Slats - Pin Program Disagree Installation Fault

TASK 27-81-00-810-833-A
Slats - Pin Program Disagree Installation Fault

1. Possible Causes

SLAT/FLAP CONTR.COMP. [21CV]
SLAT/FLAP CONTR.COMP. [22CV]
aircraft wiring

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 27-51-34-000-001	Removal of the SFCC
AMM 27-51-34-400-001	Installation of the SFCC
ASM 278108
AMM 31-32-00-860-006	Procedure to Get Access to the SYSTEM REPORT/TEST F/CTL Page

3. Fault Confirmation
Subtask 27-81-00-740-067-A

A. Test
(1) Get access to the SYSTEM REPORT/TEST F/CTL AMM 31-32-00-860-006, press the line key for the applicable SFCC menu, and press the line key for SLT class 3 faults.
(2) If you can get access to the SFCC menu, and SLT class 3 faults, the fault has gone. The system is also serviceable if "PIN PROGRAM DISAGREE INSTALLATION" is shown in class 3 faults, no further action is required. The fault has gone but it has been recorded.
(3) If you cannot get access to the SFCC menu, do the fault isolation procedure.

4. Fault Isolation
Subtask 27-81-00-810-082-A

A. Procedure

NOTE: During this procedure when you interchange, remove or install an SFCC, the AMM procedures AMM 27-51-34-000-001 and AMM 27-51-34-400-001 must be used.

(1) If the message "pin prog disagree slt" is shown:
(a) Interchange the SLAT/FLAP CONTR.COMP. [21CV] with SLAT/FLAP CONTR.COMP. [22CV] .
(b) Do the test in Para. 3. A. (1).
(2) If the fault moves to the other SFCC position:
(a) Put the serviceable SFCC back in its initial position.
(b) Replace the SFCC that has the fault.
(c) Do the test in Para. 3. A. (1).
(3) If the fault does not move to the other SFCC position:
(a) Put the SFCC's back in their initial position.
(b) Do a check of the aircraft wiring at the SFCC slat channel ASM 278108.
(c) Repair any defect found.
(d) Do the test in Para. 3. A. (1).

[Rev.8 from Aug 2018] 2026.04.04 04:39:13 UTC