|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||1201 To 1800|
|Locale Reference||airport : sfo|
|Altitude||agl bound lower : 0|
agl bound upper : 0
|Controlling Facilities||tower : mdw|
|Operator||common carrier : air carrier|
|Make Model Name||Widebody, Low Wing, 3 Turbojet Eng|
|Navigation In Use||Other|
|Flight Phase||ground : preflight|
ground : parked
|Affiliation||company : air carrier|
|Function||flight crew : captain|
oversight : pic
|Qualification||pilot : atp|
|Experience||flight time last 90 days : 140|
flight time total : 16428
flight time type : 1389
|Affiliation||government : faa|
|Function||controller : ground|
|Qualification||controller : non radar|
|Anomaly||other anomaly other|
|Air Traffic Incident||other|
|ATC Facility||procedure or policy : unspecified|
Trip departed gate originally with an allowable maximum gross for 93 degrees F. When abeam taxiway K, ground control announced a new ATIS temperature 104 degrees. The temperature and rate of temperature change were both extreme. Trip returned to the gate as the new temperature put trip about 19000# over gross. The temperature continued up to 105 degrees. Dispatch off headed to accommodate a temperature of 96 degrees F. Three hours later the ATIS was broadcasting 101 degrees F as the temperature, while the WX bureau was giving the temperature as 96 degrees F, according to dispatch. Company rep called the tower and the ATIS was updated to the current temperature, and trip departed for ewr. This situation points out an inconsistency in monitoring field temperature for ATIS update. Had the rising temperature not been reported I would not have the opportunity to write this report. The failure to monitor and report the down trend of the airport temperature had an economic impact. Do the established procedures dealing with ATIS updates preclude error of this nature?
Original NASA ASRS Text
Title: ACR WDB HAD TO DELAY DEP DUE TO HIGH GND TEMP.
Narrative: TRIP DEPARTED GATE ORIGINALLY WITH AN ALLOWABLE MAX GROSS FOR 93 DEGS F. WHEN ABEAM TXWY K, GND CTL ANNOUNCED A NEW ATIS TEMP 104 DEGS. THE TEMP AND RATE OF TEMP CHANGE WERE BOTH EXTREME. TRIP RETURNED TO THE GATE AS THE NEW TEMP PUT TRIP ABOUT 19000# OVER GROSS. THE TEMP CONTINUED UP TO 105 DEGS. DISPATCH OFF HEADED TO ACCOMMODATE A TEMP OF 96 DEGS F. THREE HRS LATER THE ATIS WAS BROADCASTING 101 DEGS F AS THE TEMP, WHILE THE WX BUREAU WAS GIVING THE TEMP AS 96 DEGS F, ACCORDING TO DISPATCH. COMPANY REP CALLED THE TWR AND THE ATIS WAS UPDATED TO THE CURRENT TEMP, AND TRIP DEPARTED FOR EWR. THIS SITUATION POINTS OUT AN INCONSISTENCY IN MONITORING FIELD TEMP FOR ATIS UPDATE. HAD THE RISING TEMP NOT BEEN RPTED I WOULD NOT HAVE THE OPPORTUNITY TO WRITE THIS RPT. THE FAILURE TO MONITOR AND RPT THE DOWN TREND OF THE ARPT TEMP HAD AN ECONOMIC IMPACT. DO THE ESTABLISHED PROCS DEALING WITH ATIS UPDATES PRECLUDE ERROR OF THIS NATURE?
Data retrieved from NASA's ASRS site as of August 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.