Service difficulty report · Unknown · Boeing 737990ER

Difficulty date
August 7, 2023
Submitted
August 11, 2023
Operation
Air carrier
Aircraft
N464AS
Make and model
Boeing 737990ER
Aircraft serial
40714
Aircraft time
35,125 hours, 10,877 cycles
Part
Unknown
Part number
UNKNOWN
Condition
Unknown
Location
Unknown
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

AFT CARGO FIRE LIGHT DOESN'T ILLUMINATE DURING TEST. GROUNDED - YES. (RESOLVED ON W/O: 1964547 TASKCARD: N/R-00001 ) VERIFIEID DEFECT. PERFORMED CARGO SMOKE DET OPS TEST IAW AMM 26-16-00-710-801. AFT DOES NOT ILLUMINATE ON LOOP B. PERFORMED CARGO SMOKE DET BITE IAW FIM 26-16 TASK 801. FAILS B1. PULLED 1 CB. AT B1, DISCOVERED WIRES AT D13846 SMK DET ENCLOSURE BRACKET TO BE SEVERED AND/OR CRUSHED. REF WDM 26-16-22-3. REMOVED SMOKE DET ENCLOSURE BRACKET ASSY. RE-TERMINATED ALL 5 CONTACTS FOR D13846 AT B1 M2245 IAW SWPM 20-61-11. REINSTALLED BRACKET ASSY REF AIPC 26-16-01-13, ITEM 200. RESET 1 CB. NOW PASSES OPS TEST AND BITE TEST FOR ALL POSITIONS. PLACARDS REMOVED. NO A/C CONFIG CHANGES. SEAMC JOE NOTFIEID. THIS CLEARS MEL 26-19H.