# SDR 2026FA0000012

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 9, 2026
- Submitted: January 9, 2026
- Operation: General aviation
- Make and model: Agusta AW119MKII
- Registry model: [Agusta AW119MKII](https://openairdocs.org/model/agustawestland-philadelphia-aw119mkii) (OpenAirDocs)
- Aircraft serial: 15842
- Aircraft time: 294 hours
- System (JASC): [3030 · Pitot/Static Anti-Ice System](https://openairdocs.org/jasc/3030)
- Part: Pitot Tube
- Part number: 109072061105
- Part serial: 107244
- Condition: Damaged
- Location: Zone 200
- Part time: 294 hours
- Stage of operation: NR
- How discovered: O
- Nature of condition: M, B, H
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2026FA0000012

## Discrepancy

COMPONENTS ARE FAILING DUE TO OVERHEATING, CAUSING THE CONNECTOR’S SOLDER JOINTS TO MELT AND CAUSE THERMAL DAMAGE TO THE PITOT PROBE ELECTRICAL CONTACTS. 50 INSTANCES OF THE PITOT PROBE FAILURES BETWEEN 2022-08 AND 2025-11 OF THIS CRITICAL SAFETY ITEM ACROSS MULTIPLE AIRCRAFT SERIAL NUMBERS. PITOT-STATIC PROBE HEATER PINS (MALE CONTACTS) ARE DAMAGED DUE TO SANDBLASTING. IMAGES TAKEN BY A DIGITAL MICROSCOPE CONFIRMED THE DAMAGE OF THE SANDBLASTING AND THE CRATERED SURFACE LEFT BEHIND. CONNECTOR IS EXTREMELY LOOSE; LOW SURFACE AREA CONTACT BETWEEN CONNECTOR AND HEATER PINS ISSUE IS EXACERBATED BY VIBRATION. SOLDER ALLOY (SN60PB40) USED IN PRODUCTION FOR THIS APPLICATION MELTING RANGE IS (183-190°C); ARCING IS OCCURRING BETWEEN THE SOCKET AND PIN AT THE INTERFACE INCREASING THE TEMPERATURE. POOR SURFACE AREA CONTACT AT THE INTERFACE IS INCREASING RESISTANCE ALSO INCREASING THE TEMPERATURE AT THE INTERFACE. ROOT CAUSE IS SANDBLASTED HEATER PINS AND POOR ELECTRICAL CONTACT AT THE CONNECTOR INTERFACE TO THE PITOT PROBE. AIRCRAFT SERIAL 15842 IS BUNO 170179.  CONNECTOR MANUFACTURER IS DCS-CHOL ELECSYS DIVISION CAGE CODE: 30463.

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