# SDR IPXA2026040707983

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 2, 2026
- Submitted: April 7, 2026
- Operation: Air carrier
- Aircraft: [N383UP](https://openairdocs.org/aircraft/N383UP), registered now
- Make and model: Boeing 767-300
- Registry model: [Boeing 767-300](https://openairdocs.org/model/boeing-767-300) (OpenAirDocs)
- Aircraft serial: 67972
- Aircraft time: 4,490 hours, 2,001 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: A/C Pack
- Condition: Odor
- Stage of operation: TX
- 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/IPXA2026040707983

## Discrepancy

STRONG SMELL OF OIL IN THE COCKPIT WHEN USING THE PACKS WITH APU ON STARTED APU AND OPERATED LEFT AND RIGHT AIR CONDITIONING PACKS IN ALL MODES FROM APU BLEEDS FOR 1 HOUR REFERENCE AMM 49-11-00 AND 21-00-00 WITH NO OIL SMELL COMING FROM VENTS IN COCKPIT AND CARGO AREAS.  INSPECTED APU BLEED DUCT. NO OIL OR CONTAMINATION PRESENT IN DUCT. NO HISTORY FOUND.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.