# SDR YENA2026030400251

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 1, 2026
- Submitted: March 4, 2026
- Operation: Air carrier
- Aircraft: [N913JB](https://openairdocs.org/aircraft/N913JB), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 05909
- Aircraft time: 43,835 hours, 13,772 cycles
- System (JASC): [5415 · Nacelle/Pylon, Attach Fittings](https://openairdocs.org/jasc/5415)
- Part: Fillet
- Condition: Cracked
- Location: Zone400
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA2026030400251

## Discrepancy

DURING HEAVY MAINTENANCE: PYLONS / LH PYLON / PYLON TO WING CENTER FILLETS / OUTBD STRIP RIB 7A AND RIB 10A / CRACK AND CORROSION – PERMANENT REPAIR; REFERENCES: /1/ STS EA 160-2026-001 REV IR /2/ AIRBUS RDAF 81708168/003/2025#A /3/ REPAIR INSTRUCTIONS TD/81708168/011/2025#A. DESCRIPTION: DURING CURRENT (01/2026) M1 CHECK ON N913JB (MSN: 05909) @ MLB, STS REPORTED ONE (1) CRACK AND SEVEN (7) CORROSION DAMAGES ON THE LH PYLON TO WING CENTER FILLET OUTBD STRIP (PN: D5451804720400 - FABRICATED FROM ASNA3051-8600 [7075-T6 CLAD AL]) AT RIB 7A AND RIB 10A.  DAMAGE WAS BLENDED IAW A321 SRM AND WAS EVALUATED IAW SRM 54-53-12 BUT WAS OOL DUE TO NO ADL BEING AVAILABLE.  SEE REF /1/ FOR FULL DETAILS. STS REQUESTED PERMANENT REPAIR DISPOSITION FROM AIRBUS WHO PROVIDED REF /3/ TD, WHICH DEFINES A REPAIR CONSISTING OF PERFORMING A CUTOUT, NDT INSPECTION, DOUBLER AND FILLER FABRICATION AND INSTALLATION, AND NEW FASTENER WET INSTALLATION.  THIS REPAIR WAS AUTHORIZED BY AIRBUS VIA REF /2/ RDAF. EC A26-028-01 IS ISSUED TO ACCOMPLISH THIS PERMANENT REPAIR PER REF /1/ STS EA. SUBSTANTIATION: THIS PERMANENT REPAIR IS APPROVED PER REF /2/, RDAF AND IS CLASSIFIED AS MAJOR. (E/C: A26-028-01)

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