# SDR Q5QA20260206001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 30, 2026
- Submitted: February 6, 2026
- Operation: Air carrier
- Aircraft: [N119QD](https://openairdocs.org/aircraft/N119QD), registered now
- Make and model: Pilats PC1245
- Aircraft serial: 119
- Aircraft time: 23,653 hours, 26,437 cycles
- System (JASC): [2435 · Starter-Generator](https://openairdocs.org/jasc/2435)
- Part: Starter Gen
- Part number: 23085025
- Part serial: Y0090
- Condition: Vibration
- Location: Zone 400
- Stage of operation: DE
- How discovered: O
- Nature of condition: E
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/Q5QA20260206001

## Discrepancy

THE PILOT NOTICED AN ENGINE VIBRATION ON DECENT INTO READING REGIONAL AIRPORT. THE #1 STARTER- GENERATOR PART NUMBER A 23085-025, SERIAL NUMBER Y0090 WAS FOUND TO BE THE CAUSE OF THE VIBRATION. THIS STARTER-GENERATOR WAS PREVIOUSLY OVERHAULED AND HAD BEEN IN SERVICE FOR 679.1 HOURS AND 801 LANDINGS BEFORE REMOVAL. THE STARTER-GENERATOR AND ENGINE WERE INSPECTED, AND AN OVERHAULED STARTER-GENERATOR UNIT WAS INSTALLED. THE AIRCRAFT WAS RETURNED TO SERVICE WITHOUT FURTHER INCIDENT. UPON CLOSER EXAMINATION THE REAR BEARING WAS THE CAUSE OF THE VIBRATION, THE VENDOR WAS CONTACTED AND A MORE COMPREHENSIVE EVALUATION WILL FOLLOW.

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