Service difficulty report · Control Valve · Cessna 680SOV

Difficulty date
March 29, 2025
Submitted
April 1, 2025
Operation
Air carrier
Aircraft
N341QS
Make and model
Cessna 680SOV
Aircraft serial
6800225
Aircraft time
14,107 hours, 9,265 cycles
Part
Control Valve
Condition
Leaking
Location
Mlg
Stage of operation
TX
How discovered
O
Nature of condition
K, B
Precautionary procedure
O

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

What was found

AFTER A NORMAL LANDING IN HOU, A LINEMAN NOTICED OUR RIGHT MLG TRUCK SMOKING WITH A VERY DISTINCT CRACKLING SOUND (ALMOST THE SOUND OF A WOOD LOG BURNING IN A FIRE). THERE WAS ALSO THE SMELL OF BURNING HYDRAULIC FLUID. AFTER ,PERFORMED DETAILED INSPECTION OF R/H MLG TRUCK(#3& #4WHEEL/TIREASSY.) INCLUDING THE FLUID LINES& ASSOCIATED GEAR CONTROL VALVES FOR DAMAGE/FLUID LEAKS. NO FLUID LEAKS, OR OBVIOUS DEFECTS WERE FOUND. PER CUSTOMER REQUEST, REMOVED & REPLACED THE R/H OTBD (#4) BRAKE ASSEMBLY & (#4) WHEEL HUB& TIRE ASSEMBLY, USING SERVICEABLE HARDWARE.REF.CE-680MM 32-10-10,32-42-10& 32-41-20 FOR MX PERFORMED. BRAKE ASSY P/N & S/N REMOVED: 2-1675-1(9914655-3) & 0230A BRAKE ASSY P/N & S/N INSTALLED:2-1675-1(9914655-3) & D1366P W HEEL-HUB& TIRE ASSYP/N & S/N REMOVED:6941060-1& 2024 WHEEL-HUB& TIRE ASSYP/N & S/N INSTALLED:6941060-1& 0494