# SDR RU3A201912067071

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 27, 2019
- Submitted: December 6, 2019
- Operation: Air carrier
- Aircraft: [N73](https://openairdocs.org/aircraft/N73), registered now
- Make and model: Beech 300BEECH
- Aircraft serial: FF8
- Aircraft time: 15,669 hours, 8,405 cycles
- Engine: Pwa PT6*
- System (JASC): [7500 · Engine Bleed Air System](https://openairdocs.org/jasc/7500)
- Part: Switch
- Part number: 903800023
- Part serial: UNKNOWN
- Condition: Failed
- Location: Bleed Air
- Stage of operation: CR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/RU3A201912067071

## Discrepancy

L BL AIR FAIL LIGHT 1 HR INTO FLIGHT. LIGHT RESET WITH PNEU/ENV OFF. ILLUMINATED 30" LATER. RESET WITH PNEU/ENV OFF. NEVER ILLUMINATED AGAIN FOR .8 FLIGHT TIME. DISCREPANCY CLEARED WITH THE REPLACEMENT OF LEFT HAND BLEED AIR PRESSURE SWITCH

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