# SDR ASAA2023091445158

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 14, 2023
- Submitted: September 18, 2023
- Operation: Air carrier
- Aircraft: [N924AK](https://openairdocs.org/aircraft/N924AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 43333
- Aircraft time: 7,274 hours, 2,054 cycles
- System (JASC): [3010 · Airfoil Anti/De-ice System](https://openairdocs.org/jasc/3010)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: CR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023091445158

## Discrepancy

USED WING ANTI-ICE ON ARRIVAL UP IN 20-30K ALTITUDE. SWITCH ON L VALVE AMBER LIGHT ON. GROUNDED - YES. NO HISTORY 60 DAYS. C/W TASK 30-11-200-801 LEFT WING ANTIICE HEALTH CHECK. OPS CHK GOOD, COULD NOT RECREATE ZASABNO LATCH, AUDT MEESAGE OK. SAVID.

---
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.