# SDR CA190523001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 23, 2019
- Submitted: August 17, 2020
- Operation: General aviation
- Make and model: Diamon DA20-C1
- Registry model: [Diamon DA20-C1](https://openairdocs.org/model/diamond-aircraft-ind-da20-c1) (OpenAirDocs)
- Aircraft time: 5,454 hours
- Engine: Cont IO240B
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Plenum
- Part number: 653885
- Condition: Cracked
- Location: Intake
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA190523001

## Discrepancy

(CAN) AIRCRAFT WAS SNAGGED FOR RUNNING VERY ROUGH AT IDLE, EXTENSIVE INSPECTION REVEALED THAT ALL 3 INDUCTION INTAKE TUBES OF THE ENGINE WERE CRACKED ON THEIR FLANGES. FURTHER INSPECTION SHOWED THAT THE INTAKE MANIFOLD PLENUM MOUNTING POINT WAS LOOSE CAUSING EXCESSIVE VIBRATION TO ALL 4 TUBES CAUSING THEM TO CRACK. (TC# 20190523001)

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