Service difficulty report · Control Module · Boeing 767322

Difficulty date
April 25, 2024
Submitted
April 26, 2024
Operation
Air carrier
Aircraft
N662UA
Make and model
Boeing 767322
Aircraft serial
27159
Aircraft time
119,790 hours, 18,301 cycles
Part
Control Module
Part number
285T0015116
Part serial
9063
Condition
Defective
Location
E/E Bay
Part time
25,403 hours, 3,484 cycles
Stage of operation
CL
How discovered
9
Nature of condition
F, O
Precautionary procedure
A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

STAB TRIM LIGHT CAME ON AFTER T/O WITH FLAPS OUT. WITH FLAPS UP EICAS WENT OUT LEFT AND RIGHT EICAS COMPUTERS. PERFORMED FIM TASK 27-48FT809, FOUND COL TRIM SW FAULT BALL PERFORMED FIM TASK 27-48FT809, COMPLETED TEST 30 MCPD TEST, TEST PRESENT ON RT SAM, NO FAULTS PRESENT ON LT SAM. 64 SP BRK/ FLAP XDCR TEST, TEST 65 STAB TRIM TEST, ALL TESTS PASSED, NO FAULTS. WIRING CHECK BETWEEN LEFT AND RIGHT SAMS AND M525 AT M525 (D667B). NO SHORTS TO GROUND, NO WIRING DEFECTS FOUND. ACCOMPLISHED FIM TASK 27-48 FAULT TREE 809 AT BLOCK 23. ACCOMPLISHED WIRING CHECKS PER WDM 27-41-11 AND 27-41-21, BETWEEN PIN D11 AT M10181 (D881A)AND D11 (D883A) @ M10182. WIERS HAVE GOOD CONTINUITY BETWEEN PLUGS ( D665B) AT M524 PIN C11 AND REFERENCE LOGPAGE 7762720 FOR CORRECTIONREMOVED AND REPLACED SAM 525 REF: AMM 27-09-00-422-008. NEEDS INSTALLATION TEST REF: AMM 27-09-00-742-064 STEP G " STABILIZER TRIM/AILERON LOCKOUT MODULE TEST. PERFORMED STABILIZER TRIM/AILERON LOCKOUT MODULE SAM TEST. PER AMM 27-09-00-742-064 STEP G. TEST PASS AND AIRCRAFT REMAINS FULL CAPABILITY.