# SDR SWAA2020032532802

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 5, 2020
- Submitted: March 25, 2020
- Operation: Air carrier
- Aircraft: [N7867A](https://openairdocs.org/aircraft/N7867A), registered now
- Make and model: Boeing 737-7Q8
- Registry model: [Boeing 737-7Q8](https://openairdocs.org/model/boeing-737-7q8) (OpenAirDocs)
- Aircraft serial: 30633
- Aircraft time: 49,559 hours, 33,220 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Valve
- Part number: 2079801
- Part serial: 0246986
- Condition: Faulty
- Stage of operation: UK
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2020032532802

## Discrepancy

FLIGHT ATTND REPORTED THAT THERE WAS A STRONG THUMPING SOUND ON THE FLOOR OF THE FWD GALLEY UNDER THERE JUMPSEAT (AIR RETURNED BACK TO PDX) / CLEARING DMA LG PG 0418863 R&R VALVE PER AMM 21-27-05 OPS CHECK NORMAL CLOSING# 31611 PN OFF/ON: 20798-01 SN OFF:0246986 SN ON: 0046916

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