc.com;
website: http fleetcare.pw.utc.com.
5 You may view this service information at FAA, Airworthiness Products Section,
j Related Information For more information about this AD, contact Alberto Hernandez, Aviation Safety Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781

PO 00000

Frm 00004

Fmt 4700

Sfmt 4700

E:FRFM02JYR1.SGM

02JYR1

ER02JY21.000

Engine Serial Number
ER02JY21.001

Table 2 to Paragraph g2 - HPT 2nd-Stage Disk with Known Engine Installation