# SDR AALA202605205803

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 15, 2026
- Submitted: May 21, 2026
- Operation: Air carrier
- Aircraft: [N901NN](https://openairdocs.org/aircraft/N901NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 33226
- Aircraft time: 40,234 hours, 17,389 cycles
- Engine: Cfmint CFM567B24E
- System (JASC): [7334 · Fuel Pressure Sensor](https://openairdocs.org/jasc/7334)
- Part: Pressure Switch
- Part number: 8TJ201NAA1
- Condition: Faulty
- Location: Zone 400
- Stage of operation: TO
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202605205803

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: FUEL FILTER BYPASS CAUTION LIGHT AFTER TAKE OFF.  LIGHT IS INTERMITTENT. REMOVED AND REPLACE NUMBER 2 ENGINE FUEL FILTER (AALA202605209972), PER MM 73-11-02. ALSO, REMOVED AND REPLACED FUEL FILTER DIFFERENTIAL PRESSURE SWITCH (AALA202605205803), PER MM 73-34-01. RAN ENGINE ALL PARAMETERS NORMAL AND LEAK CHECK GOOD.

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