SDR 95ZZZX3284

Service difficulty report · Valve Rod · Bbavia 7GC

Difficulty date: June 1, 1995
Submitted: March 26, 2000
Operation: General aviation
Aircraft: N4871E
Make and model: Bbavia 7GC
Aircraft serial: 7GC76
System (JASC): 2823 · Fuel Selector/Shut-Off Valve
Part: Valve Rod
Condition: Broken
Location: Fuel Shutoff
Stage of operation: IN
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

FUEL SHUT OFF EXTENSION ROD UNIVERSAL JOINT SEPARATED WHILE TURNING FUEL ON. SUSPECT INADEQUATE STRENGTH. HAVE INSPECTED SEVERAL AIRCRAFT AND FOUND THESE UNIVERSAL JOINTS BADLY WORN AND WILL NOT ALLOW FULL RANGE OPERATION OF FUEL SHUTOFF VALVE. SUBMITTER RECOMMENDS REDESIGN OF UNIVERSAL JOINTS AND INSPECT FULL RANGE OPERATION OF VALVE.