37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 200478 |
Time | |
Date | 199201 |
Day | Fri |
Local Time Of Day | 0601 To 1200 |
Place | |
Locale Reference | atc facility : atl |
State Reference | GA |
Altitude | msl bound lower : 9000 msl bound upper : 11000 |
Environment | |
Flight Conditions | VMC |
Light | Daylight |
Aircraft 1 | |
Controlling Facilities | tower : cpa |
Operator | common carrier : air carrier |
Make Model Name | Light Transport, Low Wing, 2 Turboprop Eng |
Navigation In Use | Other Other |
Flight Phase | cruise other |
Route In Use | arrival other arrival star : star enroute : direct enroute airway : atl |
Flight Plan | IFR |
Person 1 | |
Affiliation | company : air carrier |
Function | flight crew : first officer |
Qualification | pilot : cfi pilot : atp |
Experience | flight time last 90 days : 240 flight time total : 3300 flight time type : 1000 |
ASRS Report | 200478 |
Person 2 | |
Affiliation | company : air carrier |
Function | flight crew : captain oversight : pic |
Qualification | pilot : atp |
Experience | flight time last 90 days : 240 flight time total : 14000 flight time type : 120 |
ASRS Report | 200735 |
Events | |
Anomaly | altitude deviation : undershoot altitude deviation : crossing restriction not met non adherence : clearance other anomaly other |
Independent Detector | other controllera |
Resolutory Action | controller : issued new clearance 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:
We were inbound to atlanta on the macy 1 arrival at 11000 ft about 60 NM out. ATC told us to cross 40 mis out at 9000 ft. The captain was flying. I was the first officer, working the radios. I read back the crossing restriction. The captain dialed in 9000 ft in the altitude alerter. Both the captain and myself simply forgot to descend. At about 38 DME ATC asked us our assigned altitude. We then realized we failed to descend. I read back our altitude and we descended immediately. As far as we know, there was no traffic conflict. A possible contributing factor could be lack of adequate rest. We were finishing a continuous duty overnight and had 4 1/2 to 5 hours sleep the night before. This was my second continuous duty in a row. Supplemental information from acn 200735: was not able to seep after going to bed. Got about 4 hours of sleep. Mentally, I was brain dead.
Original NASA ASRS Text
Title: ALTDEV ALT UNDERSHOT RESULTING IN ALT XING RESTRICTION NOT MET.
Narrative: WE WERE INBOUND TO ATLANTA ON THE MACY 1 ARR AT 11000 FT ABOUT 60 NM OUT. ATC TOLD US TO CROSS 40 MIS OUT AT 9000 FT. THE CAPT WAS FLYING. I WAS THE FO, WORKING THE RADIOS. I READ BACK THE XING RESTRICTION. THE CAPT DIALED IN 9000 FT IN THE ALT ALERTER. BOTH THE CAPT AND MYSELF SIMPLY FORGOT TO DSND. AT ABOUT 38 DME ATC ASKED US OUR ASSIGNED ALT. WE THEN REALIZED WE FAILED TO DSND. I READ BACK OUR ALT AND WE DSNDED IMMEDIATELY. AS FAR AS WE KNOW, THERE WAS NO TFC CONFLICT. A POSSIBLE CONTRIBUTING FACTOR COULD BE LACK OF ADEQUATE REST. WE WERE FINISHING A CONTINUOUS DUTY OVERNIGHT AND HAD 4 1/2 TO 5 HRS SLEEP THE NIGHT BEFORE. THIS WAS MY SECOND CONTINUOUS DUTY IN A ROW. SUPPLEMENTAL INFO FROM ACN 200735: WAS NOT ABLE TO SEEP AFTER GOING TO BED. GOT ABOUT 4 HRS OF SLEEP. MENTALLY, I WAS BRAIN DEAD.
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.