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A DC9 skids off the end of runway 8L at atl airport onto the overrun. The rubber deposits on the end of reciprocal runway 26R were rain soaked and provided no traction for low speed braking.
| Attributes | |
| ACN | 403693 |
| Time | |
| Date | 199805 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : atl |
| State Reference | GA |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | landing other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 220 flight time total : 20000 |
| ASRS Report | 403693 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | inflight encounter : weather other anomaly other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course flight crew : regained aircraft control |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Weather |
| Air Traffic Incident | Pilot Deviation |
| Situations | |
| Airport | other physical facility |
Narrative:
During approach and landing at atlanta hartsfield airport aircraft encountered very heavy rain on touchdown and rollout experiencing severe hydroplaning. Reverse thrust not very effective. Very long rollout, as aircraft approached touchdown zone of reciprocal (runway 26R) (black concrete from lndgs) friction braking became nil, after rolling beyond touchdown zone for runway 26R (clean concrete) friction braking became effective, but not in time to stop aircraft from going onto overrun. Aircraft was taxied to gate with no damage to aircraft. A means of alerting pilots of water depth on runway would have been very helpful to flight crew in this incident. I would appreciate some in-depth data on the effects of hydroplaning and how rubber marks and oil affect friction braking when wet.
Original NASA ASRS Text
Title: A DC9 SKIDS OFF THE END OF RWY 8L AT ATL ARPT ONTO THE OVERRUN. THE RUBBER DEPOSITS ON THE END OF RECIPROCAL RWY 26R WERE RAIN SOAKED AND PROVIDED NO TRACTION FOR LOW SPD BRAKING.
Narrative: DURING APCH AND LNDG AT ATLANTA HARTSFIELD ARPT ACFT ENCOUNTERED VERY HVY RAIN ON TOUCHDOWN AND ROLLOUT EXPERIENCING SEVERE HYDROPLANING. REVERSE THRUST NOT VERY EFFECTIVE. VERY LONG ROLLOUT, AS ACFT APCHED TOUCHDOWN ZONE OF RECIPROCAL (RWY 26R) (BLACK CONCRETE FROM LNDGS) FRICTION BRAKING BECAME NIL, AFTER ROLLING BEYOND TOUCHDOWN ZONE FOR RWY 26R (CLEAN CONCRETE) FRICTION BRAKING BECAME EFFECTIVE, BUT NOT IN TIME TO STOP ACFT FROM GOING ONTO OVERRUN. ACFT WAS TAXIED TO GATE WITH NO DAMAGE TO ACFT. A MEANS OF ALERTING PLTS OF WATER DEPTH ON RWY WOULD HAVE BEEN VERY HELPFUL TO FLC IN THIS INCIDENT. I WOULD APPRECIATE SOME IN-DEPTH DATA ON THE EFFECTS OF HYDROPLANING AND HOW RUBBER MARKS AND OIL AFFECT FRICTION BRAKING WHEN WET.
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.