Service difficulty report · Pressure Switch · Boeing 7673Y0

Difficulty date
April 3, 2021
Submitted
April 5, 2021
Operation
Air carrier
Aircraft
N642GT
Make and model
Boeing 7673Y0
Aircraft serial
26207
Aircraft time
81,262 hours, 22,498 cycles
Part
Pressure Switch
Condition
Malfunctioned
Location
Fire Bottle
Stage of operation
TX
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

" CARGO BTL 2" EICAS MSG(<P>TRANSFER TO MDDR 144785 IAW MEL 26-23-01-01 CAT "C" DUE DATE 13 APR 21</P><P>04 APR 21-LP 1329329 ITEM 10-CVG- PERFORMED FIM 26-23 FAULT TREE 813 BLOCK 1. NO DEFECTS NOTED. PERFORMED OPS CHECK OF THE #2 BTL PRESSURE SWITCH IAW AMM 26-23-00. OPS CHECK GOOD. DMI #144785 REMAINS.</P><P>04 APR 21 - LP 1329330 - ITEM 13 CVG - REMOVED AND REINSTALLED CARGO FIRE EXT BOTTLES 2 AND 2A IAW AMM 26-23-02 IN ORDER TO PERFORM WEIGHT CHECK OF BOTH BOTTLES IAW AMM 26-23-02. BOTH BOTTLES WEIGHT CHECKS OK. ALSO PERFORM CARGO 2 AND 2A BOTTLES PRESS SW CHECK IAW AMM 26-23-00. CHECKS OK. NO FAULTS PRESENT AT THIS TIME. DMI 144785 OK TO CLEAR MEL AND PLACARDS REMOVED. </P>)

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