Service difficulty report · Control Cable · Stbros SD3*

Difficulty date
August 31, 2025
Submitted
January 7, 2026
Operation
Air carrier
Aircraft
N725WW
Make and model
Stbros SD3*
Aircraft serial
SH3205
Aircraft time
11,700 hours, 11,946 cycles
Engine
Pwa PT6A65AR
Engine time
8,855 hours
Propeller
Hartzl HCB5MP3
Part
Control Cable
Part number
A552318
Condition
Chafed
Location
Fcu
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

DURING INSPECTIONS WE HAVE DISCOVERED A TREND WHERE THE TELEFLEX CABLES THAT CONNECT TO THE FCU POWER CONTROL ARE SHOWING SIGNS OF WEAR CAUSED BY CHAFING AGAINST THE ENGINE LOWER COWLING. THE MOST SEVERE EXAMPLES OF THIS WERE ON SERIAL NUMBERS SH3205, SH3415, SH3416 WIN AVIATION HAS ADJUSTED THE ROUTING OF THE CABLES SUCH THAT THEY CLEAR LOWER COWL ASSEMBLY, AND HAVE IMPLEMENTED A 90 DAY INSPECTION ON ALL ITS SHERPAS, TO MONITOR THE CONDITION OF THE AFFECTED AREAS OF THE CABLES.