# SDR TIMA20251226004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 23, 2025
- Submitted: December 26, 2025
- Operation: Air carrier
- Aircraft: N24BH
- Make and model: Beech 99
- Registry model: [Beech 99](https://openairdocs.org/model/beech-99) (OpenAirDocs)
- Aircraft serial: U67
- Aircraft time: 37,172 hours, 52,153 cycles
- Engine: Pwa PT6A27
- Engine time: 16,857 hours, 17,464 cycles
- System (JASC): [3397 · Light System Wiring](https://openairdocs.org/jasc/3397)
- Part: Electrical Box
- Condition: Contaminated
- Location: Zone 200
- Stage of operation: CR
- How discovered: O
- Nature of condition: C, B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/TIMA20251226004

## Discrepancy

WHILE IN CRUISE FLIGHT THE CIRCUIT BREAKER PANEL STARTED SMOKING. PILOT REQUESTED APPROACH FOR PRIORITY IN HELENA, MT. PILOT SAID THE SMOKE SHORTLY STOPPED AFTER 5 SECONDS. PILOT HAD A NORMAL LANDING IN KHLN AND CONTACTED MAINTENANCE. MAINTENANCE SAID THAT DE-ICE FLUID HAD LEAKED INTO THE PANEL.

---
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.