# SDR DXTA2026061808460

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 15, 2026
- Submitted: June 18, 2026
- Operation: Air carrier
- Aircraft: [N396QS](https://openairdocs.org/aircraft/N396QS), registered now
- Make and model: Cessna 680SOV
- Aircraft serial: 6800240
- Aircraft time: 15,359 hours, 10,078 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Apu
- Part number: 38007851
- Part serial: P701
- Condition: Malfunctioned
- Location: Cabin Temp
- Part time: 6,814 hours, 4,579 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: M, B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2026061808460

## Discrepancy

REPEAT WRITE UP.  DURING FLT AT CRUISE, THERE IS A BURNING OIL ODOR IN THE CABIN. CABIN WILL NOT COOL DOWN CABIN REMAINED OVER 90 DEGREES WITH ACFT RUNNING ON MAX COOL FOR OVER AN HOUR ALL THE WAY INTO THE FLT LEVELS.   COMPLIED WITH OPS REQUIREMENTS OF THE MEL. COCKPIT & CABIN TEMP CONTROL SYSTEMS ARE CONSIDERED INOPERATIVE. CABIN PRESSURIZATION IS CONSIDERED INOP.  REMOVED APU ASSY IAW HNYWL RECOMMENDATION & INSTALLED CUSTOMER SUPPLIED REPAIRED APU SERVICED APU, PERFORMED APU HRS UPDATE, & PERFORMED GOOD LEAK & OPS CHECK OF APU. WORK PERFORMED IAW AMM 49-10-00, 49-00-10, & 12-40-39 (NEW APU HOURS (GTC) 2388.2 APU CYCLES 4508).

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