SDR ERAA082706

Service difficulty report · Transmission · Bolkms BO105C

Difficulty date: November 15, 2002
Submitted: December 30, 2002
Operation: Air carrier
Make and model: Bolkms BO105C
System (JASC): 6320 · Main Rotor Gearbox
Part: Transmission
Part number: 4638001001
Part serial: 1195
Condition: Making Metal
Location: Main Rotor
Part time: 4,046 hours
Stage of operation: IN
How discovered: C
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

TRANSMISSION MAKING METAL. OIL MANIFOLD, TEMP PLUG & SWASHPLATE DRIVE LINK BUSHING NOT INSTALLED ON TRANSMISSION. PLANETARY AXLE BREAKING DOWN. SCRAPPED 1 GEAR, 5 PLANETARY AXLES, 5 DOUBLE ROW CAGES. REMOVED TOP CASE, LT & RT INPUT PINIONS & PLANETARY, DISASSEMBLED LT & RT PINIONS & PLANETARY. REPAIRED PLANETARY, REASSEMBLED PLANETARY & PINION ASSYS, REASSEMBLED & REINSTALLED IAW REM 103.