DOC AIRBUS | TSM A320FLoss of the Left Throttle Lever Transducer Signal for the SEC 2
TASK 27-94-00-810-812-A
Loss of the Left Throttle Lever Transducer Signal for the SEC 2
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 27-94-00-860-075-A
Subtask 27-94-00-810-061-E ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:28:12 UTC
Loss of the Left Throttle Lever Transducer Signal for the SEC 2
1. Possible Causes
- SEC-2 [1CE2]
- CTL UNIT-THROTTLE, ENG 1 [8KS1]
wiring of VS and SPLY signals from the SEC2 (1CE2) to the throttle control unit (8KS1)
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 24-41-00-861-002 | Energize the Aircraft Electrical Circuits from the External Power |
| ASM 279220 | |
| AMM 27-94-34-000-001 | Removal of the SEC |
| AMM 27-94-34-400-001 | Installation of the SEC |
| AMM 27-96-00-740-001 | BITE Test of the EFCS (Ground Scanning) |
| AMM 76-11-19-000-040 | Removal of the Throttle Control Unit |
| AMM 76-11-19-000-042 | Removal of the Throttle Control Unit |
| AMM 76-11-19-400-040 | Installation of the Throttle Control Unit |
| AMM 76-11-19-400-042 | Installation of the Throttle Control Unit |
Subtask 27-94-00-860-075-A
A. Job Set-Up
(1) Energize the aircraft electrical circuits AMM 24-41-00-861-002.
(2) On the overhead panel 24VU:
Subtask 27-94-00-700-072-A 4. Fault Isolation(1) Energize the aircraft electrical circuits AMM 24-41-00-861-002.
(2) On the overhead panel 24VU:
- release the FLT CTL/SEC2 pushbutton switch (the OFF legend comes on).
- push the FLT CTL/SEC2 pushbutton switch (the OFF legend goes off).
- put the left throttle lever in TO/GA and MAX REV during 5 seconds.
Subtask 27-94-00-810-061-E ** ON A/C NOT FOR ALL
A. If the BITE test gives the maintenance message:
SEC 2 OR INPUT OF L THROTTLE CTL UNIT 8KS1
Subtask 27-94-00-810-061-I ** ON A/C NOT FOR ALL SEC 2 OR INPUT OF L THROTTLE CTL UNIT 8KS1
- replace the SEC-2 [1CE2] , AMM 27-94-34-000-001 and AMM 27-94-34-400-001.
- replace the CTL UNIT-THROTTLE, ENG 1 [8KS1] , AMM 76-11-19-000-040 and AMM 76-11-19-400-040.
- do a check and repair the
wiring of VS and SPLY signals from the SEC2 (1CE2) to the throttle control unit (8KS1) ASM 279220.
A. If the BITE test gives the maintenance message:
SEC 2 OR INPUT OF L THROTTLE CTL UNIT 8KS1
Subtask 27-94-00-700-073-A SEC 2 OR INPUT OF L THROTTLE CTL UNIT 8KS1
- replace the SEC-2 [1CE2] , AMM 27-94-34-000-001 and AMM 27-94-34-400-001.
- replace the CTL UNIT-THROTTLE, ENG 1 [8KS1] , AMM 76-11-19-000-042 and AMM 76-11-19-400-042.
- do a check and repair the
wiring of VS and SPLY signals from the SEC2 (1CE2) to the throttle control unit (8KS1) ASM 279220.
B. Do the operational test and the BITE test given in Para. 3.