Service difficulty report · Ground Stud · Cessna 525C

Difficulty date
January 9, 2026
Submitted
January 9, 2026
Operation
General aviation
Aircraft
N67DZ
Make and model
Cessna 525C
Aircraft serial
0474
Aircraft time
92 hours, 85 cycles
Part
Ground Stud
Part number
GTDS27
Condition
Loose
Location
Generator
Part time
92 hours, 85 cycles
Stage of operation
IN
How discovered
V
Nature of condition
J
Precautionary procedure
K

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

What was found

RIGHT GENERATOR TAKES 100% OF THE LOAD ONCE IN CRUISE. IF CUSTOMER TURNS OFF THE RT GENERATOR IN FLT, THE LT GENERATOR TAKES THE LOAD WITH NO ISSUES. IF HE TURNS THE RT GEN BACK ONLINE, IT PARALLELS, THEN EVENTUALLY BACK TO THE 100% AMP SPLIT WITH THE RT GENERATOR TAKING THE FULL LOAD. INSPECTED FOR SECURITY AND CONDITION, NO DEFECTS FOUND. LT STARTER GENERATOR GROUND STUD GTDS27 AND FOUND THAT THE TERMINAL WAS LOOSE WITH WIGGLE ROOM ON THE GROUND STUD. REMOVED STUD AND FOUND A LAYER OF SEALANT AROUND THE BOLT, WASHERS, AND NUT. CLEANED AND RE-INSTALLED THE TERMINAL TO THE GROUND STUD ENSURING IT IS PROPERLY SECURED. PERFORMED BONDING CHECK OF THE GND STUD AND FOUND READING WITHIN LIMITS AT 0.2 MOHMS. RAN AIRCRAFT ENGINES AND PERFORMED SUCCESSFUL GENERATOR CONTROL UNIT OPERATIONAL CHECK. ALL WORK PERFORMED IAW SPM 20-30-10, WDM 24-30-01-06, AND AMM 24-31-40.

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