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A B757 first officer believes a one mile segment of J72 might have been a chart anomaly.
| Attributes | |
| ACN | 950061 |
| Time | |
| Date | 201105 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZOA.ARTCC |
| State Reference | CA |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Person 1 | |
| Function | First Officer |
| Events | |
| Anomaly | Deviation - Procedural Published Material / Policy |
Narrative:
[Our flight plan] included a segment from bld J72 bavpe J72 txo. While it seems that J72 just continues through bavpe there seems to be an anomaly that warrants attention. After bld VOR your route goes through pgs then mosbi then bavpe; dilco; and gup. The courses are 077 from pgs to mosbi then 085 to bavpe for only one (1) NM then returning back to a course of 079 to dilco. There seems to be an anomaly in the location of either mosbi or bavpe on J72 as there is only 1NM that separates them with a course change of 6-8 degrees. The FMS database shows this segment in plan view as a cross-course lighting bolt with no way of knowing how the aircraft will react. We were cleared direct to tcc prior to arriving at this point of J72 so we never actually experienced how the aircraft would react. The FMS database showed a course of 078-093-078 through this segment.
Original NASA ASRS Text
Title: A B757 First Officer believes a one mile segment of J72 might have been a chart anomaly.
Narrative: [Our flight plan] included a segment from BLD J72 BAVPE J72 TXO. While it seems that J72 just continues through BAVPE there seems to be an anomaly that warrants attention. After BLD VOR your route goes through PGS then MOSBI then BAVPE; DILCO; and GUP. The courses are 077 from PGS to MOSBI then 085 to BAVPE for only one (1) NM then returning back to a course of 079 to DILCO. There seems to be an anomaly in the location of either MOSBI or BAVPE on J72 as there is only 1NM that separates them with a course change of 6-8 degrees. The FMS database shows this segment in PLAN view as a cross-course lighting bolt with no way of knowing how the aircraft will react. We were cleared direct to TCC prior to arriving at this point of J72 so we never actually experienced how the aircraft would react. The FMS database showed a course of 078-093-078 through this segment.
Data retrieved from NASA's ASRS site as of April 2012 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.