Service difficulty report · Wire · Boeing 737824

Difficulty date
June 26, 2024
Submitted
June 28, 2024
Operation
Air carrier
Aircraft
N24212
Make and model
Boeing 737824
Aircraft serial
28772
Aircraft time
76,197 hours, 27,946 cycles
Part
Wire
Part number
UNKNOWN
Condition
Damaged
Location
Transducer
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

MACH TRIM FAIL LIGHT AND CA PITCH FD FAILED ON TAKE OFF POSITION TRANSDUCER OR WIRING ISSUE. FOUND P18-1 C5 AFCS SYS A SENS EXC AC OPEN (HAS HISTORY). DFCS BITE SHOWED FCC 1 FAIL (NO POWER DUE TO POPPED BREAKER). CLOSED BREAKER- DFCS BITE PASSES. SEE SSM 22-11-11-101 FOR PATHS FROM BREAKER. POSSIBLE SENSOR / TRANDUCER OR REPAIRED WIRE #W1024-2005R-20 REF BSWPM 20-10-13 AND WD 22-11-11, ALSO CORRECTED WIRE ROUTING TO PREVENT REOCURRANCE OF CHAFING. C/B C1041 NOW STAYS IN. MACH TRIM CKS OK. PERFORMED LAND VERIFY TEST, OP CKS GOOD. A/C IS FULLY CAT CAPABLE.