# SDR 4DSR202308030001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 2, 2023
- Submitted: August 3, 2023
- Operation: General aviation
- Filed by: [Amentum Services Inc, repair station 4DSR637B](https://openairdocs.org/faa-repair-station/4DSR637B/amentum-services-inc.md) (OpenAirDocs)
- Aircraft: [N497PC](https://openairdocs.org/aircraft/N497PC), registered now
- Make and model: Pilats PC1245
- Aircraft serial: 497
- Aircraft time: 7,728 hours, 5,638 cycles
- Engine: Pwc PT6A67B
- Engine time: 4,107 hours, 5,493 cycles
- System (JASC): [7510 · Engine Anti-Icing System](https://openairdocs.org/jasc/7510)
- Part: Deice System
- Part number: 5302412140
- Part serial: 29540710
- Condition: Cracked
- Location: Zone 400
- Part time: 7,728 hours, 7,728 cycles
- Component: Cowling, Lower, Pilats
- Component part number: 5711012402
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/4DSR202308030001

## Discrepancy

DURING SCHEDULED INSPECTION, CARBON STAINING WAS OBSERVED AT EDGES OF THE HEATED ENGINE DEICE LIP. REMOVED FOR INSPECTION AND FOUND PACKING INSULATION/ALUMINUM TAPE OVERHEATED AND HEAVILY CARBON STAINED. UPON INSULATION REMOVAL, FOUND 2 CRACKS ABOUT 6 INCHES LONG. CRACKS ARE LOCATED AT CENTER PART OF DE-ICE LIP RUNNING LH TO RH, FOLLOWING EXISTING SEAMS.

---
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.