# SDR CALA2025043004350

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 27, 2025
- Submitted: April 30, 2025
- Operation: Air carrier
- Aircraft: [N77066](https://openairdocs.org/aircraft/N77066), registered now
- Make and model: Boeing 767424ER
- Aircraft serial: 29461
- Aircraft time: 90,641 hours, 14,447 cycles
- Engine: Ge CF680C2B7F
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: Pressure Switch
- Part number: 21SN04466
- Part serial: CFL6348BA
- Condition: Faulted
- Location: Nr 2 Eng Fuel
- Part time: 16,783 hours, 2,358 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/CALA2025043004350

## Discrepancy

DEBRIEFED CREW, NO OVWT LANDING, 32K FEET, FUEL FILTER BYPASS R MSG, ENG APPEARED AND SHOWED NORMAL, ALL INDICATIONS NORMAL. 2 HRS OUT. ADVISORY TO STATUS. 304-283-6970. PILOT. REMOVED AND REPLACE #2 ENGINE FUEL FILTER REF AMM 73-11-02-404-008-H00, LEAK CHECK GOOD. OPS CHECK SATISFACTORY. REMOVED & REPLACED FUEL FILTER DIFFERENTIAL PRESSURE SWITCH REF AMM 73-34-01. NO LEAKS FOUND AFTER ENGINE RUN. OPS CHECK GOOD.  PERFORMED HIGH POWER RUN ON NBR 2 ENGINE NO MESSAGES APPEARED. ALL ENGINE INDICATIONS NORMAL.

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