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A dispatcher noted that his carrier's jac commercial airport page states that a minimum mu friction of .30 (good) is required for landing. However; the B757 requires a 'medium' mu or greater. Reporter states the mu information is misleading.
| Attributes | |
| ACN | 872759 |
| Time | |
| Date | 201001 |
| Local Time Of Day | 1201-1800 |
| Aircraft 1 | |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Landing |
| Flight Plan | IFR |
| Person 1 | |
| Function | Dispatcher |
| Events | |
| Anomaly | Deviation - Procedural Published Material / Policy Ground Event / Encounter Other / Unknown |
Narrative:
The commercial chart page for jac indicates 'landing with any runway mu friction reading less than .30 is not authorized.' this statement however is more applicable to A320 operations into jac. The .30 mu is at the lower end of 'good' (.30-.35) braking action. The B-757 however requires braking action of 'good' at most all typical operating weights into jac based on the 757 afm landing distance table and the gross weight land data function.
Original NASA ASRS Text
Title: A Dispatcher noted that his Carrier's JAC Commercial Airport page states that a minimum MU friction of .30 (Good) is required for landing. However; the B757 requires a 'Medium' MU or greater. Reporter states the MU information is misleading.
Narrative: The Commercial Chart page for JAC indicates 'Landing with any runway MU friction reading less than .30 is not authorized.' This statement however is more applicable to A320 operations into JAC. The .30 MU is at the lower end of 'GOOD' (.30-.35) braking action. The B-757 however requires braking action of 'GOOD' at most all typical operating weights into JAC based on the 757 AFM landing distance table and the Gross Weight Land Data function.
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.