在扇氣閥溫控器之網狀濾網新設計或改善未完成前，評估縮短扇溫控器進廠檢視或翻修時限。

Consider evaluating the maintenance program for ThC shop-in service or overhaul interval before the new grid filter design or modification come to effect.

11/0/20104 CPA (Cathay Pacific Airways)

CPA response
In addition to the information already provided in the TW-ASC final report in the section describing safety actions already taken by CPA. Nil further
Thermostat (ThC) Reliability Recovery Plan:
Initial action - remove all ThCs with TSI > 15000 FH.
Current ThC overhaul programme.
Weibull analysis shows an interval of 3100 FC will provide a failure rate of (less than) 25％.
ThC will be removed and sent to Liebherr for overhaul when they have accumulated 3100 FC.
High time ThC replacement is ongoing (Spare provision & workshop TAT driving program).
AMS task already raised to remove ThC based on 3100 FC life limit.

飛安會意見:接受。