Service difficulty report · Transmitter · Boeing 74744AF

Difficulty date
July 21, 2020
Submitted
July 22, 2020
Operation
Air carrier
Aircraft
N577UP
Make and model
Boeing 74744AF
Aircraft serial
35666
Aircraft time
44,489 hours, 6,615 cycles
Part
Transmitter
Condition
False Activation
Location
Hydraulic System
Stage of operation
CR
How discovered
O
Nature of condition
N
Precautionary procedure
O

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

What was found

EMERGENCY DECLARED DURING CRUISE FLT HYD QTY DROPPED TO 16 % AFTER ACCOMPLISHING QRH ITEMS AFTER TURNING ON PUMPS IAW CHECKLIST, QTY RETURNED TO NORMAL. REPLACED HYD QUANTITY TRANSMITTER IAW AMM 29-33-01-004-001. OPS CKS NORMAL.

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