SDR JBZA2010F00100

Service difficulty report · Disc · Urocop EC135P2

Difficulty date: April 20, 2010
Submitted: May 4, 2010
Operation: Air carrier
Aircraft: N38RX
Make and model: Urocop EC135P2
Aircraft serial: 0749
Aircraft time: 941 hours
Engine: Pwa PW206B2
System (JASC): 6321 · Main Rotor Brake
Part: Disc
Part number: L635M1025210
Condition: Cracked
Location: Rotor Brake
Part time: 941 hours
Stage of operation: IN
How discovered: V
Nature of condition: E
Precautionary procedure: K

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

What was found

PILOT REPORTED "ROTOR BRAKE CHATTER DURING USE". MECHANIC FOUND ROTOR BRAKE DISK HAD (2) CRACKS, ONE 1.1250" LONG, ONE 1 14" LONG, LOCATED ROUGHLY 180 DEGREES APART, BOTH CRACKS EMANATING OUTWARD TO THE EDGE OF THE DISK. INSTALLED NEW BRAKE ROTOR DISK. FAILED COMPONENT SENT FOR ANALYSIS.

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