Service difficulty report · Bellcrank · Cessna 206H

Difficulty date
July 1, 2005
Submitted
July 25, 2005
Operation
General aviation
Aircraft
N239LF
Make and model
Cessna 206H
Aircraft serial
20608239
Engine
Lyc IO540*
Part
Bellcrank
Condition
Binding
Location
Te Flaps
Part time
5 hours
Stage of operation
NR
How discovered
9
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

BINDING IN FLAP DR SYS AT BELLCRANKS WHERE ROD ENDS ATTACH. FLAP DR RODENDS WERE FOUND DIGGING INTO BELLCRANK ARMS AS THEY OPERATED, NML TRAVEL AS SHOWN BY RUB MARKS ON RODENDS. BELLCRANK ARMS, EXCESS CLAMPED BY RODEND ATTACH BOLTS, SOME BOLTS NOT TIGHTENED SECURELY LEAVING ROD END TO MOVE UP AND DOWN ON BOLT SHANK. WASHERS WERE INSTALLED BETWEEN RODEND BRG, BELLCRANK TO RELIEVE CLAMPING STRAIN ON ARMS, PROVIDE CLEARANCE FOR RODENDS TO OPERATE W/O BINDING ON ARMS. INTERCONNECT RODENDS WERE FOUND BINDING AT END OF TRAVEL IN DWN POSITION. BELLCRANK ANGLE DURING RIGGING, ADJUSTING RIGGING TO CLOCK BELLCRANK TRAVEL INTO USEABLE ARC THAT PREVENTS BINDING AT ENDS OF ITS RANGE WILL HELP PREVENT FURTHER DAMAGE. (K)

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