# SDR CALA2026012313197

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 21, 2026
- Submitted: January 23, 2026
- Operation: Air carrier
- Aircraft: [N33289](https://openairdocs.org/aircraft/N33289), registered now
- Make and model: Boeing 737824
- Aircraft serial: 31607
- Aircraft time: 66,417 hours, 24,571 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Channel
- Part number: 146A7502
- Condition: Cracked
- 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/CALA2026012313197

## Discrepancy

AFT CARGO BAY, LT ZEE CHANNEL POSSIBLE COROSION AND CRACK BTW BS 727B AND 727J.   R & R THE LT ZEE CHANNEL BTW BS 727B AND 727J IAW SRM 53-00-53-2R-6, AMM 20-60-07-9913-801, SRM 51-40-02-0G-0, SRM 51-40-05-0G-0, SRM 51-40-08-0G-0, SRM 51-20-01-0G-0, AMM 51-21-72-370-804, & SRM 51-20-05.

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