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RNAV equipped B737 loses RNAV SID transition waypoints when the runway is changed prior to takeoff.
| Attributes | |
| ACN | 673798 |
| Time | |
| Date | 200509 |
| Place | |
| Locale Reference | intersection : nobly |
| Altitude | msl single value : 13000 |
| Environment | |
| Flight Conditions | VMC VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zfw.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737-400 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other Other |
| Route In Use | departure sid : nobly |
| Flight Plan | IFR |
| Person 1 | |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : instrument pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 75 flight time total : 5600 flight time type : 344 |
| ASRS Report | 673798 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 50 flight time total : 15000 flight time type : 500 |
| ASRS Report | 673481 |
| Events | |
| Anomaly | aircraft equipment problem : critical non adherence : published procedure non adherence : clearance other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance controller : issued advisory flight crew : returned to intended or assigned course |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | Aircraft Flight Crew Human Performance Chart Or Publication Airport |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
The captain received the ATC clearance. The captain entered the nobly 2 RNAV departure and our route of flight into the FMC. I checked the SID and route of flight. I advised the captain that the cobug and ortro intersections were not in the FMC. The captain stated that the lit transition was included in the SID. Dfw ground had us contact 'queue control' to advise of our FMC selected runway; heading and first fix. Dfw 'queue' control and us agreed with my FMC reading. Takeoff; climb; flying the nobly 2 SID was uneventful until east of nobly intersection. We were handed off to fort worth center. A fort worth center controller asked if we were showing on course. I stated that we were on course. The controller stated that he showed us north of course heading direct to little rock. I agreed that we were heading direct to lit. The controller asked if we were proceeding to 'cobug' or 'ortro.' I checked and verified neither 'cobug' or 'ortro' were on our RNAV SID in the FMC. We were then cleared direct to ortro lit as filed. The rest of the flight was uneventful. The controller stated that this particular transition has had several problems due to programming errors. I believe the problem was due to constant interruptions in the cockpit when discussing the lit transition on the nobly 2 RNAV departure with the captain. I should have been more assertive with the captain when discussing the SID and transition. I should have rechked the transition SID prior to pushback.supplemental information from acn 673481: I programmed the computer for the nobly 2 departure from dfw. Had put in a northern takeoff but changed it to a southern takeoff during taxi.
Original NASA ASRS Text
Title: RNAV EQUIPPED B737 LOSES RNAV SID TRANSITION WAYPOINTS WHEN THE RWY IS CHANGED PRIOR TO TKOF.
Narrative: THE CAPT RECEIVED THE ATC CLRNC. THE CAPT ENTERED THE NOBLY 2 RNAV DEP AND OUR RTE OF FLT INTO THE FMC. I CHECKED THE SID AND RTE OF FLT. I ADVISED THE CAPT THAT THE COBUG AND ORTRO INTERSECTIONS WERE NOT IN THE FMC. THE CAPT STATED THAT THE LIT TRANSITION WAS INCLUDED IN THE SID. DFW GND HAD US CONTACT 'QUEUE CTL' TO ADVISE OF OUR FMC SELECTED RWY; HDG AND FIRST FIX. DFW 'QUEUE' CTL AND US AGREED WITH MY FMC READING. TKOF; CLB; FLYING THE NOBLY 2 SID WAS UNEVENTFUL UNTIL E OF NOBLY INTERSECTION. WE WERE HANDED OFF TO FORT WORTH CTR. A FORT WORTH CTR CTLR ASKED IF WE WERE SHOWING ON COURSE. I STATED THAT WE WERE ON COURSE. THE CTLR STATED THAT HE SHOWED US N OF COURSE HEADING DIRECT TO LITTLE ROCK. I AGREED THAT WE WERE HEADING DIRECT TO LIT. THE CTLR ASKED IF WE WERE PROCEEDING TO 'COBUG' OR 'ORTRO.' I CHECKED AND VERIFIED NEITHER 'COBUG' OR 'ORTRO' WERE ON OUR RNAV SID IN THE FMC. WE WERE THEN CLRED DIRECT TO ORTRO LIT AS FILED. THE REST OF THE FLT WAS UNEVENTFUL. THE CTLR STATED THAT THIS PARTICULAR TRANSITION HAS HAD SEVERAL PROBS DUE TO PROGRAMMING ERRORS. I BELIEVE THE PROB WAS DUE TO CONSTANT INTERRUPTIONS IN THE COCKPIT WHEN DISCUSSING THE LIT TRANSITION ON THE NOBLY 2 RNAV DEP WITH THE CAPT. I SHOULD HAVE BEEN MORE ASSERTIVE WITH THE CAPT WHEN DISCUSSING THE SID AND TRANSITION. I SHOULD HAVE RECHKED THE TRANSITION SID PRIOR TO PUSHBACK.SUPPLEMENTAL INFO FROM ACN 673481: I PROGRAMMED THE COMPUTER FOR THE NOBLY 2 DEP FROM DFW. HAD PUT IN A NORTHERN TAKEOFF BUT CHANGED IT TO A SOUTHERN TAKEOFF DURING TAXI.
Data retrieved from NASA's ASRS site as of January 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.