# SDR KC8A202602230014

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 22, 2026
- Submitted: February 23, 2026
- Operation: Air carrier
- Aircraft: [N453CK](https://openairdocs.org/aircraft/N453CK), registered now
- Make and model: Lear 45LEAR
- Aircraft serial: 187
- Aircraft time: 11,420 hours, 7,740 cycles
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Apu
- Part number: 38007261
- Part serial: P216
- Condition: Odor
- Location: Zone 200
- Part time: 3,844 hours, 8,299 cycles
- Stage of operation: CL
- How discovered: V
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/KC8A202602230014

## Discrepancy

5 MINUTES AFTER TAKEOFF, AIRCRAFT CABIN FILLED WITH WHITE SMOKE. SMOKE SMELLED LIKE OIL. NOT ELECTRICAL. AIRCRAFT RETURNED TO KYIP. SUSPECT APU OIL LEAK CAUSING THE SMOKE AND OIL ODOR TROUBLESHOOTING THE APU TO DETERMINE THE CAUSE AND CORRECTIVE ACTION.

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