# SDR CALA2024111902899

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 18, 2024
- Submitted: November 19, 2024
- Operation: Air carrier
- Aircraft: [N25201](https://openairdocs.org/aircraft/N25201), registered now
- Make and model: Boeing 737824
- Aircraft serial: 28958
- Aircraft time: 69,552 hours, 26,255 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Panel
- Part number: 111A41023
- 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/CALA2024111902899

## Discrepancy

CORROSION FOUND AT LOWER FUS,@S-23L STA 540 INB OF L/W PNEUMATIC DUCT.    MKD DOT 055 REF. AAR N/R:9912661 L 52.5 IAW EC/RA 5710-02901. AFTER APRIL 1, 2026, BUT BEFORE MAY ARD LOWER SKIN PANEL LOWER EXTERNAL SURFACE BETWEEN STA 540 & 54 ATEST REVISION OF ECRA 5710-02901. 17, 2026, PERFORM AN INSPECTION OF THE WING CENTER SECTION FORW 8, AT LBL 52.5 ON AIRCRAFT N25201 IN ACCORDANCE WITH PART 2 OF L ACCOMPLISHED INTERIM REPAIR TO WING CENTER SECTION FORWARD LOWER SKIN PANEL, LOWER EXTERNAL SURFACE BETWEEN STA 540 & 548, AT LB DIP APPROVED PER ECRA 5710-02901 PART 1 STEP 4 AFTER APRIL 17, TOMC-APPROVAL FROM SC1ELBYC COMMENT 2026, BUT BEFORE MAY 17, 2026, PERFORM AN INSPECTION OF THE WING CENTER SECTION FORWARD LOWER SKIN PANEL LOWER EXTERNAL SURFACE BETWEEN STA 540 & 548, AT LBL 52.5 ON AIRCRAFT N25201 IN ACCORDANCE WITH PART 2 OF THE LATEST REVISION OF ECRA 5710-02901 TOMC APPROVED : QC REVIEWED. TOMC APPROVED : QC REVIEWED. INSPECTIONS CREATED BY AUTODIP PENDING AIRCRAFT RECORDS REVIEW.

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