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A B737-300 flight crew climbs from 2500 ft to 3000 ft when on an approach to ILS runway 24R after receiving a warning from their enhanced GPWS 20 mi east of lax, ca.
| Attributes | |
| ACN | 505050 |
| Time | |
| Date | 200103 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : lax.airport |
| State Reference | CA |
| Altitude | msl bound lower : 2500 msl bound upper : 3000 |
| Environment | |
| Flight Conditions | Marginal |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : sct.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | ils localizer & glide slope : 24r other |
| Flight Phase | descent : intermediate altitude |
| Route In Use | arrival : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 5300 flight time type : 1600 |
| ASRS Report | 505050 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial pilot : multi engine |
| Events | |
| Anomaly | airspace violation : exit non adherence : published procedure non adherence : far other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : egpws other flight crewa other flight crewb |
| Resolutory Action | flight crew : took precautionary avoidance action |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | Airspace Structure ATC Human Performance |
| Primary Problem | Airspace Structure |
Narrative:
VMC 3000 ft overcast, 3-5 mi visibility in haze. PF: first officer. PNF: captain. Aircraft on autoplt. Just after intercepting the ILS runway 24R final approach course at lax between denay intersection and merce intersection at 2500 ft MSL, we received a momentary egpws pull-up command. I told the copilot to climb while I ensured we were clear of terrain visually and with the egpws display. The warning ceased immediately and I notified ATC of our climb to 3000 ft for the terrain warning. ATC advised that the MVA in that area was 2500 ft and cleared us for the approach. The rest of the approach and landing were uneventful.
Original NASA ASRS Text
Title: A B737-300 FLC CLBS FROM 2500 FT TO 3000 FT WHEN ON AN APCH TO ILS RWY 24R AFTER RECEIVING A WARNING FROM THEIR ENHANCED GPWS 20 MI E OF LAX, CA.
Narrative: VMC 3000 FT OVCST, 3-5 MI VISIBILITY IN HAZE. PF: FO. PNF: CAPT. ACFT ON AUTOPLT. JUST AFTER INTERCEPTING THE ILS RWY 24R FINAL APCH COURSE AT LAX BTWN DENAY INTXN AND MERCE INTXN AT 2500 FT MSL, WE RECEIVED A MOMENTARY EGPWS PULL-UP COMMAND. I TOLD THE COPLT TO CLB WHILE I ENSURED WE WERE CLR OF TERRAIN VISUALLY AND WITH THE EGPWS DISPLAY. THE WARNING CEASED IMMEDIATELY AND I NOTIFIED ATC OF OUR CLB TO 3000 FT FOR THE TERRAIN WARNING. ATC ADVISED THAT THE MVA IN THAT AREA WAS 2500 FT AND CLRED US FOR THE APCH. THE REST OF THE APCH AND LNDG WERE UNEVENTFUL.
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.