Narrative:

We accepted aircraft in ZZZ at XA12 local for a 5 leg day trip. The original block time was 7:51 for this particular day trip. Aircraft was rudder limited and had arrived the previous evening in ZZZ with this deferred item. Upon accepting the aircraft; the first officer and I did the rudder test and verified the proper MEL items were followed; but it never occurred to me to call scheduling to determine if our block times had been changed to reflect this rudder limited aircraft. As it turned out; we had kept this aircraft all day for the 5 legs and during the last leg the first officer brought up a passage in the pom about rudder limited aircraft and the fact scheduling needs to change block time for rudder limited aircraft and we had a revelation that perhaps I should have called about this earlier in the day. I suppose informing crews of the passage in the pom in recurrent or initial ground schools might help and adding a passage in the MEL-cdl book that directs crew to the passage in the pom (operations manual) reflecting the change in block time that needs to be done by crew scheduling.

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Original NASA ASRS Text

Title: A SAAB 340 CREW FAILED TO CHECK BLOCK TIME FOR A FIVE LEG DAY THAT MAY EXCEED EIGHT BLOCK HOURS BECAUSE OF THE ACFT'S RUDDER LIMITED CONDITION.

Narrative: WE ACCEPTED ACFT IN ZZZ AT XA12 LCL FOR A 5 LEG DAY TRIP. THE ORIGINAL BLOCK TIME WAS 7:51 FOR THIS PARTICULAR DAY TRIP. ACFT WAS RUDDER LIMITED AND HAD ARRIVED THE PREVIOUS EVENING IN ZZZ WITH THIS DEFERRED ITEM. UPON ACCEPTING THE ACFT; THE FO AND I DID THE RUDDER TEST AND VERIFIED THE PROPER MEL ITEMS WERE FOLLOWED; BUT IT NEVER OCCURRED TO ME TO CALL SCHEDULING TO DETERMINE IF OUR BLOCK TIMES HAD BEEN CHANGED TO REFLECT THIS RUDDER LIMITED ACFT. AS IT TURNED OUT; WE HAD KEPT THIS ACFT ALL DAY FOR THE 5 LEGS AND DURING THE LAST LEG THE FO BROUGHT UP A PASSAGE IN THE POM ABOUT RUDDER LIMITED ACFT AND THE FACT SCHEDULING NEEDS TO CHANGE BLOCK TIME FOR RUDDER LIMITED ACFT AND WE HAD A REVELATION THAT PERHAPS I SHOULD HAVE CALLED ABOUT THIS EARLIER IN THE DAY. I SUPPOSE INFORMING CREWS OF THE PASSAGE IN THE POM IN RECURRENT OR INITIAL GND SCHOOLS MIGHT HELP AND ADDING A PASSAGE IN THE MEL-CDL BOOK THAT DIRECTS CREW TO THE PASSAGE IN THE POM (OPS MANUAL) REFLECTING THE CHANGE IN BLOCK TIME THAT NEEDS TO BE DONE BY CREW SCHEDULING.

Data retrieved from NASA's ASRS site as of May 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.