SDR 97ZZZX3197

Service difficulty report · Screw · Snias AS350B2

Difficulty date
July 1, 1997
Submitted
March 26, 2000
Operation
General aviation
Aircraft
N4035W
Make and model
Snias AS350B2
Aircraft serial
2912
Part
Screw
Part number
22208BC060012L
Condition
Defective
Location
T/R Drive Shaft
Part time
400 hours
Stage of operation
IN
Nature of condition
W
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING C/W SB 05.08 PARA 1C(2A) WHEN REINSTALLING SCREW INTO BEARING SUPPORT MOUNT BRACKET, MECHANIC STATED THAT TORQUE DID NOT FEEL STABLE. REMOVED AND INSPECTED, FOUND NO OBVIOUS DEFECTS. REINSTALLED TORQUED NUT AND, AGAIN, DID NOT FEEL LIKE TORQUE STABILIZED. ATTEMPTED TO TORQUE TO MAXIMUM, TORQUE BOLT FAILED. EUROCOPTER AS350B2 PARTS MANUAL, SCREW, PN 22208BC060012C, ITEM 230, FIGURE 65.10.10, PG 3.