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A descending B737-300 fails to make a crossing restr when the LNAV drops off 2 mi northeast of das VOR, tx.
| Attributes | |
| ACN | 473640 |
| Time | |
| Date | 200005 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : das.vortac |
| State Reference | TX |
| Altitude | msl bound lower : 10000 msl bound upper : 17000 |
| Environment | |
| Flight Conditions | Marginal |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zhu.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other other vortac |
| Flight Phase | descent : vacating altitude |
| Route In Use | arrival star : daisetta |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 50 flight time total : 15400 flight time type : 4000 |
| ASRS Report | 473640 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : commercial pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 240 flight time total : 20500 flight time type : 2300 |
| ASRS Report | 473649 |
| Events | |
| Anomaly | aircraft equipment problem : less severe altitude deviation : crossing restriction not met altitude deviation : undershoot non adherence : clearance non adherence : company policies non adherence : published procedure other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | none taken : insufficient time |
| Consequence | faa : reviewed incident with flight crew Other |
| Supplementary | |
| Problem Areas | ATC Human Performance Aircraft Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We were descending into iah on the das.DAS3 STAR. We were cleared to cross das at 10000 ft and 250 KTS. I programmed the FMS and activated VNAV and LNAV on the MCP. We think that the VNAV kicked off but we didn't notice it. Due to inattention and complacency, I didn't notice how far off profile we were until 6 NM northeast of das, when center queried if we were going to make the restr. I replied no, and requested a turn out. They didn't reply for a moment and then handed us off to houston approach. Center told us that approach would accept us as we were and that there were no traffic conflicts.
Original NASA ASRS Text
Title: A DSNDING B737-300 FAILS TO MAKE A XING RESTR WHEN THE LNAV DROPS OFF 2 MI NE OF DAS VOR, TX.
Narrative: WE WERE DSNDING INTO IAH ON THE DAS.DAS3 STAR. WE WERE CLRED TO CROSS DAS AT 10000 FT AND 250 KTS. I PROGRAMMED THE FMS AND ACTIVATED VNAV AND LNAV ON THE MCP. WE THINK THAT THE VNAV KICKED OFF BUT WE DIDN'T NOTICE IT. DUE TO INATTENTION AND COMPLACENCY, I DIDN'T NOTICE HOW FAR OFF PROFILE WE WERE UNTIL 6 NM NE OF DAS, WHEN CTR QUERIED IF WE WERE GOING TO MAKE THE RESTR. I REPLIED NO, AND REQUESTED A TURN OUT. THEY DIDN'T REPLY FOR A MOMENT AND THEN HANDED US OFF TO HOUSTON APCH. CTR TOLD US THAT APCH WOULD ACCEPT US AS WE WERE AND THAT THERE WERE NO TFC CONFLICTS.
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.