Service difficulty report · Crank Assy · Pilats PC1245

Difficulty date
May 15, 2015
Submitted
August 5, 2015
Operation
General aviation
Make and model
Pilats PC1245
Aircraft time
21,767 hours
Engine
Pwa PT6A67B
Part
Crank Assy
Part number
5521012114
Condition
Corroded
Location
Pax Door
Part time
22,462 hours
Component
Pax Door · Pilats · 5520512001
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) AS A RESULT OF CONDUCTING SB 52-007 INSPECTION OF PAX DOOR SHOOT BLOCKS FOR CORROSION & RESULTING REPLACEMENT OF CORRODED SHOOT BOLT BLOCKS, THE DOOR OPERATING MECHANISM WAS DISASSEMBLED TO PERMIT REPAIRS. FOLLOWING DISASSEMBLY IT WAS NOTED THAT THE UPPER CRANK ASSEMBLY WAS HEAVILY CORRODED AT THE ROD ATTACHMENT ARM ON CRANK PN 552 10 12 114. THE CRANK WAS R & R WITH NEW. DUE TO THE POSITION OF THE CRANK ASSEMBLY WHEN INSTALLED IN THE DOOR THE CORROSION WAS NOT READILY VISIBLE IN PLACE WITHOUT THE USE OF AN INSPECTION MIRROR & LIGHT.