# SDR ASAA2023100245406

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 2, 2023
- Submitted: October 3, 2023
- Operation: Air carrier
- Aircraft: [N459AS](https://openairdocs.org/aircraft/N459AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36352
- Aircraft time: 35,637 hours, 11,174 cycles
- System (JASC): [2820 · Aircraft Fuel Distribution System](https://openairdocs.org/jasc/2820)
- Part: Spring
- Condition: Broken
- Location: Fuel Valve
- 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/ASAA2023100245406

## Discrepancy

WHILE ACCOMPLISHING OK TO INSTALL FOR PANEL 532AB, FOUND BROKEN SPRING ON PRIMER CHECK VALVE FLAPPER ASSEMBLY. REF AIPC 28-20-51-01A ITEM 110. GROUNDED - YES. VALVE ASSY WAS REPLACED AS FOLLOWS: REMOVED 3 NUTS AND BOLTS, INSTALLED NEW VALVE ASSY, REINSTALLED NUTS / BOLTS AND TORQUED TO STANDARD TORQUE VALUE, REF AMM 20-50-11. VALVE INSTALLED WITH NEW PACKING.

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