Altitude deviation altitude overshot in descent procedure.

Attributes
ACN	295734
Time
Date	199502
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : dpk airport : jfk
State Reference	NY
Altitude	msl bound lower : 10300 msl bound upper : 11000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : ord
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent other
Route In Use	enroute airway : n90
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 80 flight time total : 3000 flight time type : 80
ASRS Report	295734
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : overshoot altitude deviation : crossing restriction not met non adherence : published procedure non adherence : clearance other anomaly other
Independent Detector	other controllera
Resolutory Action	flight crew : became reoriented flight crew : returned to intended course or assigned course other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Check-in time for flight was at XA00, a delay of 7 hours. This had been pushed back from XB00 due to a snow storm. The flight from jfk to cun was normal, on return, fatigue began to set in. The captain picked up the ATIS while still in crz. After descent I picked up the ATIS and verified it was the same one the captain had. I verified it only by letter 'B' and did not do a full read, like I normally would. Passing 18000 ft in descent the captain (PF) set his altimeters, I set mine the same as his, without checking my notes from the ATIS. The captain had set his altimeter to the wind 300 degree at 19 KTS on his note pad 300.19 so he set 30.19. The correct setting was 29.40 or something I don't remember it now. ATC had us cross camrn at 11000 ft as on the STAR camrn 2 arrival. When we leveled at 11000 ft the controller called and said we were at 10300 ft. We asked for the altimeter setting as we showed 11000 ft. He gave it to us and we discovered our mistake. We had been flying from XC00 to XD00 in the morning. Even though I heard the correct setting on the ATIS and the controller gave us the setting at the beginning of descent I did not recognize the captain's mistake. I think fatigue had a lot to do with this. We should have crosschecked the captain's notes with mind and or the setting given by ATC. ATC gave us the setting at the end of a descent clearance, and it was more than I could remember being so tired. Maybe ATC can give the setting when passing 18000 ft. I feel fatigue was the major cause of this case.

Original NASA ASRS Text

Title: ALTDEV ALT OVERSHOT IN DSCNT PROC.

Narrative: CHK-IN TIME FOR FLT WAS AT XA00, A DELAY OF 7 HRS. THIS HAD BEEN PUSHED BACK FROM XB00 DUE TO A SNOW STORM. THE FLT FROM JFK TO CUN WAS NORMAL, ON RETURN, FATIGUE BEGAN TO SET IN. THE CAPT PICKED UP THE ATIS WHILE STILL IN CRZ. AFTER DSCNT I PICKED UP THE ATIS AND VERIFIED IT WAS THE SAME ONE THE CAPT HAD. I VERIFIED IT ONLY BY LETTER 'B' AND DID NOT DO A FULL READ, LIKE I NORMALLY WOULD. PASSING 18000 FT IN DSCNT THE CAPT (PF) SET HIS ALTIMETERS, I SET MINE THE SAME AS HIS, WITHOUT CHKING MY NOTES FROM THE ATIS. THE CAPT HAD SET HIS ALTIMETER TO THE WIND 300 DEG AT 19 KTS ON HIS NOTE PAD 300.19 SO HE SET 30.19. THE CORRECT SETTING WAS 29.40 OR SOMETHING I DON'T REMEMBER IT NOW. ATC HAD US CROSS CAMRN AT 11000 FT AS ON THE STAR CAMRN 2 ARR. WHEN WE LEVELED AT 11000 FT THE CTLR CALLED AND SAID WE WERE AT 10300 FT. WE ASKED FOR THE ALTIMETER SETTING AS WE SHOWED 11000 FT. HE GAVE IT TO US AND WE DISCOVERED OUR MISTAKE. WE HAD BEEN FLYING FROM XC00 TO XD00 IN THE MORNING. EVEN THOUGH I HEARD THE CORRECT SETTING ON THE ATIS AND THE CTLR GAVE US THE SETTING AT THE BEGINNING OF DSCNT I DID NOT RECOGNIZE THE CAPT'S MISTAKE. I THINK FATIGUE HAD A LOT TO DO WITH THIS. WE SHOULD HAVE XCHKED THE CAPT'S NOTES WITH MIND AND OR THE SETTING GIVEN BY ATC. ATC GAVE US THE SETTING AT THE END OF A DSCNT CLRNC, AND IT WAS MORE THAN I COULD REMEMBER BEING SO TIRED. MAYBE ATC CAN GIVE THE SETTING WHEN PASSING 18000 FT. I FEEL FATIGUE WAS THE MAJOR CAUSE OF THIS CASE.

Data retrieved from NASA's ASRS site as of July 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.