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SDR CA090529006

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Service difficulty report · Housing · Skrsky S76C

FAA SDR system

Difficulty date
May 29, 2009
Submitted
June 16, 2009
Operation
General aviation
Make and model
Skrsky S76C
Aircraft time
254 hours
Engine
Tmeca ARRIEL2S1
System (JASC)
6320 · Main Rotor Gearbox
Part
Housing
Part number
7635109002053
Condition
Damaged
Location
M/R Gearbox
Part time
3,226 hours
Component
Gearbox · Skrsky
Component part number
7635109002
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

(CAN) MGB UPPER HOUSING BEARING SUPPORT STUDS MISSING LOCK RINGS. MAIN GEAR BOX PN 76351-09600-044, SN A231-00295 DISASSEMBLED FOR OVERHAUL AT 3226:35 TSN. UPPER HSG (PN 76351-09002-053, SN A001-00566) DISSASEMBLED AND FOUND BEARING SUPPORT ATTACHMENT STUDS (PN SFJ111-13TA11AE0301) TO BE MISSING 8 LOCK RINGS (PN MS51990-105P). MFG FIELD REPRESENTATIVE CONTACTED TO REVIEW THE MGB UPPER HOUSING FOUND WITH THE 8 STUD LOCK RINGS MISSING. AWAITING DIRECTION ON ACCEPTABLE ACTIONS TO TAKE.