 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Flight crew of a british HS125-700 failed to turn as described in SID departure due to misunderstanding chart depictions.
| Attributes | |
| ACN | 477538 |
| Time | |
| Date | 200007 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| State Reference | CO |
| Altitude | msl bound lower : 10500 msl bound upper : 13000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdv.artcc |
| Operator | general aviation : corporate |
| Make Model Name | HS 125 Series 700 |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure sid : gypsm 2.rlg |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : corporate |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 90 flight time total : 5800 flight time type : 1500 |
| ASRS Report | 477538 |
| Person 2 | |
| Affiliation | company : corporate |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial |
| Events | |
| Anomaly | non adherence : published procedure non adherence : clearance |
| Independent Detector | atc equipment other atc equipment : radar other controllera |
| Resolutory Action | controller : issued alert none taken : detected after the fact |
| Supplementary | |
| Problem Areas | Chart Or Publication Flight Crew Human Performance |
| Primary Problem | Chart Or Publication |
| Situations | |
| Chart | sid : gypsm 2. rlg |
Narrative:
Clearance published on SID extremely unclr. We were flying the newly published SID (name unknown, I don't have access to the chart as I write this) that calls for climb to 13500 ft via 215 degree heading off runway 25 and then a right turn to intercept the dbl 322 degree radial. The SID does not make clear whether to turn before or after reaching 13500 ft. Our first assigned altitude, prior to takeoff, was 14000 ft. The old IFR departure procedure published for ege makes the altitude restrs much more understandable. Center controller chastised us for not turning sooner, though I would have done it the same way again. If 13500 ft is not a minimum altitude for the turn then what is it? Should it be worded 'climb to 13500 ft or as assigned by ATC? What happened to the 9000 ft minimum turning altitude in the old IFR departure procedure? At best this is poor wording, at worst an accident waiting to happen.
Original NASA ASRS Text
Title: FLC OF A BRITISH HS125-700 FAILED TO TURN AS DESCRIBED IN SID DEP DUE TO MISUNDERSTANDING CHART DEPICTIONS.
Narrative: CLRNC PUBLISHED ON SID EXTREMELY UNCLR. WE WERE FLYING THE NEWLY PUBLISHED SID (NAME UNKNOWN, I DON'T HAVE ACCESS TO THE CHART AS I WRITE THIS) THAT CALLS FOR CLB TO 13500 FT VIA 215 DEG HDG OFF RWY 25 AND THEN A R TURN TO INTERCEPT THE DBL 322 DEG RADIAL. THE SID DOES NOT MAKE CLR WHETHER TO TURN BEFORE OR AFTER REACHING 13500 FT. OUR FIRST ASSIGNED ALT, PRIOR TO TKOF, WAS 14000 FT. THE OLD IFR DEP PROC PUBLISHED FOR EGE MAKES THE ALT RESTRS MUCH MORE UNDERSTANDABLE. CTR CTLR CHASTISED US FOR NOT TURNING SOONER, THOUGH I WOULD HAVE DONE IT THE SAME WAY AGAIN. IF 13500 FT IS NOT A MINIMUM ALT FOR THE TURN THEN WHAT IS IT? SHOULD IT BE WORDED 'CLB TO 13500 FT OR AS ASSIGNED BY ATC? WHAT HAPPENED TO THE 9000 FT MINIMUM TURNING ALT IN THE OLD IFR DEP PROC? AT BEST THIS IS POOR WORDING, AT WORST AN ACCIDENT WAITING TO HAPPEN.
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.