While on approach to ord, a B737 flight crew is alerted of a microburst on final and executes a go around. On the second approach, advised of a microburst alert, the flight crew determines diversion is necessary due to fuel. First officer was concerned after being advised that ATC communication was left on for passenger monitoring.

Home

Browse by month

Random

Latest

About

Contact

Attributes
ACN	420010
Time
Date	199811
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : ord airport : ord
State Reference	IL
Altitude	msl bound lower : 700 msl bound upper : 2000
Environment
Flight Conditions	IMC
Light	Dusk
Aircraft 1
Controlling Facilities	tower : ord
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	descent : approach descent other
Route In Use	arrival other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : instrument pilot : cfi
Experience	flight time last 90 days : 210 flight time total : 6500 flight time type : 1300
ASRS Report	420010
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	inflight encounter : weather non adherence other other anomaly other
Independent Detector	atc equipment other atc equipment : unspecified
Resolutory Action	other other
Consequence	Other
Supplementary
Primary Problem	Weather
Air Traffic Incident	other
Situations
Navigational Aid	Unspecified

Narrative:

On approach to ord in gusty non convective conditions, winds 220 degrees, 45 KTS gusting to 55 KTS on approach to runway 22L at ord at approximately 700 ft AGL, received a microburst alert from ord tower. Missed approach, and came around for another try. Second try at approximately 2000 ft AGL, another microburst alert from tower. Now at minimum fuel to divert to make. Divert to mke was uneventful. After refueling at mke, received clearance to ord with assurance that everybody was getting in to ord. On approach to runway 22R at ord at approximately 1000 ft, another microburst alert from tower. Came around for another approach and successfully landed. After landing, flight attendants informed us that the ATC communications had been on the passenger entertainment system the whole time. As per our company's standard procedures, we forgot to turn it off and they never told us. Bad CRM between cockpit and flight attendants and passenger scared unnecessarily.

Original NASA ASRS Text

Title: WHILE ON APCH TO ORD, A B737 FLC IS ALERTED OF A MICROBURST ON FINAL AND EXECUTES A GAR. ON THE SECOND APCH, ADVISED OF A MICROBURST ALERT, THE FLC DETERMINES DIVERSION IS NECESSARY DUE TO FUEL. FO WAS CONCERNED AFTER BEING ADVISED THAT ATC COM WAS LEFT ON FOR PAX MONITORING.

Narrative: ON APCH TO ORD IN GUSTY NON CONVECTIVE CONDITIONS, WINDS 220 DEGS, 45 KTS GUSTING TO 55 KTS ON APCH TO RWY 22L AT ORD AT APPROX 700 FT AGL, RECEIVED A MICROBURST ALERT FROM ORD TWR. MISSED APCH, AND CAME AROUND FOR ANOTHER TRY. SECOND TRY AT APPROX 2000 FT AGL, ANOTHER MICROBURST ALERT FROM TWR. NOW AT MINIMUM FUEL TO DIVERT TO MAKE. DIVERT TO MKE WAS UNEVENTFUL. AFTER REFUELING AT MKE, RECEIVED CLRNC TO ORD WITH ASSURANCE THAT EVERYBODY WAS GETTING IN TO ORD. ON APCH TO RWY 22R AT ORD AT APPROX 1000 FT, ANOTHER MICROBURST ALERT FROM TWR. CAME AROUND FOR ANOTHER APCH AND SUCCESSFULLY LANDED. AFTER LNDG, FLT ATTENDANTS INFORMED US THAT THE ATC COMS HAD BEEN ON THE PAX ENTERTAINMENT SYS THE WHOLE TIME. AS PER OUR COMPANY'S STANDARD PROCS, WE FORGOT TO TURN IT OFF AND THEY NEVER TOLD US. BAD CRM BTWN COCKPIT AND FLT ATTENDANTS AND PAX SCARED UNNECESSARILY.

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.