# SDR ABXA20260127029

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 27, 2026
- Submitted: January 27, 2026
- Operation: Air carrier
- Aircraft: [N391CM](https://openairdocs.org/aircraft/N391CM), registered now
- Make and model: Boeing 767381
- Aircraft serial: 32975
- Aircraft time: 59,872 hours, 24,440 cycles
- Engine: Ge CF680C2B6F
- System (JASC): [7930 · Engine Oil Indicating System](https://openairdocs.org/jasc/7930)
- Part: Oil Filter
- Part number: 21SN04467
- Part serial: CFL7540B
- Condition: Faulted
- Location: Rt Engine
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ABXA20260127029

## Discrepancy

DURING TAXI OUT  RIGHT OIL FILTER MSG APPEARED, ACFT RETURNED TO GATE (BTB) AND MTX GROUNDED ACFT.   REMOVED AND REPLACED THE RT ENG OIL FILTER DIFFERENTIAL PRESSURE SWITCH AND SCAV ENGINE OIL FILTER IAW AMM 79-35-01, & 79-21-04. OPS CHECKED GOOD.  ACFT RELEASED ETOPS 180. LEAK CHECK GOOD.  MX RETURNED ACFT TO SERVICE.

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