SDR UIEA2022080500815

Service difficulty report · Pressure System · Boeing 74747UF

Difficulty date: August 4, 2022
Submitted: August 8, 2022
Operation: Air carrier
Aircraft: N492MC
Make and model: Boeing 74747UF
Aircraft serial: 29253
Aircraft time: 99,442 hours, 17,104 cycles
System (JASC): 2911 · Hydraulic Power Accumulator, Main
Part: Pressure System
Part number: 60B0025435
Part serial: NSN
Condition: Low Pressure
Stage of operation: CL
How discovered: O
Nature of condition: K
Precautionary procedure: A, J

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

What was found

AFTER T/O "HYD QTY 1" EICAS MSG, SHORTLY AFTER "HYD SYS 1"(<P>FOUND #1 ADP PRESSURE HOSE LEAKING. R/R #1 ADP PRESSURE HOSE PER AMM 20-11-18. PERFORMED LEAK CHECK, NO LEAKS NOTED PER AMM 29-11-17. SERVICED HYD SYS #1 PER AMM 12-12-01.</P>)

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