# SDR CALA2026072718036

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 24, 2026
- Submitted: July 27, 2026
- Operation: Air carrier
- Aircraft: [N73251](https://openairdocs.org/aircraft/N73251), registered now
- Make and model: Boeing 737824
- Aircraft serial: 30582
- Aircraft time: 78,230 hours, 29,321 cycles
- Engine: Cfmint CFM567B262
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: Pressure Switch
- Part number: QA07995
- Part serial: 5011
- Condition: Faulted
- Location: Nr 2 Engine
- Part time: 3,138 hours, 1,489 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026072718036

## Discrepancy

ENG 2 FILTER BYPASS  LIGHT ILLUM AT CRUISE  ONCE CENTER PUMPS  EMPTIED. FOUND INPUT MONITOR FOR NR 2 ENG INDICATING FILTER BYPASS CLOG. IAW FIM 73-05, TASK 801. FILTER DIFFERENTIAL PRESSURE SWITCH MUST BE CHANGED. REPLACED FUEL FILTER CLOGGED DPI SWITCH IAW AMM 73-34-01. PREFORMED ENGINE RUN TEST 7 AND 3A. NO LEAKES AT THIS TIME.

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