ALT DEVIATION.

Narrative

WE WERE INBND TO PIT FROM HAGERSTOWN; MD. THE CAPT WAS FLYING AND I WAS RUNNING THE RADIOS. OUR CRUISING ALT HAD BEEN 8000' WHEN ABOUT 30 DME FROM AGC VOR CLE CENTER DSNDED US TO 7000'. THE CAPT ASKED ME TO REQUEST 6000'. WE WERE PASSING THROUGH 7500' WHEN CLE CENTER SWITCHED US TO PIT APCH AND TO GIVE THEM THE REQUEST. APCH SAID THEY WOULD GIVE US 6000' IN ABOUT 5 MORE MI AND I ACKNOWLEDGED. OUR ALT WAS ABOUT 7000'. THE CAPT CONTINUED THE DSCNT AND I ABSENTMINDEDLY CALLED '1000 TO GO' WHEN THE ALERTER WENT OFF AT 6700'. AT 6300' APCH ASKED WHAT OUR PREVIOUS ASSIGNED ALT WAS AND I AUTOMATICALLY ANSWERED '6000'.' I HAD 6000' ON MY MIND BECAUSE OF THE CAPT'S REQUEST. THE CAPT THEN ANSWERED THAT HE MADE A MISTAKE AND ADVISED HE WOULD CLB BACK TO 7000'. AFTER SOME SILENCE APCH SAID NEGATIVE AND CLRED US TO 6000'. SOME FACTORS: CAPT IS 'MR. REQUEST;' CONSTANTLY ASKING FOR SOMETHING OTHER THAN ASSIGNED; XING DISTRS! CAPT CONSTANTLY LISTENING TO ADF! F/O TOO IS WORRIED ABOUT NOT IRRITATING CAPT THAT HE BECAME INATTENTIVE TO THE JOB AT HAND!