What was found
INBOARD LEFT AND RIGHT STABILIZER DEICE AND INBOARD LEFT AND RIGHT WING DEICE REPEATEDLY FAIL ON BOTH TIMERS. RETURNED TO PDX. REMOVED AND REPLACED EJECTOR FLOW CONTROL VALVE IAW MM 30-20-04. OPS CHECKS GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
INBOARD LEFT AND RIGHT STABILIZER DEICE AND INBOARD LEFT AND RIGHT WING DEICE REPEATEDLY FAIL ON BOTH TIMERS. RETURNED TO PDX. REMOVED AND REPLACED EJECTOR FLOW CONTROL VALVE IAW MM 30-20-04. OPS CHECKS GOOD.