# SDR IPXA2025040833949

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 4, 2025
- Submitted: April 8, 2025
- Operation: Air carrier
- Aircraft: [N463UP](https://openairdocs.org/aircraft/N463UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 28267
- Aircraft time: 38,823 hours, 20,586 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Unknown
- Condition: Fumes
- Location: Zone 200
- Stage of operation: CR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2025040833949

## Discrepancy

AT CRUISE LEVEL 300 SMELLED FUMES IN THE COCKPIT PERFORMED CHECKLIST CLEARED EMERGENCY AND LANDED IN IND. ACCCOMPLISHED CONDITIONAL INSPECTION PER MM 05-51-56-202. PERFORMED TROUBLESHOOTING PER FIM 21-00-01/801. INITIALLY FOUND OIL SMELL IN COCKPIT WHEN LEFT ENGINE WAS STARTED AND LEFT PACK OPERATED , SMELL DECCIPITATED AFTER A FEW SECONDS . CONTINUE TROUBLESHOOTING PROCEDURE PER FIM 21-00-01/301 RAN ENGINE AT TAKEOFF POWER PER AMM71-00-00 TEST 13. NO FUMES NOTED IN COCKPIT DURING ENGINE RUN.  REVERSED DMP PERFORMED AMM 21-00-01-201 NO ODOR FOUND. PLACARD REMOVED

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