# SDR CALA2025061605557

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 12, 2025
- Submitted: June 16, 2025
- Operation: Air carrier
- Aircraft: [N13720](https://openairdocs.org/aircraft/N13720), registered now
- Make and model: Boeing 737724
- Aircraft serial: 28939
- Aircraft time: 80,895 hours, 28,477 cycles
- System (JASC): [3010 · Airfoil Anti/De-ice System](https://openairdocs.org/jasc/3010)
- Part: Anti-Ice Valve
- Part number: 672906002
- Part serial: 9234
- Condition: Faulted
- Location: Right Wing
- Part time: 34,274 hours, 12,956 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2025061605557

## Discrepancy

R WING ANTI ICE VALVE ON CLB..COMPLETED QRH PROCEDURE WHICH RES ULTED IN ONE PACK OPERATION TESTED R/H ANTI ICE VALVE REF AMM 36-11-11-710-801 AND FOUND VALVE INOP DEACTIVATED LEADING EDGE DEVICES REF AMM TASK 27-81-00-040-801 REMOVED AND REPLACED R/H WING ANTI ICE VALVE LEAK CHECK AND OPS CK GOOD REF AMM TASK 30-11-11-400-801 AND REACTIVATED LEADING EDGE DEVICES REF AMM TSAK 27-81-00-040-801.PARTS USED: 29-3011-9-0001, QTY :1 ROTABLE PARTS CHG:TT # 1526112 SN OFF 9234 PN OFF 29-3011-9-0001.VALVE, HEAT S/O OFF 29-3011-9-0001 9234 ON 29-3011-9-0001 9196

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