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An air carrier widebody transport first officer states that his company's pre departure clearance presentation does not highlight a routing change.
| Attributes | |
| ACN | 251968 |
| Time | |
| Date | 199309 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : sea |
| State Reference | WA |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zse |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 3 Turbojet Eng |
| Flight Phase | cruise other ground : preflight |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 12000 flight time type : 1000 |
| ASRS Report | 251968 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | non adherence : clearance other anomaly other other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Flight plan read: sea.J70.mlp.J136.bil.mcw.JVL3.ord. Pre departure clearance read: J90.mhw.mlp. Sea.J70.mlp.J136.bil. Mcw.JVL3.ord. ?Npr. The line J90.mhw.mlp is the preferred routing. The line sea.J70.mlp etc, was the flight plan routing. No amendment to the flight plan routing was received from clearance delivery. We assumed then we were expected to fly sea.J70.mlp. Center, however, expected us to fly J90.mhw.mlp. Before we reached 80 DME east of sea on J70, we were cleared 075 degree heading direct dpr. We were questioned about our routing because we were the third company aircraft in a row to interpret the same clearance in this way. We never caused a conflict. In fact, due to our direct routing, probably remained within the J90 airspace. However, the fact that 3 crew all interpreted the same clearance in the same way leads me to believe that the pre departure clearance procedure for a route change should be highlighted and be more apparent to the crews. Our dispatch has since been made aware of the problem.
Original NASA ASRS Text
Title: AN ACR WDB FO STATES THAT HIS COMPANY'S PDC PRESENTATION DOES NOT HIGHLIGHT A ROUTING CHANGE.
Narrative: FLT PLAN READ: SEA.J70.MLP.J136.BIL.MCW.JVL3.ORD. PDC READ: J90.MHW.MLP. SEA.J70.MLP.J136.BIL. MCW.JVL3.ORD. ?NPR. THE LINE J90.MHW.MLP IS THE PREFERRED ROUTING. THE LINE SEA.J70.MLP ETC, WAS THE FLT PLAN ROUTING. NO AMENDMENT TO THE FLT PLAN ROUTING WAS RECEIVED FROM CLRNC DELIVERY. WE ASSUMED THEN WE WERE EXPECTED TO FLY SEA.J70.MLP. CTR, HOWEVER, EXPECTED US TO FLY J90.MHW.MLP. BEFORE WE REACHED 80 DME E OF SEA ON J70, WE WERE CLRED 075 DEG HDG DIRECT DPR. WE WERE QUESTIONED ABOUT OUR ROUTING BECAUSE WE WERE THE THIRD COMPANY ACFT IN A ROW TO INTERPRET THE SAME CLRNC IN THIS WAY. WE NEVER CAUSED A CONFLICT. IN FACT, DUE TO OUR DIRECT ROUTING, PROBABLY REMAINED WITHIN THE J90 AIRSPACE. HOWEVER, THE FACT THAT 3 CREW ALL INTERPRETED THE SAME CLRNC IN THE SAME WAY LEADS ME TO BELIEVE THAT THE PDC PROC FOR A RTE CHANGE SHOULD BE HIGHLIGHTED AND BE MORE APPARENT TO THE CREWS. OUR DISPATCH HAS SINCE BEEN MADE AWARE OF THE PROB.
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.