# SDR CALA2026082618942

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 25, 2026
- Submitted: August 27, 2026
- Operation: Air carrier
- Aircraft: [N91007](https://openairdocs.org/aircraft/N91007), registered now
- Make and model: Boeing 787-10
- Registry model: [Boeing 787-10](https://openairdocs.org/model/boeing-787-10) (OpenAirDocs)
- Aircraft serial: 40929
- Aircraft time: 30,743 hours, 4,462 cycles
- System (JASC): [3010 · Airfoil Anti/De-ice System](https://openairdocs.org/jasc/3010)
- Part: Circuit Card
- Part number: 003CM000300
- Part serial: 0878
- Condition: Faulted
- Location: Sta 1209
- Part time: 30,743 hours, 4,462 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/CALA2026082618942

## Discrepancy

WING ANTI-ICE CAUTION SYSTEM CANNOT PROVIDE ICE PROTECTION TO 2 OR MORE ZONE PAIRS ON WING OR LOSS OF COMMUNICATION FROM THE WIPCU TO DCA. DB WIPCU SEQUENCE CONTROLLER CARD CHANNEL 3 DB WIPCU SEQUENCE CONTROLLER CARD CHANNEL 2 DB WIPCU SEQUENCE CONTROLLER CARD CHANNEL 1.  R & R BOARD CIRCUIT SEQUENCE WIPS IAW AMM DMC-B787-A-30-11-03-00A-720A-A. ALL OPS CHKD GOOD & SOFTWARE LOAD CHKD GOOD.

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