Service difficulty report · Gcu · Boeing 7378H4

Difficulty date
May 28, 2026
Submitted
June 2, 2026
Operation
Air carrier
Aircraft
N8518R
Make and model
Boeing 7378H4
Aircraft serial
63593
Aircraft time
31,011 hours, 15,543 cycles
Part
Gcu
Condition
Faulted
Location
Apu
Stage of operation
DE
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

DURING DESCENT AUTOPILOT DISCONNECTED NR 2 SOURCE OFF LIGHT ILLUMINATED FOLLOWED QRH DEFAULT DESCRIPTION. R & R APU GCU IAW AMM 24-21-81. OPS CHECKED GOOD

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