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First officer of an light transport air carrier aircraft undershot the descent on a STAR resulting in not meeting an ATC crossing restriction.
| Attributes | |
| ACN | 239136 |
| Time | |
| Date | 199304 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : iah |
| State Reference | TX |
| Altitude | msl bound lower : 8000 msl bound upper : 9000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Light Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | descent other |
| Route In Use | arrival other arrival star : star enroute airway : iah |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Experience | flight time last 90 days : 130 flight time total : 3200 |
| ASRS Report | 239136 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : crossing restriction not met altitude deviation : undershoot non adherence : published procedure non adherence : clearance other anomaly other |
| Independent Detector | atc equipment other atc equipment : unspecified other controllera |
| Resolutory Action | 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:
On a descent into iah, we had a crossing restriction of 8000 ft at an intersection on the sabine 5 STAR. The captain set in 8000 in the altitude select but in my mind I had 9000. We were very tired, the trip was a stand up overnight. Our duty time was going to exceed 15 hours at the time of the incident. I leveled off at 9000 only to hear the controller inform us that we were supposed to be at 8000. Neither of us noticed the restriction mistake until the controller called. A definite factor was our lack of rest and long duty time. Things of this nature happen everyday, but there is no test for fatigue. The problem is not drugs and drug testing, but long duty time! Think about it -- small cramped space for several long hours doing a mentally demanding job with noise, vibration, little or no food, and the sun constantly battering your body. Now there is the real problem.
Original NASA ASRS Text
Title: FO OF AN LTT ACR ACFT UNDERSHOT THE DSCNT ON A STAR RESULTING IN NOT MEETING AN ATC XING RESTRICTION.
Narrative: ON A DSCNT INTO IAH, WE HAD A XING RESTRICTION OF 8000 FT AT AN INTXN ON THE SABINE 5 STAR. THE CAPT SET IN 8000 IN THE ALT SELECT BUT IN MY MIND I HAD 9000. WE WERE VERY TIRED, THE TRIP WAS A STAND UP OVERNIGHT. OUR DUTY TIME WAS GOING TO EXCEED 15 HRS AT THE TIME OF THE INCIDENT. I LEVELED OFF AT 9000 ONLY TO HEAR THE CTLR INFORM US THAT WE WERE SUPPOSED TO BE AT 8000. NEITHER OF US NOTICED THE RESTRICTION MISTAKE UNTIL THE CTLR CALLED. A DEFINITE FACTOR WAS OUR LACK OF REST AND LONG DUTY TIME. THINGS OF THIS NATURE HAPPEN EVERYDAY, BUT THERE IS NO TEST FOR FATIGUE. THE PROB IS NOT DRUGS AND DRUG TESTING, BUT LONG DUTY TIME! THINK ABOUT IT -- SMALL CRAMPED SPACE FOR SEVERAL LONG HRS DOING A MENTALLY DEMANDING JOB WITH NOISE, VIBRATION, LITTLE OR NO FOOD, AND THE SUN CONSTANTLY BATTERING YOUR BODY. NOW THERE IS THE REAL PROB.
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.