Service difficulty report · Fire Loop · Boeing 737824

Difficulty date
February 1, 2022
Submitted
February 2, 2022
Operation
Air carrier
Aircraft
N24224
Make and model
Boeing 737824
Aircraft serial
28933
Aircraft time
71,412 hours, 25,537 cycles
Part
Fire Loop
Part number
29261190004
Condition
Damaged
Location
Nr 1 Engine
Stage of operation
CL
How discovered
V
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

ENG1 FIRE LIGHT ILLUMINA TED THEN EXTINGUISHED. FOUND 3 OUT OF THE 4 CORE ELEMENTS CHECKING BAD. REMOVED AND REP LACED L/H AND R/H CORE ASSY WHICH CONTAIN BOTH A&B ELEMENTS. ALSO FOUND B LOOP CORE HARNESS OPEN. REMOVED AND REPLACED B LOOP CO RE HARNESS. OPS CHKS GOOD. ROTABLE PARTS CHANGE WAS INDICATED - TT # 1922315 SN OFF 4278 TT # 1808570 SN OFF 4286 DETECTOR, FIRE, OFF 29-2611-9-0004 4278 ON 29-2611-9-0004 6592 DETECTOR, FIRE, OFF 29-2611-9-0003 4286 ON 29-2611-9-0003 2118