Service difficulty report · Brake Assy · Piagio P180

Difficulty date
May 31, 2017
Submitted
May 31, 2017
Operation
General aviation
Aircraft
N61WC
Make and model
Piagio P180
Aircraft serial
3001
Aircraft time
164 hours, 149 cycles
System (JASC)
3242 · Brake
Part
Brake Assy
Part number
215045
Part serial
1011
Condition
Binding
Location
Zone 700
Part time
164 hours, 149 cycles
Stage of operation
LD
How discovered
C
Nature of condition
M
Precautionary procedure
O

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

What was found

AIRCRAFT HAD THE LEFT WHEEL GO FLAT AFTER LANDING ROLLOUT. THIS IS THE SECOND TIME THAT IT HAS HAPPENED IN THE LAST TWO WEEKS. UPON INSPECTION OF THE WHEEL, IT WAS NOTICED THAT THE THERMAL FUESES WERE OPEN. AFTER CONSULTATION WITH THE AIRCRAFT MANUFACTURER, A DRAGGING BRAKE STACK WAS TO BLAME FOR THE HIGH HEAT. PIAGGIO HAS A SECTION IN THE MAINTENANCE MANUAL TO CHECK THE DRAG OF THE BRAKE STACK AND IT FAILED THE DRAG CHECK. IT WAS ALSO NOTED THAT THE PAINT ON THE BRAKE ASSY WAS DISCOLORED COMPARED TO THE RH BRAKE, DUE TO EXCESSIVE HEAT. A THE AIRCRAFT WILL BE RETURNED TO SERVICE WHEN THE NEW BRAKE ASSY IS INSTALLED, BRAKE DRAG CHECK IS PERFORMED AND THE OVERHAULED WHEEL IS RETURNED.