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Reporter experiences GPWS terrain warning during IMC vector to ILS at pdx. Facility representative told reporter terrain warnings are not uncommon in that area.
| Attributes | |
| ACN | 323666 |
| Time | |
| Date | 199512 |
| Day | Fri |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : pdx |
| State Reference | OR |
| Altitude | msl bound lower : 2700 msl bound upper : 3200 |
| Environment | |
| Flight Conditions | IMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : pdx tower : bos |
| Operator | common carrier : air carrier |
| Make Model Name | B737-400 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | descent : approach |
| Route In Use | arrival other enroute : 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 : 220 flight time total : 15000 flight time type : 2000 |
| ASRS Report | 323666 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Air Traffic Incident | other |
| Situations | |
| ATC Facility | procedure or policy : unspecified |
Narrative:
After flying the moxee 3 arrival we were on vectors southwest of pdx for an ILS to runway 10R. Heading 010 degrees (base leg) descending to 3000 ft, we were told to descend and maintain 2500 ft. At approximately 2700 ft we got a GPWS terrain warning. I immediately disconnected the autoplt and autothrottles and climbed to approximately 3200 ft. During this climb, approach gave us a turn to 070 degrees and told us to maintain 2500 ft till intercepting localizer, cleared approach. We reported the terrain warning and continued the approach. This whole thing was especially unnerving since we were already expecting an approach into forecast freezing rain, low level windshear, and winds gusting to 25 KTS. I called approach control after landing and was told that terrain warnings are not uncommon in the area where it happened to me. It seems to me that a GPWS terrain warning while on vectors to an ILS final at a major airport is a little more distraction than we need.
Original NASA ASRS Text
Title: RPTR EXPERIENCES GPWS TERRAIN WARNING DURING IMC VECTOR TO ILS AT PDX. FACILITY REPRESENTATIVE TOLD RPTR TERRAIN WARNINGS ARE NOT UNCOMMON IN THAT AREA.
Narrative: AFTER FLYING THE MOXEE 3 ARR WE WERE ON VECTORS SW OF PDX FOR AN ILS TO RWY 10R. HDG 010 DEGS (BASE LEG) DSNDING TO 3000 FT, WE WERE TOLD TO DSND AND MAINTAIN 2500 FT. AT APPROX 2700 FT WE GOT A GPWS TERRAIN WARNING. I IMMEDIATELY DISCONNECTED THE AUTOPLT AND AUTOTHROTTLES AND CLBED TO APPROX 3200 FT. DURING THIS CLB, APCH GAVE US A TURN TO 070 DEGS AND TOLD US TO MAINTAIN 2500 FT TILL INTERCEPTING LOC, CLRED APCH. WE RPTED THE TERRAIN WARNING AND CONTINUED THE APCH. THIS WHOLE THING WAS ESPECIALLY UNNERVING SINCE WE WERE ALREADY EXPECTING AN APCH INTO FORECAST FREEZING RAIN, LOW LEVEL WINDSHEAR, AND WINDS GUSTING TO 25 KTS. I CALLED APCH CTL AFTER LNDG AND WAS TOLD THAT TERRAIN WARNINGS ARE NOT UNCOMMON IN THE AREA WHERE IT HAPPENED TO ME. IT SEEMS TO ME THAT A GPWS TERRAIN WARNING WHILE ON VECTORS TO AN ILS FINAL AT A MAJOR ARPT IS A LITTLE MORE DISTR THAN WE NEED.
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.