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SDR ERAA074828

Open the Markdown

Service difficulty report · Gearbox · Bolkms BO105S

FAA SDR system

Difficulty date
July 20, 2001
Submitted
August 13, 2001
Operation
General aviation
Aircraft
N134EH
Make and model
Bolkms BO105S
Aircraft serial
635
Aircraft time
10,999 hours
System (JASC)
6520 · Tail Rotor Gearbox
Part
Gearbox
Part number
4619002003
Part serial
1295
Condition
Damaged
Location
Tail Rotor
Part time
2,837 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

BEARINGS SCORED AND INPUT BUSHING FRETTING. DISASSEMBLED, VISUALLY INSPECTED. REPLACED ALL FIVE BEARINGS, INPUT BUSHING, ALL O RINGS, ALL SEALING RINGS, BOTH SEALS, ONE SCREW AND THE LOCKING PLATE. REASSEMBLED, SET GEAR DISTANCE, BACKLASH & PATTERN PRO-SEALED. REPAIRED IAW BO-105 REM-304. COMPLIED WITH ASB BO-105-30-111. COPY SENT TO AMERICAN EUROCOPTER CORP.