# SDR CALA2025120111605

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 3, 2025
- Submitted: December 1, 2025
- Operation: Air carrier
- Aircraft: [N38479](https://openairdocs.org/aircraft/N38479), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 62817
- Aircraft time: 27,114 hours, 10,251 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Channel
- Part number: 143A7501
- 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/CALA2025120111605

## Discrepancy

FWD CARGO COMPARTMENT LH Z CHANNEL POSSIBLE CORROSION BTW STA. 460 AND 500L (REF. AAR NR 1000058394). REPLACED FWD CARGO COMPARTMENT LH Z CHANNEL, BTW STA. 460 AND 500L . IAW B737-900ER. SRM 51-40-02-0G-0 AND 53-00-53-2R-5 STEP 4 (WORK ACCOMPLISHED BY V949917 AND AAR QC V931823) UPDATE TO REFLECT ESFR ENTRY REPLACED FWD CARGO COMPARTMENT LH Z CHANNEL, BTW STA. 460 AND 50 0L . IAW B737-900ER. SRM 51-40-02-0G-0 AND 53-00-53-2R-5 STEP 4 (WORK ACCOMPLISHED BY V936445 AND V931572)

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