# SDR 98ZZZX3265

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 1, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- System (JASC): [2530 · Buffet/Galleys](https://openairdocs.org/jasc/2530)
- Part: Relief Valve
- Part number: 620223XX
- Condition: Sticks
- Location: Coffeemaker
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/98ZZZX3265

## Discrepancy

RELIEF VALVES STICKS.  WILL NOT RELIEVE AT RATED PRESSURE.  THIS PHENOMENA HAS BEEN OBSERVED AS LITTLE AS TWO MONTHS AFTER A PREVIOUS STOP VISIT.  SUBMITTER BELIEVES THE CONDITION RESULTS FROM THE RUBBER COMPOSITION OF THE VALVE FACE MAKING CONTACT AND STICKING.  NOTE:  IT IS IMPERATIVE THAT THE RELIEF VALVE (20, IPL FIGURE 7) BE CHECKED FOR PROPER OPERATION EVERY SIX MONTHS/1500 FLIGHT HOURS, OR EVERY SHOP VISIT.

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