# SDR CALA2026031914680

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 11, 2026
- Submitted: March 19, 2026
- Operation: Air carrier
- Aircraft: [N53442](https://openairdocs.org/aircraft/N53442), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 33536
- Aircraft time: 52,770 hours, 18,868 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Pan
- Part number: 146A7402U4
- 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/CALA2026031914680

## Discrepancy

FOUND CORROSION AFT CARGO COMPARTMENT WASTE TANK DUMP CHUTE BASE ATTACHMENT I/B SIDE. REF AAR NR 100011394.  REMOVED AND REPLACED AFT CARGO COMPARTMENT WASTE DRAIN UPPER PAN ASSY IN REF TO SRM 51-10-02-0G-0, SRM 51-40-02-0G-0, & DWG 146A7401.

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