# SDR 2007FA0000006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 26, 2006
- Submitted: January 4, 2007
- Operation: General aviation
- Aircraft: [N865AF](https://openairdocs.org/aircraft/N865AF), registered now
- Make and model: Grob G 120A
- Registry model: [Grob G 120A](https://openairdocs.org/model/grob-werke-g-120a) (OpenAirDocs)
- Aircraft serial: 85005
- Engine: Lyc AEIO540*
- System (JASC): [3700 · Vacuum System](https://openairdocs.org/jasc/3700)
- Part: Shaft
- Part number: 1U478
- Part serial: T686A
- Condition: Broken
- Location: Air Pump
- Part time: 194 hours
- Stage of operation: TX
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2007FA0000006

## Discrepancy

DURING ENGINE START, SUCTION PRESSURE WAS READING ZERO, DURING FURTHER TROUBLESHOOTING, TECH FOUND THE ENGINE DRIVEN DRIVEN DRY AIR PUMP HAD A BROKEN SHAFT.  PROBABLE CAUSE COULD BE FROM VIBRATION OR HARD START.  NO RECOMMENDATION AT THIS TIME.  (K)

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