Service difficulty report · Smoke Detector · Boeing 76737D

Difficulty date
November 13, 2019
Submitted
November 19, 2019
Operation
Air carrier
Aircraft
N1327A
Make and model
Boeing 76737D
Aircraft serial
26328
Aircraft time
84,856 hours, 12,607 cycles
Part
Smoke Detector
Condition
False Activation
Location
Cargo Bay
Stage of operation
IN
How discovered
9
Nature of condition
N
Precautionary procedure
K

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

What was found

CARGO DET AIR ON EICAS DISPLAY.(<P>TRANSFERRED TO MDDR 120587 IAW MEL 26-14-01, CAT 'C', DUE DATE 24-NOV-19.</P><P>LP 1107211 - M8: REMOVED AND REPLACED PRESSURE SWITCH S454 IAW AMM 26-16-03, NO HELP. OFF PART (PN: 32V92, SN: 3051) PER FIM 26-16 FT 814, SUSPECT FORWARD SMOKE DET BLOWERS 1 & 2. PLACED PART ON ORDER WITH MCC, P/N 033638. DMI 120587 REMAINS OPEN.</P><P>LP 1107215 - M3: PERFORMED OPERATIONAL TEST OF THE CARGO COMPARTMENT SMOKE DETECTION SYSTEM IAW AMM 26-19-00. WITH THE APU ON AND SUPPLIED PNEUMATIC PRESSURE, THE MESSAGE "CARGO DET AIR" GOES AWAY ON EICAS. OPS CHECK NORMAL, DMI 120587 REMAINS OPEN. </P><P>LP 1107217 - ITEM 1: PERFORMED FIM TASK 26-16 FAULT TREE 814, SYSTEM NORMAL. THIS CLEARS MEL 26-14-01, DMI #120587. PLACARD REMOVED AND MCC NOTIFIED. </P>)

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