SDR JYD2004F00001

Service difficulty report · Rotor Head · Skrsky S64E

Difficulty date: January 22, 2004
Submitted: February 4, 2004
Operation: Air carrier
Make and model: Skrsky S64E
Aircraft serial: 64065
System (JASC): 6420 · Tail Rotor Head
Part: Rotor Head
Part number: 6516100010041
Condition: Cracked
Location: Tail Rotor
Part time: 42,069 hours
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 NORMAL AC INSPECTION, THE FOLLOWING WAS FOUND; THE OB SIDE OF THE POCKET HAS 3 CRACKS RUNNING SPANWISE APPROXIMATELY .398 INCH FROM THE TRAILING EDGE. THE FIRST CRACK IS 7.5 INCH FROM THE TIP END AND .835 INCH LONG. THE SECOND CRACK IS 9 INCHES FROM THE TIP END AND .705 INCHES LONG. THE THIRD CRACK IS 11.875 INCHES FROM THE TIP END AND .684 INCH LONG. PROBABLE CAUSE IS UNKNOWN. THE RECOMMENDATION TO PREVENT RECURRENCE IS NOT KNOWN. (MDR04-041)