 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Air carrier widebody transport altitude deviation undershot altitude crossing restriction on climb out from sfo to hnl.
| Attributes | |
| ACN | 191846 |
| Time | |
| Date | 199110 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : sau |
| State Reference | CA |
| Altitude | msl bound lower : 34000 msl bound upper : 35000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 3 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : other oceanic enroute : pacific enroute airway : r464 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : instrument pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 400 flight time total : 15000 flight time type : 1100 |
| ASRS Report | 191846 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : flight engineer pilot : commercial pilot : instrument pilot : atp |
| Experience | flight time last 90 days : 220 flight time total : 9250 flight time type : 5000 |
| ASRS Report | 191851 |
| Events | |
| Anomaly | altitude deviation : crossing restriction not met altitude deviation : undershoot non adherence : clearance |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Cleared to cross 50 mi southwest of bebop (first chkpoint) at and maintain 350. During original clearance, we requested to be able to cross at 75 mi, controller advised unable due to loss of radar coverage. At 50 mi, we were out of 340 climbing but climb performance and airspeed deteriorated to the point that it took another 30 mi to reach 350. At that point we were challenged by controller of original crossing clearance. We reported out of 330 at 35 mi and in our judgement we could comply.
Original NASA ASRS Text
Title: ACR WDB ALTDEV UNDERSHOT ALT XING RESTRICTION ON CLB OUT FROM SFO TO HNL.
Narrative: CLRED TO CROSS 50 MI SW OF BEBOP (FIRST CHKPOINT) AT AND MAINTAIN 350. DURING ORIGINAL CLRNC, WE REQUESTED TO BE ABLE TO CROSS AT 75 MI, CTLR ADVISED UNABLE DUE TO LOSS OF RADAR COVERAGE. AT 50 MI, WE WERE OUT OF 340 CLBING BUT CLB PERFORMANCE AND AIRSPD DETERIORATED TO THE POINT THAT IT TOOK ANOTHER 30 MI TO REACH 350. AT THAT POINT WE WERE CHALLENGED BY CTLR OF ORIGINAL XING CLRNC. WE RPTED OUT OF 330 AT 35 MI AND IN OUR JUDGEMENT WE COULD COMPLY.
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.