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Prop failed to pitch lock: C-130B AC


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Hey....hery world. I have a problem with One of our new, OH prop ( No 2 posn)which is fail to pitch lock. Synchrophaser operation ck, slave follow both 2 and 3 master, RPM goes upto 104.5% fuel flow also 1400-1350 but rpm does not reduce like no 3 prop which is pitch lock SAT with the throttle movement with check switch is actuated. Low pitch stop adjusted, pitch lock regulator replaced, no joy. TD controlling unsat. Any suggestion.  

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  • 5 weeks later...
On 9/18/2020 at 6:14 PM, Badiul Alam said:

Hey....hery world. I have a problem with One of our new, OH prop ( No 2 posn)which is fail to pitch lock. Synchrophaser operation ck, slave follow both 2 and 3 master, RPM goes upto 104.5% fuel flow also 1400-1350 but rpm does not reduce like no 3 prop which is pitch lock SAT with the throttle movement with check switch is actuated. Low pitch stop adjusted, pitch lock regulator replaced, no joy. TD controlling unsat. Any suggestion.  

Replace  the  FCU

Munir Abbasi

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