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Widebody captain reports speed restr note for departures to the south on the ORD3 spells the cmsky fix as cemsky on his commercial charts and leads to exceeding speed limit.
| Attributes | |
| ACN | 815286 |
| Time | |
| Date | 200812 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : ord.airport |
| State Reference | IL |
| Altitude | msl single value : 12000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zau.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody Transport |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure sid : ord |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 550 flight time total : 3500 flight time type : 250 |
| ASRS Report | 815286 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | controller : radar flight crew : first officer |
| Qualification | pilot : flight engineer pilot : atp pilot : commercial |
| Experience | flight time last 90 days : 120 flight time total : 4000 flight time type : 400 |
| ASRS Report | 815455 |
| Events | |
| Anomaly | non adherence : published procedure other anomaly |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued advisory controller : issued new clearance |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Airspace Structure Chart Or Publication |
| Primary Problem | Ambiguous |
Narrative:
On climb out from ord center controller questioned us about our speed. We were doing 310 KTS in the climb from 10000 ft to 14000 ft. He informed us we had not been cleared to accelerate past 250 KTS. We were instructed to maintain 270 KTS. Controller said the speed restr was on the SID (ORD3). This is a radar vector SID. The controller stated that a lot of flight crew were missing the restr. A further review of the SID showed the restr airspeeds were for southerly SID waypoints; the one in question being cemsky. We were cleared over and were flying to cmsky. This is the only waypoint in the restr box that is spelled with six letters and not the standard five letter format. This deviation from standard practices led directly to the confusion on speed restrs.
Original NASA ASRS Text
Title: WIDEBODY CAPT RPTS SPEED RESTR NOTE FOR DEPS TO THE S ON THE ORD3 SPELLS THE CMSKY FIX AS CEMSKY ON HIS COMMERCIAL CHARTS AND LEADS TO EXCEEDING SPEED LIMIT.
Narrative: ON CLBOUT FROM ORD CENTER CTLR QUESTIONED US ABOUT OUR SPEED. WE WERE DOING 310 KTS IN THE CLB FROM 10000 FT TO 14000 FT. HE INFORMED US WE HAD NOT BEEN CLEARED TO ACCELERATE PAST 250 KTS. WE WERE INSTRUCTED TO MAINTAIN 270 KTS. CTLR SAID THE SPEED RESTR WAS ON THE SID (ORD3). THIS IS A RADAR VECTOR SID. THE CTLR STATED THAT A LOT OF FLT CREW WERE MISSING THE RESTR. A FURTHER REVIEW OF THE SID SHOWED THE RESTR AIRSPEEDS WERE FOR SOUTHERLY SID WAYPOINTS; THE ONE IN QUESTION BEING CEMSKY. WE WERE CLEARED OVER AND WERE FLYING TO CMSKY. THIS IS THE ONLY WAYPOINT IN THE RESTR BOX THAT IS SPELLED WITH SIX LETTERS AND NOT THE STANDARD FIVE LETTER FORMAT. THIS DEV FROM STANDARD PRACTICES LED DIRECTLY TO THE CONFUSION ON SPEED RESTRS.
Data retrieved from NASA's ASRS site as of May 2009 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.