# SDR CA190115015

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 15, 2019
- Submitted: August 13, 2020
- Operation: General aviation
- Make and model: Boeing 737-200
- Registry model: [Boeing 737-200](https://openairdocs.org/model/boeing-737-200) (OpenAirDocs)
- Aircraft time: 50,396 hours
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Plug
- Part number: 380428101
- Condition: Dislodged
- Location: Borescope
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA190115015

## Discrepancy

(CAN) APU OVERSPEED LIGHT ILLUMINATED DURING APU START. THE MAINTENANCE INVESTIGATION FOUND A BORESCOPE PLUG WAS FOUND IN THE APU BAY, NO LONGER INSTALLED IN THE APU WHICH CAUSED A BLEED AIR LEAK.

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