# SDR ASAA2023073044324

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 30, 2023
- Submitted: August 1, 2023
- Operation: Air carrier
- Aircraft: [N934AK](https://openairdocs.org/aircraft/N934AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 43374
- Aircraft time: 5,364 hours, 1,553 cycles
- System (JASC): [2800 · Aircraft Fuel System](https://openairdocs.org/jasc/2800)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: CL
- How discovered: V
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023073044324

## Discrepancy

ON CLIMB OUT #1 ENGINE SPAR VALVE CLOSED LIGHT ILLUMINATED BRIGHT BLUE FOR ABOUT 10 MINUTES, THEN THE LIGHT WENT OUT ON IT'S OWN. GROUNDED - YES. #1 ENG SPAR VALVE INDICATION TEST OK. REF. MM 28-22-00-710-801 OPENED & CLOSED 3 C/B'S. VERIFIED VALVE OPERATES SMOOTH & LT'S COME ON & OFF QUICKLY. NO HISTORY 90 DAYS. ETOPS GND VERIFICATION COMPLETE SEAMC ETOPS AUSTIN NOTIFIED.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.