Service difficulty report · Electronic Unit · Boeing 737890

Difficulty date
January 16, 2019
Submitted
January 23, 2019
Operation
Air carrier
Aircraft
N563AS
Make and model
Boeing 737890
Aircraft serial
35180
Aircraft time
46,179 hours, 13,848 cycles
Part
Electronic Unit
Part number
473925
Condition
Failed
Location
Cargo Bay
Stage of operation
IN
How discovered
C
Nature of condition
L
Precautionary procedure
K

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

What was found

CARGO SMOKE/FIRE DETECTION AFT LOOP "A" WILL NOT TEST. GROUNDED - YES. DUE TO HISTORY, REMOVED AND REPLACED AFT CARGO CEU. OPS TEST GOOD. REF AMM 26-16-02. AFT CARGO DETECTOR SWITCH TO NORMAL POSITION.