Service difficulty report · Connector · Boeing 737990ER

Difficulty date
November 12, 2019
Submitted
November 19, 2019
Operation
Air carrier
Aircraft
N459AS
Make and model
Boeing 737990ER
Aircraft serial
36352
Aircraft time
22,693 hours, 7,332 cycles
Part
Connector
Condition
Damaged
Location
Fire Detector
Stage of operation
NR
How discovered
O
Nature of condition
N
Precautionary procedure
O

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

What was found

ON THE CARGO FIRE DETECTION PANEL, THE RED FWD LIGHT ON THE FWD SQUIB ARM BUTTON DOES NOT COME ON DURING THE SYSTEM TEST. GROUNDED - YES. PERFORMED CARGO ELECTRONIC UNIT (CEU) BITE CHECK REF FIM 26-16 TASK 801 DETECTOR A1 FAULT FOUND. INSPECTED D13844 CONNECTOR ON A1 FORWARD SMOKE DETECTOR (M2238) REF WDM 26-16-21-4. FOUND PIN #11 (ALARM) PUSHED BACK ON CONNECTOR, PUSHED PIN 11 NO DEFECTS NOTED ON LOCKING MECHANISM. CEU BITE CHECK PASS. PERFORMED CARGO FIRE CONTROL PANEL BITE CHECK REF FIM 26-23 TASK 801 OPS CHECK GOOD NO DEFECTS NOTED BOTH LOOP A AND B PASS.