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Approaching budde intersection for bur approach at 5000', flight crew received GPWS alert. Climbed to 6300' advised approach controller.
| Attributes | |
| ACN | 182642 |
| Time | |
| Date | 199106 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : bur |
| State Reference | CA |
| Altitude | msl bound lower : 5000 msl bound upper : 6300 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : bur |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | descent : approach descent other |
| Route In Use | arrival other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : commercial pilot : atp pilot : instrument |
| Experience | flight time last 90 days : 70 flight time total : 12000 flight time type : 2000 |
| ASRS Report | 182642 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial pilot : atp |
| Events | |
| Anomaly | other anomaly other other spatial deviation |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took evasive action none taken : anomaly accepted |
| Consequence | Other |
| Supplementary | |
| Air Traffic Incident | other |
Narrative:
Flight den-bur. Descent on lynxx 6 arrival to radar vectors, heading 180 degrees, 230 KTS. Cleared from 6000 to 5000' in solid cumulus overcast. Previous study showed MSA sector 6300' and minimum terrain clearance 5800' with mtc altitude of 7200' just northwest. At level-off at 5000', GPWS terrain warning received with radar altimeter indication rapidly decreasing below 2000' AGL. Procedures are very specific concerning GPWS alert while IMC (current company 'hot item'). As per SOP, immediate pitch rotation and maximum climb initiated until alert ceased. Level off occurred at 6300' MSL and ATC was notified. Approach control queried twice with confirmation of MVA of 5000'. Landing made west/O further incident. It should be noted that company procedures are so absolute concerning GPWS in IMC WX that approach control might consider delaying descent in that area when field IMC or cloud cover to east.
Original NASA ASRS Text
Title: APCHING BUDDE INTXN FOR BUR APCH AT 5000', FLT CREW RECEIVED GPWS ALERT. CLIMBED TO 6300' ADVISED APCH CTLR.
Narrative: FLT DEN-BUR. DSNT ON LYNXX 6 ARR TO RADAR VECTORS, HDG 180 DEGS, 230 KTS. CLRED FROM 6000 TO 5000' IN SOLID CUMULUS OVCST. PREVIOUS STUDY SHOWED MSA SECTOR 6300' AND MINIMUM TERRAIN CLRNC 5800' WITH MTC ALT OF 7200' JUST NW. AT LEVEL-OFF AT 5000', GPWS TERRAIN WARNING RECEIVED WITH RADAR ALTIMETER INDICATION RAPIDLY DECREASING BELOW 2000' AGL. PROCS ARE VERY SPECIFIC CONCERNING GPWS ALERT WHILE IMC (CURRENT COMPANY 'HOT ITEM'). AS PER SOP, IMMEDIATE PITCH ROTATION AND MAX CLB INITIATED UNTIL ALERT CEASED. LEVEL OFF OCCURRED AT 6300' MSL AND ATC WAS NOTIFIED. APCH CTL QUERIED TWICE WITH CONFIRMATION OF MVA OF 5000'. LNDG MADE W/O FURTHER INCIDENT. IT SHOULD BE NOTED THAT COMPANY PROCS ARE SO ABSOLUTE CONCERNING GPWS IN IMC WX THAT APCH CTL MIGHT CONSIDER DELAYING DSNT IN THAT AREA WHEN FIELD IMC OR CLOUD COVER TO E.
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.