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DC9 flight crew is unable to make crossing restriction at an assigned airspeed and altitude due to inexperience with non-FMC aircraft.
| Attributes | |
| ACN | 738901 |
| Time | |
| Date | 200705 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : msp.airport |
| State Reference | MN |
| Altitude | msl single value : 20000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zmp.artcc tower : zzzz.tower |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : intermediate altitude |
| Route In Use | arrival star : gopher |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 66 flight time total : 14000 flight time type : 66 |
| ASRS Report | 738901 |
| Events | |
| Anomaly | altitude deviation : crossing restriction not met non adherence : clearance |
| Independent Detector | other flight crewa |
| Resolutory Action | controller : issued new clearance |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Aircraft |
| Primary Problem | Flight Crew Human Performance |
Narrative:
Basically cleared on gopher 5 arrival to msp to cross ollee intersection at 11000 ft. Later given speed reduction from normal of 300 KIAS to 270 KIAS. Determined after a few mins delay we could not make the crossing restr given this speed and wind conditions. ATC (ZMP) offered a turn off course to 'south' back for descent as a faster speed could not be approved. Eventually issued 'descend to 11000' rather than 'cross ollee at 11000.' with no wind readout and '/west' equipped aircraft; coupled with my inexperience in the aircraft having come from 'glass;' I let the first officer get high. No conflict occurred with other aircraft and ZMP voiced no concerns. Still; these situations can sneak up on pilots in these older generation aircraft; after transitioning from FMS aircraft. One can be ultra conservative and descend early; however; with fuel costs as they are; often contingency fuel is sparse and early dscnts/low altitude cruise can put one in a fuel reserve corner.
Original NASA ASRS Text
Title: DC9 FLT CREW IS UNABLE TO MAKE CROSSING RESTRICTION AT AN ASSIGNED AIRSPEED AND ALTITUDE DUE TO INEXPERIENCE WITH NON-FMC ACFT.
Narrative: BASICALLY CLRED ON GOPHER 5 ARR TO MSP TO CROSS OLLEE INTXN AT 11000 FT. LATER GIVEN SPD REDUCTION FROM NORMAL OF 300 KIAS TO 270 KIAS. DETERMINED AFTER A FEW MINS DELAY WE COULD NOT MAKE THE XING RESTR GIVEN THIS SPD AND WIND CONDITIONS. ATC (ZMP) OFFERED A TURN OFF COURSE TO 'S' BACK FOR DSCNT AS A FASTER SPD COULD NOT BE APPROVED. EVENTUALLY ISSUED 'DSND TO 11000' RATHER THAN 'CROSS OLLEE AT 11000.' WITH NO WIND READOUT AND '/W' EQUIPPED ACFT; COUPLED WITH MY INEXPERIENCE IN THE ACFT HAVING COME FROM 'GLASS;' I LET THE FO GET HIGH. NO CONFLICT OCCURRED WITH OTHER ACFT AND ZMP VOICED NO CONCERNS. STILL; THESE SITUATIONS CAN SNEAK UP ON PLTS IN THESE OLDER GENERATION ACFT; AFTER TRANSITIONING FROM FMS ACFT. ONE CAN BE ULTRA CONSERVATIVE AND DSND EARLY; HOWEVER; WITH FUEL COSTS AS THEY ARE; OFTEN CONTINGENCY FUEL IS SPARSE AND EARLY DSCNTS/LOW ALT CRUISE CAN PUT ONE IN A FUEL RESERVE CORNER.
Data retrieved from NASA's ASRS site as of January 2009 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.