# SDR CALA2026011913048

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 5, 2026
- Submitted: January 19, 2026
- Operation: Air carrier
- Aircraft: [N54241](https://openairdocs.org/aircraft/N54241), registered now
- Make and model: Boeing 737824
- Aircraft serial: 28953
- Aircraft time: 79,178 hours, 29,560 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Door Frame
- Part number: 147A85408
- Condition: Corroded
- Location: Zone 200
- 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/CALA2026011913048

## Discrepancy

R2 DOOR CUTOUT AREA, INNER CHORD HAS CORROSION ON UPPER SURFACE BETWEEN BS 927 - 992.8, APPROX. RBL-56.  REMOVED CORROSION ON INNER CHORD AT R2 DOOR CUTOUT AREA, UPPER SURFACE BS 927 - BS 992.8, RBL56 ORIGINAL THICKNESS IS .080, REMAINING THICKNESS IS .045 LOSS OF MATERIAL IS .035, FOUND TO BE OUT OF LIMITS IAW SRM 53-70-15-01-7. R & R INNER CHORD IAW SRM 51-40-02 & DWG 147A0004, REV- .

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