SDR ERAA092653

Service difficulty report · Bushing · Bolkms BO105S

Difficulty date: December 29, 2003
Submitted: February 17, 2004
Operation: Air carrier
Aircraft: N152EH
Make and model: Bolkms BO105S
Aircraft serial: S701
Aircraft time: 13,949 hours
Engine: Allsn 250C20
System (JASC): 6420 · Tail Rotor Head
Part: Bushing
Condition: Misinstalled
Location: Tail Rotor Head
Part time: 10,760 hours
Component: Head
Component part number: 10531714
Stage of operation: IN
How discovered: V
Nature of condition: W
Precautionary procedure: K

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

What was found

UNABLE TO ADJUST FOR PEDAL FORCE. TEFLON ON GRIP BUSHINGS FLAKING. COMPLY PREINSPECTION AND NOTED NO DEFECTS. DISASSEMBLED AS FAR AS NECESSARY FOR REPAIR. VISUALLY NOTED TEFLON FLAKING ON GRIP BUSHING. POSSIBLE CAUSE OF ABOVE DISCREPANCY. NO OTHER DISCREPANCIES FOUND. INSTALLED NEW GRIP BUSHINGS, AND SEALS, C/W SLIDING FRICTION FORCE TEST, AND BREAK AWAY FORCE TEST. REASSEMBLED WITH ORIGINAL HARDWARE, BLADES AND STATIC BALANCED. REPAIRED IAW REM 301, MM CHAPTER 33.34 AND 107 TT 10760.1 TSI 60.3.