# SDR ASAA2023013041717

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 30, 2023
- Submitted: January 31, 2023
- Operation: Air carrier
- Aircraft: [N946AK](https://openairdocs.org/aircraft/N946AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 44085
- Aircraft time: 980 hours, 276 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: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023013041717

## Discrepancy

HISTORY OF LEFT WING ANTI ICE VALVE LIGHT ILLUMINATION. ACCOMPLISH ENG ASA TC MAX-30EA-25064. GROUNDED - YES. ACCOMPLISHED ASA TC MAX-30EA-25064 LH WING THERMAL ANTI-ICE VALVE INLET TUBE INSPECTION. FOUND MOISTURE INSIDE INLET TUBE. BLEW OUT MOISTURE FROM TUBE WITH COMPRESSED AIR. PERFORMED WING THERMAL ANTI-ICE VALVE OPS TEST WITH APU BLEED AIR REF B737-9 AMM 30-11-11-710-801. TEST OK. NO EXISTING FAULTS RELATED TO WING ANTI-ICE. APPROXIMATELY 15 DROPS OF WATER CAME OUT FROM INLET TUBE WHILE SHAKING IT.

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