# SDR CALA2025050804553

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 5, 2025
- Submitted: May 8, 2025
- Operation: Air carrier
- Aircraft: [N644UA](https://openairdocs.org/aircraft/N644UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 25094
- Aircraft time: 128,861 hours, 19,875 cycles
- System (JASC): [5313 · Fuselage Main, Longeron/Stringer](https://openairdocs.org/jasc/5313)
- Part: Stringer
- Part number: 146T300313
- Condition: Corroded
- Location: Zone 100
- 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/CALA2025050804553

## Discrepancy

DURING ACCOMPLISHMENT OF REPAIR, WAS FOUND S-37L DAMAGED AT STA 1540. PICTURES ATTACHED. UPDATE GENERATED DUE REPAIR ACCOMPLISHMENT, CLASSIFIED AS MAJOR REPAIR. FILLED OUT ESFR INFORMATION, IT'S NECESSARY QC REVIEW AND APPROVAL TO GENERATE ESFR NUMBER. VERIFIED THE ESFR AND NO WAS DEVIATION, BY QC PERFORMED INTERIM REPAIR AT STRINGER 37LH AND BETWEEN STA 1562/ STA 1540 AS PER EC/RA #5360-01948 PART A STEP 2,3 AND PART C STEP 14. IT WAS INITIATED A DIP BY LOG PAGE 4720209. VERIFIED THE STEPS AND NO WAS FOUND DEVIATION.

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