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Flight crew of medium large transport fails to meet crossing restr by 800 ft. Controller indicates he showed 1000 ft error.
| Attributes | |
| ACN | 381180 |
| Time | |
| Date | 199709 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : dqo |
| State Reference | DE |
| Altitude | msl bound lower : 26000 msl bound upper : 26800 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent other |
| Route In Use | arrival other arrival star : star |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 180 flight time total : 12000 |
| ASRS Report | 381180 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | altitude deviation : crossing restriction not met non adherence : clearance |
| Independent Detector | other controllera |
| Resolutory Action | other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
The flight received clearance to cross the kerno intersection at FL260, not to exceed 300 KTS. Aircraft was established on speed but crossed the kerno intersection at 26800 ft. Shortly after that ZDC asked what altitude the flight was cleared to cross kerno and I replied FL260 and asked if there was a problem. The controller said that he showed the flight 1000 ft above the assigned altitude crossing kerno. At the time of the controller's inquiry the aircraft was established at FL260 and no further comment was made or action taken. Prior to the occurrence the captain was flying and handling radio calls. The first officer was making a PA to the cabin. The captain was monitoring the map display and evidently fixated on the position (dqo) report point thereby thinking sufficient DME remained to comply with the crossing restr. This point, dqo, was the next fix on the route display after kerno.
Original NASA ASRS Text
Title: FLC OF MLG FAILS TO MEET XING RESTR BY 800 FT. CTLR INDICATES HE SHOWED 1000 FT ERROR.
Narrative: THE FLT RECEIVED CLRNC TO CROSS THE KERNO INTXN AT FL260, NOT TO EXCEED 300 KTS. ACFT WAS ESTABLISHED ON SPD BUT CROSSED THE KERNO INTXN AT 26800 FT. SHORTLY AFTER THAT ZDC ASKED WHAT ALT THE FLT WAS CLRED TO CROSS KERNO AND I REPLIED FL260 AND ASKED IF THERE WAS A PROB. THE CTLR SAID THAT HE SHOWED THE FLT 1000 FT ABOVE THE ASSIGNED ALT XING KERNO. AT THE TIME OF THE CTLR'S INQUIRY THE ACFT WAS ESTABLISHED AT FL260 AND NO FURTHER COMMENT WAS MADE OR ACTION TAKEN. PRIOR TO THE OCCURRENCE THE CAPT WAS FLYING AND HANDLING RADIO CALLS. THE FO WAS MAKING A PA TO THE CABIN. THE CAPT WAS MONITORING THE MAP DISPLAY AND EVIDENTLY FIXATED ON THE POS (DQO) RPT POINT THEREBY THINKING SUFFICIENT DME REMAINED TO COMPLY WITH THE XING RESTR. THIS POINT, DQO, WAS THE NEXT FIX ON THE RTE DISPLAY AFTER KERNO.
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.