Service difficulty report · Pressure Switch · Boeing 74787UF

Difficulty date
November 15, 2022
Submitted
November 16, 2022
Operation
Air carrier
Aircraft
N850GT
Make and model
Boeing 74787UF
Aircraft serial
37570
Aircraft time
42,413 hours, 8,158 cycles
Part
Pressure Switch
Part number
211C223659
Part serial
M022543C
Condition
Faulted
Location
Hyd System
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

FLT CONTROL SYS-STATUS MSG REPEAT WRITE-UP PREVIOUS FLIGHT PAGE 1680476. MSG APPEARD DURING CRUISE AT FL320. INFO ONLY HYD #2 QTY 11.4 MSG BLANKED WITH BREAKES SET AFTER BLOCK IN AT ICN.(<P>COMPLIED WITH FIM 27-09-00-810-878 AND PERFORMED ALL WIRING CHECKS. FOUND EDP PRESSURE WITH PIN 1 & 2 WAS NOT CLOSED IAW WDM 29-34-12. REPLACED S6 EDP PRESSURE WITCH AND OPS CHECK GOOD. </P>)

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