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Flight crew of an medium large transport became distracted with other cockpit duties causing them to not start their descent in sufficient time to make assigned crossing altitude. However, ATC intervened before the crossing fix and changed to another further ahead.
| Attributes | |
| ACN | 326750 |
| Time | |
| Date | 199601 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : jst |
| State Reference | PA |
| Altitude | msl bound lower : 25000 msl bound upper : 29000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zny |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 30 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent other |
| Route In Use | arrival other arrival star : star enroute airway : j152 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 160 flight time total : 12000 flight time type : 3600 |
| ASRS Report | 326750 |
| 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 : clearance |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
On har.bucks 3 arrival to phl over jst we were given a descent to cross cofax at FL250, from our cruise of FL290. We calculated the distance needed to make the descent and then became preoccupied with cockpit procedures and duties. Just as we noticed our distance to the descent point, ATC called to ask us to start our descent (this was about 36 NM from jst and 45 NM from har). We had started our descent and as we figured that we would miss our crossing restr by a mi or two ATC called to give us a new crossing restr of 30 NM west of lrp at FL180. With this new restr we reduced our descent and continued with no further incidents.
Original NASA ASRS Text
Title: FLC OF AN MLG BECAME DISTRACTED WITH OTHER COCKPIT DUTIES CAUSING THEM TO NOT START THEIR DSCNT IN SUFFICIENT TIME TO MAKE ASSIGNED XING ALT. HOWEVER, ATC INTERVENED BEFORE THE XING FIX AND CHANGED TO ANOTHER FURTHER AHEAD.
Narrative: ON HAR.BUCKS 3 ARR TO PHL OVER JST WE WERE GIVEN A DSCNT TO CROSS COFAX AT FL250, FROM OUR CRUISE OF FL290. WE CALCULATED THE DISTANCE NEEDED TO MAKE THE DSCNT AND THEN BECAME PREOCCUPIED WITH COCKPIT PROCS AND DUTIES. JUST AS WE NOTICED OUR DISTANCE TO THE DSCNT POINT, ATC CALLED TO ASK US TO START OUR DSCNT (THIS WAS ABOUT 36 NM FROM JST AND 45 NM FROM HAR). WE HAD STARTED OUR DSCNT AND AS WE FIGURED THAT WE WOULD MISS OUR XING RESTR BY A MI OR TWO ATC CALLED TO GIVE US A NEW XING RESTR OF 30 NM W OF LRP AT FL180. WITH THIS NEW RESTR WE REDUCED OUR DSCNT AND CONTINUED WITH NO FURTHER INCIDENTS.
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.