Failure of TRA Position Signal on Engine 2

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1. Possible Causes
· Wiring from the EEC (4000KS) to the engine 2 throttle control unit (8KS2)
2 Job Set-up Information
A. Referenced Information
REFERENCE DESIGNATION
Ref. ASM 73-25-12
Ref. AMM 78-31-00-710-041 Operational Test of the Thrust Reverser System with the CFDS
3. Fault Confirmation
Subtask 78-30-00-710-164-A
A. Test
(1) Do the operational test of the thrust reverser system with the CFDS. (through FADEC 2A and 2B
menus) Ref. AMM 78-31-00-710-041 .
4. Fault Isolation
Subtask 78-30-00-810-123-A
A. If the test gives the message
FAULT DETECTED
SEE GROUND SCANNING:
· Get the GROUND DATA of the FADEC (2A and 2B) menus on the MCDU (Ref. 71-00-00 Page Block
301 Task Supporting Data).
(1) On the Ground DATA menu, read the clear message and its associated fault code.
(a) If the FADEC 2A menu give the message TRA RES OR POS FAULT and the fault code
TRAMMF is present:
· Do a check and repair the Wiring from the EEC (4000KS) to the engine 2 throttle control unit
(8KS2) :
(*) Pins J1/S,h,U,i,T,j to pins C/B,A,C,D,E,F, Ref. ASM 73-25-12
(b) If the FADEC 2B menu gives the message TRA RES OR POS FAULT and the fault code
TRAMMF is present:
· Do a check and repair the Wiring from the EEC (4000KS) to the engine 2 throttle control unit
(8KS2)
(*) Pins J7/S,h,U,i,T,j to pins C/B,A,C,D,E,F, Ref. ASM 73-25-12
(c) If the FADEC 2A and 2B menus give the message REV POS OR LVDT FAULT and the fault
code REVMMF is present:
· handcrank the reverser to the stowed position.
Subtask 78-30-00-710-165-A
B. Do the test given in Para 3. [Rev.6 from Feb 2017] 2026.04.04 04:38:09 UTC