# SDR CALA2026030214165

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 27, 2026
- Submitted: March 2, 2026
- Operation: Air carrier
- Aircraft: [N78438](https://openairdocs.org/aircraft/N78438), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 33533
- Aircraft time: 52,232 hours, 18,695 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Channel
- Part number: 146A7502
- 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/CALA2026030214165

## Discrepancy

AFT CARGO BAY, ZEE CHANNEL, LT SIDE, BETWEEN BS 787 AND 807 CORRODED.   REMOVED AND REPLACED THE LT ZEE CHANNEL BETWEEN BS 787 & 807 IAW SRM 53-00-53-2R-6, STEP 4. L, & SRM 51-40-02-0G-0.

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