Service difficulty report · Tensioner · Urocop EC130B4

Difficulty date
May 12, 2008
Submitted
July 18, 2008
Operation
Air carrier
Aircraft
N815MH
Make and model
Urocop EC130B4
Aircraft serial
4022
Engine
Tmeca ARRIEL2B1
Part
Tensioner
Part number
5300273
Condition
Cracked
Location
A/C Compressor
Part time
2,209 hours
Component
Compressor
Component part number
EC130B4
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

DURING ROUTINE MAINT (1) OF (2) BELT TENSIONING ARMS FOUND CRACKED IN (2) PIECES. FAILURE ORIGINATED AT WELDMENT. SEVERAL HAVE FAILED IN THIS MANNER. SUGGEST POST WELD, HEAT TREATMENT TO RELIEVE WELD STRESS. (K)

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