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Flight crew of a saab 340, SF34L, undershot descent altitude resulting in not meeting an assigned crossing fix altitude restr.
| Attributes | |
| ACN | 382500 |
| Time | |
| Date | 199710 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : cqy airport : dfw |
| State Reference | TX |
| Altitude | msl bound lower : 7000 msl bound upper : 8500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zny |
| Operator | common carrier : air carrier |
| Make Model Name | SF 340A |
| Navigation In Use | Other |
| Flight Phase | descent other |
| Route In Use | arrival other arrival star : star enroute airway : dfw |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 140 flight time total : 13000 flight time type : 6600 |
| ASRS Report | 382500 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | altitude deviation : undershoot altitude deviation : crossing restriction not met non adherence : clearance |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
During descent for arrival into dfw we were given a crossing restr of sousa intersection at 7000 ft. ZFW then handed us off to approach (dfw) which then stopped us at 11000 ft, due to conflicting traffic. Once clear of traffic we were again given sousa intersection at 7000 ft. The first officer, the PF, then resumed descent. At this point descent and approach checklist were called for and run. About halfway through approach check captain noticed that we were at 8500 ft over sousa. First officer then stated he had misread STAR. Contributing to this could be first officer's relative inexperience (50 hours), unfamiliarity with area, and reduced rest the night before. The arrival at any busy area always include a high workload with several distractions, and this again underscores the importance of due vigilance from both crew members.
Original NASA ASRS Text
Title: FLC OF A SAAB 340, SF34L, UNDERSHOT DSCNT ALT RESULTING IN NOT MEETING AN ASSIGNED XING FIX ALT RESTR.
Narrative: DURING DSCNT FOR ARR INTO DFW WE WERE GIVEN A XING RESTR OF SOUSA INTXN AT 7000 FT. ZFW THEN HANDED US OFF TO APCH (DFW) WHICH THEN STOPPED US AT 11000 FT, DUE TO CONFLICTING TFC. ONCE CLR OF TFC WE WERE AGAIN GIVEN SOUSA INTXN AT 7000 FT. THE FO, THE PF, THEN RESUMED DSCNT. AT THIS POINT DSCNT AND APCH CHKLIST WERE CALLED FOR AND RUN. ABOUT HALFWAY THROUGH APCH CHK CAPT NOTICED THAT WE WERE AT 8500 FT OVER SOUSA. FO THEN STATED HE HAD MISREAD STAR. CONTRIBUTING TO THIS COULD BE FO'S RELATIVE INEXPERIENCE (50 HRS), UNFAMILIARITY WITH AREA, AND REDUCED REST THE NIGHT BEFORE. THE ARR AT ANY BUSY AREA ALWAYS INCLUDE A HIGH WORKLOAD WITH SEVERAL DISTRACTIONS, AND THIS AGAIN UNDERSCORES THE IMPORTANCE OF DUE VIGILANCE FROM BOTH CREW MEMBERS.
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.