Service difficulty report · Relay · Boeing 7673Y0

Difficulty date
January 12, 2021
Submitted
January 20, 2021
Operation
Air carrier
Aircraft
N1181A
Make and model
Boeing 7673Y0
Aircraft serial
26206
Aircraft time
89,226 hours, 22,435 cycles
Part
Relay
Condition
Malfunctioned
Location
Equip Fan
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

FWD EQ SUP FAN STATUS MSG(<P>PLACED ON MEL 21-58-04-02-01 CAT "C" DUE DATE 23JAN21. TRANSFERRED TO MDDR# 140831.</P><P>13JAN21 / 1259294 / ITEM 4 / ONT - PERF FIM 21-58 F/T 904 FWD EQP SUP FAN, SWAPPED ECS CONTROL CARD M861 WITH ECS CONTROL CARD M862. STATUS MSG DOES NOT REMAIN. SWAPPED ORG CARDS BACK. PLACED P/N 285T0078-15 ON ORDER. M861 CARD ECS FAN DMI REMAINS OPEN.</P><P>1/17/2021 - LP 1311970 ITEM 5 - BWI: REMOVED AND REPLACED RELAY K343 WDM 21-58-14.OPS TEST GOOD. THIS CLEARS MDDR 140831. PLACARD REMOVED.</P><P><BR /></P>)

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