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Flight crew departing vhhh in FMS equipped aircraft have track deviation when they modify the legs page of their original cleared SID rather than install the departure to which they were subsequently assigned.
| Attributes | |
| ACN | 622236 |
| Time | |
| Date | 200304 |
| Day | Fri |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : vhhh.airport |
| State Reference | FO |
| Altitude | msl single value : 5000 |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : vhhh.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Route In Use | departure sid : ocean1e |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Experience | flight time last 90 days : 150 flight time total : 18000 flight time type : 800 |
| ASRS Report | 622236 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | non adherence : published procedure non adherence : clearance other spatial deviation |
| Independent Detector | other flight crewa other flight crewb |
| Resolutory Action | flight crew : returned to intended or assigned course |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Navigational Facility Aircraft |
| Primary Problem | Flight Crew Human Performance |
Narrative:
After takeoff as we approached porpa, the aircraft flight director directed us to turn about 2 mi short of porpa. During taxi out, our clearance was changed from ocean 1A to ocean 1E. This change was made by changing flight director to bream the second fix. The change was reviewed by the captain and was verified as ok. Unknown to us, this method of changing the fix now made porpa a lead turn fix instead of an overfly fix.
Original NASA ASRS Text
Title: FLT CREW DEPARTING VHHH IN FMS EQUIPPED ACFT HAVE TRACK DEV WHEN THEY MODIFY THE LEGS PAGE OF THEIR ORIGINAL CLRED SID RATHER THAN INSTALL THE DEP TO WHICH THEY WERE SUBSEQUENTLY ASSIGNED.
Narrative: AFTER TKOF AS WE APCHED PORPA, THE ACFT FLT DIRECTOR DIRECTED US TO TURN ABOUT 2 MI SHORT OF PORPA. DURING TAXI OUT, OUR CLRNC WAS CHANGED FROM OCEAN 1A TO OCEAN 1E. THIS CHANGE WAS MADE BY CHANGING FLT DIRECTOR TO BREAM THE SECOND FIX. THE CHANGE WAS REVIEWED BY THE CAPT AND WAS VERIFIED AS OK. UNKNOWN TO US, THIS METHOD OF CHANGING THE FIX NOW MADE PORPA A LEAD TURN FIX INSTEAD OF AN OVERFLY FIX.
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.