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Flight crew of cpr small transport accepted crossing at pmd of 21000' but unable to make the crossing. Controller turned cpr and traffic to provide separation.
| Attributes | |
| ACN | 173177 |
| Time | |
| Date | 199103 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : pmd |
| State Reference | CA |
| Altitude | msl bound lower : 20500 msl bound upper : 21000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zla |
| Operator | general aviation : corporate |
| Make Model Name | Small Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : cfi pilot : commercial pilot : instrument |
| Experience | flight time last 90 days : 150 flight time total : 8000 flight time type : 3500 |
| ASRS Report | 173177 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | altitude deviation : undershoot altitude deviation : crossing restriction not met non adherence : clearance other anomaly other |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
While climbing toward pmd out of 16000' we were cleared to cross 8 DME at 21000'. We were 16 DME from pmd. Climb was initiated. Rate 2000 plus at speed 180 KTS indicated. As climb progressed it became evident the crossing restriction would be close. ATC queried if we would make the restriction. The response was 'not quite'. The controller turned our aircraft to the right. There was conflicting traffic at our 12 O'clock which was turned to the right. The traffic was in sight at the time of the turn. The situation was reviewed to find why the restriction was not met. The conclusion was, the speed of the aircraft was indicated not ground speed. The climb was into a ever increasing tailwind which shallowed the climb gradient. The problem should not have occurred. The captain should have realized the restriction would be close and no room for error was available.
Original NASA ASRS Text
Title: FLT CREW OF CPR SMT ACCEPTED CROSSING AT PMD OF 21000' BUT UNABLE TO MAKE THE CROSSING. CTLR TURNED CPR AND TRAFFIC TO PROVIDE SEPARATION.
Narrative: WHILE CLBING TOWARD PMD OUT OF 16000' WE WERE CLRED TO CROSS 8 DME AT 21000'. WE WERE 16 DME FROM PMD. CLB WAS INITIATED. RATE 2000 PLUS AT SPD 180 KTS INDICATED. AS CLB PROGRESSED IT BECAME EVIDENT THE XING RESTRICTION WOULD BE CLOSE. ATC QUERIED IF WE WOULD MAKE THE RESTRICTION. THE RESPONSE WAS 'NOT QUITE'. THE CTLR TURNED OUR ACFT TO THE R. THERE WAS CONFLICTING TFC AT OUR 12 O'CLOCK WHICH WAS TURNED TO THE R. THE TFC WAS IN SIGHT AT THE TIME OF THE TURN. THE SITUATION WAS REVIEWED TO FIND WHY THE RESTRICTION WAS NOT MET. THE CONCLUSION WAS, THE SPD OF THE ACFT WAS INDICATED NOT GND SPD. THE CLB WAS INTO A EVER INCREASING TAILWIND WHICH SHALLOWED THE CLB GRADIENT. THE PROB SHOULD NOT HAVE OCCURRED. THE CAPT SHOULD HAVE REALIZED THE RESTRICTION WOULD BE CLOSE AND NO ROOM FOR ERROR WAS AVAILABLE.
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.