SDR ERAA082705

Service difficulty report · Transmission · Bolkms BO105S

Difficulty date
November 15, 2002
Submitted
December 30, 2002
Operation
Air carrier
Aircraft
N152EH
Make and model
Bolkms BO105S
Aircraft serial
S701
Aircraft time
13,436 hours
Part
Transmission
Part number
4638001007
Part serial
813
Condition
Making Metal
Location
Main Rotor
Part time
12,902 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

TRANSMISSION MAKING METAL. MAST BEARING INNER RACE BREAKING DOWN, MIXING LEVER BEARINGS FROZE UP, BEARING BLOCK BEARINGS ROUGH, ACCESS. DRIVE SEALS LEAKING, TOP CASE BEARING PITTED, SWASHPLATE BOOT TORN, COLLECTIVE LEVER BEARINGS ROUGH. REMOVED TOP CASE ASSY, FOUND MAST BEARING BREAKING DOWN, INSTALLED NEW MAST BEARINGS, MAST SEAL, REASSEMBLED & REINSTALLED LT & RT INPUTS, COMPLIED WITH AD 97.26-02, ASB BO-105-10-110, ASB BO-105-40-103. REASSEMBLED IAW REM 103. COMPLIED WITH AD97-26-02, ASB BO-105-10-110, ASB BO-105-40-103.