Service difficulty report · Rod · Bombdr BD7001A10

Difficulty date
July 2, 2015
Submitted
April 22, 2016
Operation
General aviation
Make and model
Bombdr BD7001A10
Aircraft time
8 hours
Engine
Rroyce BR700710A220
Part
Rod
Part number
275561
Condition
Fractured
Location
Hydraulic Pump
Stage of operation
NR
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

(CAN) QTY 2 THREADED RODS IN THE OTBD SHOCK MOUNTS OF AC MOTOR PUMP WERE FOUND FRACTURED. AN INITIAL MFG MATERIAL ANALYSIS INDICATES THE RODS HAVE FAILED DUE TO HYDROGEN EMBRITTLEMENT. THE CONDITION IS STILL UNDER HYDRAULIC SYSTEMS DIVISION INVESTIGATION. ALL AFFECTED ACFT`S WITHIN MFG FACILITY ARE BEING CURRENTLY INSPECTED & THE SUSPECT PINS REMOVED FROM SHOCK MOUNT. TOTAL NR OF SUSPECT ACFT IS 61. TRIAGE IS IN WORK TO ASSESS THE CRITICALITY OF THE FAILURE.