# SDR K5SR20170117P2752

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 16, 2017
- Submitted: January 18, 2017
- Operation: General aviation
- Filed by: [Elevate MRO, LLC, repair station K5SR339N](https://openairdocs.org/faa-repair-station/K5SR339N/elevate-mro-llc.md) (OpenAirDocs)
- Aircraft: [N113HS](https://openairdocs.org/aircraft/N113HS), registered now
- Make and model: Cirrus SR22T
- Registry model: [Cirrus SR22T](https://openairdocs.org/model/cirrus-design-sr22t) (OpenAirDocs)
- Aircraft serial: 0484
- Aircraft time: 272 hours
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Filter
- Part number: 21986203
- Part serial: NA
- Condition: Collapsed
- Location: Cabin Air
- Part time: 272 hours
- Stage of operation: NR
- 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/K5SR20170117P2752

## Discrepancy

CUSTOMER REPORTED THAT HIS TKS SYSTEM HAD LITTLE TO NO FLOW IN-FLIGHT AND ON GROUND. PERFORMED OPERATIONAL CHECK AND CONFIRMED DISCREPANCY.  PERFORMED INSPECTION OF TKS FILTER AND FOUND THAT FILTER HAD COLLAPSED AND SWELLED, WHICH CAUSED THE TKS #1 AND #2 METERING PUMPS TO FAIL AND 3 WAY VALVE TO OVER PRESSURIZE AND BLOW OUT THE POPPETS ON THE 3 WAY VALVE. REMOVED AND REPLACED TKS FILTER, BOTH PUMPS AND 3 WAY VALVE. OPERATIONAL AND LEAK CHECK OF TKS CHECKED SATISFACTORY.

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