Sunday, September 20, 2026

LEAK CHECK OF TCT-FAV SENSELINE & Replacement of TCT of CFM Engine


FIN- 7170HM1/7170HM2

P/N-342B050000

O Ring P/N-NSA8203-128

Thermostat Filter P/N-398-21

Seal P/N-S4165

Bleed tester P/N-98L36103002000& SBE2213

AMM reference:-36-11-43-000/400-001-A

CBs to be safetied open:-

122VU/ Z22,Z23

59VU/D11,D12

FADEC PB OFF

Zero locking Tool and

TR to be deactivated for Maintenance.

TQ wrench -116 to 142 lbft

PANEL to be opened at Pylon -423 DT

Location of FAV on CFM engine is below Precooler Aft looking Fwd in RHS.

Senseline

Senseline at TCT end

Senseline at FAV End

TCT Filter

TCT 

Leak Check:-

Refer AMM SUB TASK 36-11-00-720-068-A, Apply leak detection soap at the connection of bleed air ducts(duct joints,flexible connections)

This is a simple guide to do the job ,refer applicable AMM task.





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