Narrative:

Very familiar scenario. I was tired from 6 previous days of settling stressful family matters. Captain was on fifth consecutive day on line. It was end of 10+ hour duty day. I, the first officer, was flying from bwi to hpn, cruise altitude of FL190. ATC, ny center cleared us to 15000' which was set in altitude alerter. 200' below selected altitude buzzer sounded, but was missed by us both. Controller called us at 14400'. I leveled from a 1000-1500 FPM rate descent by 14200', initiated climb immediately back to 15000'. Captain was working radio and responded we were at 15000', simultaneously switching mode C off. Once back at 15000', he switched mode C on. No further mention made by that on 4 consecutive controllers upon which we landed at hpn. My concern is I caught captain twice prior to this of potential altitude busts during his legs to fly, and in a tactful manner mentioned we were both prime for problems to crop up from fatigue. He didn't take it to heart. When I mentioned about the ASRS program, he took it lightly, partly from little information about it, partly from belief that no suspension would result and only a fine and a mark on his record at worst. People with these attitudes are always the ones who get me in trouble or who never avert a problem I bring on myself but don't catch till too late!

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Original NASA ASRS Text

Title: CAPT TURNED OFF MODE C TO CONCEAL THE FACT THAT THEY HAD OVERSHOT THEIR ALT DURING DESCENT.

Narrative: VERY FAMILIAR SCENARIO. I WAS TIRED FROM 6 PREVIOUS DAYS OF SETTLING STRESSFUL FAMILY MATTERS. CAPT WAS ON FIFTH CONSECUTIVE DAY ON LINE. IT WAS END OF 10+ HR DUTY DAY. I, THE F/O, WAS FLYING FROM BWI TO HPN, CRUISE ALT OF FL190. ATC, NY CENTER CLRED US TO 15000' WHICH WAS SET IN ALT ALERTER. 200' BELOW SELECTED ALT BUZZER SOUNDED, BUT WAS MISSED BY US BOTH. CTLR CALLED US AT 14400'. I LEVELED FROM A 1000-1500 FPM RATE DSCNT BY 14200', INITIATED CLB IMMEDIATELY BACK TO 15000'. CAPT WAS WORKING RADIO AND RESPONDED WE WERE AT 15000', SIMULTANEOUSLY SWITCHING MODE C OFF. ONCE BACK AT 15000', HE SWITCHED MODE C ON. NO FURTHER MENTION MADE BY THAT ON 4 CONSECUTIVE CTLRS UPON WHICH WE LANDED AT HPN. MY CONCERN IS I CAUGHT CAPT TWICE PRIOR TO THIS OF POTENTIAL ALT BUSTS DURING HIS LEGS TO FLY, AND IN A TACTFUL MANNER MENTIONED WE WERE BOTH PRIME FOR PROBS TO CROP UP FROM FATIGUE. HE DIDN'T TAKE IT TO HEART. WHEN I MENTIONED ABOUT THE ASRS PROGRAM, HE TOOK IT LIGHTLY, PARTLY FROM LITTLE INFO ABOUT IT, PARTLY FROM BELIEF THAT NO SUSPENSION WOULD RESULT AND ONLY A FINE AND A MARK ON HIS RECORD AT WORST. PEOPLE WITH THESE ATTITUDES ARE ALWAYS THE ONES WHO GET ME IN TROUBLE OR WHO NEVER AVERT A PROB I BRING ON MYSELF BUT DON'T CATCH TILL TOO LATE!

Data retrieved from NASA's ASRS site as of August 2007 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.