STC ST12369IB

11805 Service Road A-5 Montreal International Airport (Mirabel) Mirabel, Quebec Canada J7N 1A1 Part 25 Title 14, Code of Federal Regulations A28NM Airbus S.A.S.

A321-211

1. If the holder agrees to permit another person to use this certificate to alter a product, the holder must give the other person written evidence of that permission.

2. The installer must determine whether this design change is compatible with previously approved modifications.

(See continuation sheet 4 of 4) 09/26/2025 04/21/2026 John Yoo Manager, International Validation Branch Compliance & Airworthiness Division Aircraft Certification Service 4

1. Replacement of flight attendant seat restraints, dress covers and cushion assemblies must be in accordance with Avianor Master Document List MDL24132901, Rev. A, dated August 1, 2025, or later Transport Canada Civil Aviation (TCCA) approved revisions for A321-211 MSNs 5328, 5354, 5377, 5681, 5733, 5808, 5849, 6210, 6232, 6844, 6873, 6884, 6905, 7117, 7433, 7650, 8104, and 8232.

2. Replacement of flight attendant seat restraints, dress covers and cushion assemblies must be in accordance with Avianor Master Document List MDL24132902, Rev. B, dated September 2, 2025, or later TCCA approved revisions for A321-211 MSN 5038.

3. Maintenance must be in accordance with Avianor Component Maintenance Manual Supplements as follows for A321-211 MSNs 5328, 5354, 5377, 5681, 5733, 5808, 5849, 6210, 6232, 6844, 6873, 6884, 6905, 7117, 7433, 7650, 8104, and 8232:

a. 25-20-530, Rev. A, Supplement to Goodrich CMM 25-72-22, F/A Seats 2128 EBJ-Series dated July 23, 2025, or later TCCA accepted revisions.

b. 25-20-531, Rev. A, Supplement to Goodrich CMM 25-72-23, F/A Seats 2130 FBJ-Series dated July 23, 2025, or later TCCA accepted revisions.

c. 25-20-532, Rev. A, Supplement to Goodrich CMM 25-72-24, F/A Seats 2127 EBJ-Series dated July 23, 2025, or later TCCA accepted revisions.

d. 25-20-533, Rev. A, Supplement to Goodrich CMM 25-72-92, F/A Seats 2128 ABR-Series dated July 23, 2025, or later TCCA accepted revisions.

e. 25-20-534, Rev. A, Supplement to Goodrich CMM 25-72-94, F/A Seats 2127 ABR-Series dated July 23, 2025, or later TCCA accepted revisions.

f. 25-20-535, Rev. A, Supplement to Goodrich CMM 25-73-93, F/A Seats 2128 ECC-Series dated July 23, 2025, or later TCCA accepted revisions.

g. 25-20-536, Rev. A, Supplement to Goodrich CMM 25-73-95, F/A Seats 2127 ECC-Series dated July 23, 2025, or later TCCA accepted revisions.

h. 25-20-537, Rev. A, Supplement to Goodrich CMM 25-75-56, F/A Seats 2128 ECN-Series dated July 23, 2025, or later TCCA accepted revisions.

i. 25-20-538, Rev. A, Supplement to Goodrich CMM 25-75-57, F/A Seats 2127 ECN-Series dated July 23, 2025, or later TCCA accepted revisions.

j. 25-20-539, Rev. A, Supplement to Goodrich CMM 25-77-12, F/A Seats 2128 ECM-Series dated July 23, 2025, or later TCCA accepted revisions.

k. 25-20-540, Rev. A, Supplement to Goodrich CMM 25-77-18, F/A Seats 2127 ECM-Series dated July 23, 2025, or later TCCA accepted revisions.

4. Maintenance must be in accordance with Avianor Component Maintenance Manual Supplements as follows for A321-211 MSN 5038:

a. 25-20-529, Rev. NC, Supplement to Sicma / Zodiac CMM 25-12-14, F/A Seats FA-Series dated March 25, 2025, or later TCCA accepted revisions.

b. 25-20-543, Rev. NC, Supplement to Sicma / Zodiac CMM 25-12-13, F/A Seats RL-Series dated April 7, 2025, or later TCCA accepted revisions.

c. 25-20-544, Rev. NC, Supplement to Sicma / Zodiac CMM 25-12-15, F/A Seats WA-Series dated April 8, 2025, or later TCCA accepted revisions.

3. This STC is applicable to serial numbers 5038, 5328, 5354, 5377, 5681, 5733, 5808, 5849, 6210, 6232, 6844, 6873, 6884, 6905, 7117, 7433, 7650, 8104, and 8232 for this Make-Model.

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