# SDR CALA2025120511791

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 16, 2025
- Submitted: December 5, 2025
- Operation: Air carrier
- Aircraft: [N14237](https://openairdocs.org/aircraft/N14237), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 28802
- Aircraft time: 80,115 hours, 29,985 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Transition Panel
- Part number: 143A750181
- 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/CALA2025120511791

## Discrepancy

FWD CARGO BAY LT TRANSITION PANEL FROM BS 500B - 500I CORRODED.  REMOVED CORROSION ON FWD CARGO LT TRANSITION PANEL ORIGINAL THICKNESS .040, REMAINING THICKNESS .027, MATERIAL LOSS .013.   FOUND TO BE ON OUT OF LIMITS IAW SRM 53-00-53-1A-2. REMOVED TRANSITION PANEL IAW SRM 51-40-02. FABRICATED A NEW TRANSITION PANEL IAW SRM 53-00-53-2R-5, SRM 51-40-05. ALODINED AND PRIMED THE TRANSITION PANEL IAW SRM 51-20-01.  ASSEMBLED AND INSTALLED THE TRANSITION PANEL IAW SRM 51-40-02,  & SRM 53-00-53-20-5.

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