# SDR CALA2020032700731

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 24, 2020
- Submitted: March 27, 2020
- Operation: Air carrier
- Aircraft: [N673UA](https://openairdocs.org/aircraft/N673UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 29241
- Aircraft time: 74,680 hours, 15,750 cycles
- System (JASC): [2820 · Aircraft Fuel Distribution System](https://openairdocs.org/jasc/2820)
- Part: Check Valve
- Part number: 2020138101
- Condition: Out Of Position
- Location: Fuel System
- Stage of operation: IN
- 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/CALA2020032700731

## Discrepancy

REF TASKCARD 63-4720-1-7800 FOUND EXISTING FUEL CROSS VENT CHECK VALVE P/N: 2020138-101 LOCATED AT LHW STRINGER U-9,O/B OF RIB 31 REFER TO AMM 47-21-03 FIG 401 SHEET 1 & SB767-47-0001, IT SHOULD BE LOCATED AT STRINGER U-13. NRC 9130578 ACCOMPLISHED EC/RA 4721-01009 REV ORG ADD EMP:V897897

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