# SDR CALA2025042104051

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 19, 2025
- Submitted: April 21, 2025
- Operation: Air carrier
- Aircraft: [N664UA](https://openairdocs.org/aircraft/N664UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 29236
- Aircraft time: 92,251 hours, 19,363 cycles
- System (JASC): [5313 · Fuselage Main, Longeron/Stringer](https://openairdocs.org/jasc/5313)
- Part: Stringer
- Part number: 148T328017
- 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/CALA2025042104051

## Discrepancy

DURING INSPECTION OF LH AND RH STABILIZER TORSION BOX COMPARTMENTS (INTERNAL), IT WAS FOUND SIGNS OF CORROSION AT STRINGER S-36L BETWEEN STA 1809.50 AND 1843.00. THIS REPAIR IS CLASSIFIED AS MAJOR REPAIR PER GMM 09-25-05 AS PER GMM 09-25-05 THE REPAIR IS CLASSIFIED AS MAJOR REPAIR THE STRINGER WAS REPLACED AS PER SRM 51-40-02 AND 51-10-02 VERIFIED AND NO WAS FOUND DISCREPANCY.

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