B757 flight crew reported being issued a reroute just prior to departure via cpdlc. The only change ...

Narrative:

Departing from mco; we received out initial delivery clearance (dcl) which was the mccoy 1 as filed; which we accepted. Our aircraft was unable to print clearances. Shortly before departure; we received an amended dcl message. When we accepted and loaded this; the only change was to the SID to the orlando 1 departure. After departure while in contact with jacksonville center controller; we were advised of a re-route followed by a full route clearance. The way we initially discovered that the route we were flying and the route ATC thought we were flying were different was when jacksonville center cleared us to a fix that was not on our loaded route. When we clarified this; we then were given the full route re-route.this re-route was so large that the fuel on board was not sufficient for arrival with adequate reserves. After a lengthy period of negotiating with several subsequent ATC sectors and also speaking with dispatch and the ATC desk; we made the decision to divert for fuel. An uneventful diversion and continuation to destination followed.the main reason for this report is to shed light on what I feel is a gap in the current dcl system. In my view; there are only two possible reasons for what occurred. Either we didn't properly accept and execute the revised dcl or we did and there was some sort of glitch where only the SID and not the route was loaded. I don't feel the first scenario is the correct one as I watched the first officer accept and load the dcl clearance. In addition; the SID was changed in the FMC following this; so obviously the 'load' prompt was selected. The concern with either one of these scenarios is that there is apparently no system in place to assure both ATC and the pilots that the most current clearance is loaded in the FMC. If we hadn't properly loaded the revised clearance; ATC needs to know that; and if we did properly load it and there was a glitch that only loaded the new SID but not the route; ATC needs that information too. There doesn't seem to be a feedback system that ensures this.

Original NASA ASRS Text

Title: B757 flight crew reported being issued a reroute just prior to departure via CPDLC. The only change appeared to be the SID. During climb the crew discovered that the loaded route is not correct and that the route assigned by ATC requires significantly more fuel. An unplanned fuel stop was made.

Narrative: Departing from MCO; we received out initial Delivery Clearance (DCL) which was the MCCOY 1 as filed; which we accepted. Our aircraft was unable to print clearances. Shortly before departure; we received an amended DCL message. When we accepted and loaded this; the only change was to the SID to the Orlando 1 departure. After departure while in contact with Jacksonville Center controller; we were advised of a re-route followed by a full route clearance. The way we initially discovered that the route we were flying and the route ATC thought we were flying were different was when Jacksonville Center cleared us to a fix that was not on our loaded route. When we clarified this; we then were given the full route re-route.This re-route was so large that the fuel on board was not sufficient for arrival with adequate reserves. After a lengthy period of negotiating with several subsequent ATC sectors and also speaking with Dispatch and the ATC Desk; we made the decision to divert for fuel. An uneventful diversion and continuation to destination followed.The main reason for this report is to shed light on what I feel is a gap in the current DCL system. In my view; there are only two possible reasons for what occurred. Either we didn't properly accept and execute the revised DCL or we did and there was some sort of glitch where only the SID and not the route was loaded. I don't feel the first scenario is the correct one as I watched the First Officer accept and load the DCL clearance. In addition; the SID was changed in the FMC following this; so obviously the 'load' prompt was selected. The concern with either one of these scenarios is that there is apparently no system in place to assure both ATC and the pilots that the most current clearance is loaded in the FMC. If we hadn't properly loaded the revised clearance; ATC needs to know that; and if we did properly load it and there was a glitch that only loaded the new SID but not the route; ATC needs that information too. There doesn't seem to be a feedback system that ensures this.

Data retrieved from NASA's ASRS site 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.

Attributes
ACN	1374229
Time
Date	201607
Local Time Of Day	1201-1800
Place
Locale Reference	ZJX.ARTCC
State Reference	FL
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Climb
Flight Plan	IFR
Person 1
Function	Captain Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	Pilot Flying First Officer
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	ATC Issue All Types Deviation - Procedural Published Material / Policy Deviation - Procedural Clearance

B757 flight crew reported being issued a reroute just prior to departure via cpdlc. The only change appeared to be the SID. During climb the crew discovered that the loaded route is not correct and that the route assigned by ATC requires significantly more fuel. An unplanned fuel stop was made.