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An air carrier captain reported confusion in identifying mdw taxiways M and west on his nos charts.
| Attributes | |
| ACN | 883209 |
| Time | |
| Date | 201004 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | MDW.Airport |
| State Reference | IL |
| Aircraft 1 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Taxi |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Deviation - Procedural Published Material / Policy |
Narrative:
I became momentarily confused while referencing the taxi diagram in our nos charts for mdw. Taxiways west and M are separated by runway 13C/31C but the letters marking these taxiways are oriented in different directions: M is in a north-up orientation and west is in an east-up orientation. The west flares out a bit wider at the top than the M does at the base but one has to look closely to discern the difference. The signs marking the taxiways are clear; however. This taxiway diagram needs to be edited for the next issuance of the approach charts so that it is clear at a glance which taxiway is M and which is west.
Original NASA ASRS Text
Title: An air carrier Captain reported confusion in identifying MDW taxiways M and W on his NOS charts.
Narrative: I became momentarily confused while referencing the taxi diagram in our NOS charts for MDW. Taxiways W and M are separated by Runway 13C/31C but the letters marking these taxiways are oriented in different directions: M is in a north-up orientation and W is in an east-up orientation. The W flares out a bit wider at the top than the M does at the base but one has to look closely to discern the difference. The signs marking the taxiways are clear; however. This taxiway diagram needs to be edited for the next issuance of the approach charts so that it is clear at a glance which taxiway is M and which is W.
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.