R (b) At the SEC2 receptacle, do a check of the resistance between pin
R AB/12K and pin AE/12A (Ref. ASM 27-92/05).

R 1_ If the resistance is less than 280 ohms:

R a_ Remove the RELAY-SEC 2 ANN SPLY (41CE2) (Ref. IPC
R 27920803).

R b_ Do a check of the resistance of the relay between pin X1
R and X2.
R - If the resistance is less than 280 Ohms:

R . replace the RELAY-SEC 2 ANN SPLY (41CE2) (Ref. IPC R 27920803)

R . install the SEC2 (Ref. AMM TASK 27-94-34-400-001). R - If the resistance is between 280 and 400 ohms:

R . do a check and repair the wiring of the RLY SEC FAULT R signal from the relay to the SEC (Ref. ASM 27-92/05)

R . install the relay

R . replace the SEC-2 (1CE2) (Ref. AMM TASK 27-94-34-400-R 001).

R 2_ If the resistance is more than 400 ohms:

R a_ Remove the relay (41CE2).

R b_ Do a check of the resistance of the relay between pin X1
R and X2.
R - If the resistance is more than 400 ohms:

R . replace the RELAY-SEC 2 ANN SPLY (41CE2) (Ref. IPC R 27920803).

R . install the SEC 2 (Ref. AMM TASK 27-94-34-400-001). R - If the resistance is between 280 and 400 ohms:

R . do a check and repair the wiring of the RLY SEC FAULT R signal from the relay to the SEC (Ref. ASM 27-92/05)

R . install the relay

R . install the SEC 2 (Ref. AMM TASK 27-94-34-400-001).

R 3_ If the resistance is between 280 and 400 ohms:
R a_ Remove the RELAY-SEC 2 ANN SPLY (41CE2) (Ref. IPCR 27920803).
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞27-94-00∞∞∞∞∞∞∞∞∞∞Page A269
 Aug 01/05 CES

R  - if the warning SEC2 stays, install the relay (Ref. IPC 
R  27920803) and see Para. b_. 
R  - if the warning SEC2 goes off, replace the RELAY-SEC 2 ANN 
R  SPLY (41CE2) (Ref. IPC 27920803) 
R  - install the SEC 2 (Ref. AMM TASK 27-94-34-400-001). 
R  b_  Do a check and repair the wiring of the DSI 4/4 (SEC 2
R  FAILED) signals from the FCDC1 (3CE1) and the FCDC2 (3CE2) 
R  to the RELAY-SEC 2 ANN SPLY (41CE2) (Ref. ASM 27-95/04) and 
R  (Ref. ASM 27-95/05). 
R  c_  Install the SEC 2 (Ref. AMM TASK 27-94-34-400-001).
R  B. Do the test given in Para. 3.

R TASK 27-94-00-810-903

R SEC 3 Fault without any associated maintenance message R 1. Possible Causes
_______________
R - SEC-3 (1CE3)
R - RELAY-SEC 3 ANN SPLY (41CE3)
R - wiring of the RLY SEC FAULT signal from the relay to the SEC
R - wiring of the DSI 20/5 (SEC 3 FAILED) signals

R 2. Job Set-up Information

______________________
R A. Referenced Information
R -------------------------------------------------------------------------------R REFERENCE DESIGNATION R -------------------------------------------------------------------------------
R IPC 27920803 R AMM 27-94-00-710-001 R R AMM 27-94-34-000-001 R AMM 27-94-34-400-001 R AMM 27-96-00-740-001 R ASM 27-92/05 R ASM 27-95/04 R ASM 27-95/05
R 3. Fault Confirmation
__________________
R A. Test
Operational Test of the Spoiler Elevator Computer 3
(SEC 3)
Removal of the SEC (1CE1,1CE2,1CE3)
Installation of the SEC (1CE1,1CE2,1CE3)
BITE Test of the EFCS (Ground Scanning)

R (1) Do the BITE test of the EFCS (ground scanning) (Ref. AMM TASK 27-96-R 00-740-001).

R 4. Fault Isolation
_______________

R A. If the test confirms the fault:
R - do the operational test of the SEC3 (Ref. AMM TASK 27-94-00-710-001) to
R make sure that the SEC3 servoes its associated surfaces.

R (1) If the flight controls move according to the SEC3 servoing:

R (a) Remove the SEC3 (Ref. AMM TASK 27-94-34-000-001).

R (b) At the SEC3 receptacle, do a check of the resistance between pin
R AB/12K and pin AE/12A (Ref. ASM 27-92/05).

R 1_ If the resistance is less than 280 ohms:

R a_ Remove the RELAY-SEC 3 ANN SPLY (41CE3) (Ref. IPC
R 27920803).

R b_ Do a check of the resistance of the relay between pin X1
R and X2.
R - If the resistance is less than 280 Ohms:

R . replace the RELAY-SEC 3 ANN SPLY (41CE3) (Ref. IPC R 27920803)

R . install the SEC3 (Ref. AMM TASK 27-94-34-400-001). R - If the resistance is between 280 and 400 ohms:

R . do a check and repair the wiring of the RLY SEC FAULT R signal from the relay to the SEC (Ref. ASM 27-92/05)

R . install the relay

R . replace the SEC-3 (1CE3) (Ref. AMM TASK 27-94-34-400-R 001).

R 2_ If the resistance is more than 400 ohms:

R a_ Remove the relay (41CE3).
　
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