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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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This air carrier flight crew received a GPWS warning, 'terrain,' while descending over terrain reaching to a height of approximately 4000 ft. The flight crew properly executed their evasive action and then continued the approach. The MVA in this area is 6000 ft.
| Attributes | |
| ACN | 329505 |
| Time | |
| Date | 199602 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : ipl airport : san |
| State Reference | CA |
| Altitude | msl bound lower : 6500 msl bound upper : 6500 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : san |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Super 80 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | descent : approach |
| Route In Use | arrival other arrival star : star |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 329505 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | other anomaly other other spatial deviation |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | controller : issued new clearance flight crew : took evasive action |
| Consequence | Other |
| Supplementary | |
| Air Traffic Incident | other |
| Situations | |
| Airport | other physical facility |
Narrative:
While on the baret 4 arrival to san, just west of pillo we were cleared to descend from 10000 ft MSL to 6000 ft MSL fly a heading of 240 degrees, and intercept the runway 27 localizer. As we were starting to level off at 6500 ft MSL we got a terrain, terrain and pull up GPWS warnings. We were IMC and the captain immediately pushed the throttles to maximum, hit the toga button, punched off the autoplt and rotated the jet to a 25 degree climb. As we leveled at 10000 ft MSL we informed socal approach what we did and why. She stated that the MVA for that area was 6000 ft MSL. We turned to join the localizer, descended, and made an uneventful landing. No explanation for the GPWS warnings.
Original NASA ASRS Text
Title: THIS ACR FLC RECEIVED A GPWS WARNING, 'TERRAIN,' WHILE DSNDING OVER TERRAIN REACHING TO A HEIGHT OF APPROX 4000 FT. THE FLC PROPERLY EXECUTED THEIR EVASIVE ACTION AND THEN CONTINUED THE APCH. THE MVA IN THIS AREA IS 6000 FT.
Narrative: WHILE ON THE BARET 4 ARR TO SAN, JUST W OF PILLO WE WERE CLRED TO DSND FROM 10000 FT MSL TO 6000 FT MSL FLY A HEADING OF 240 DEGS, AND INTERCEPT THE RWY 27 LOC. AS WE WERE STARTING TO LEVEL OFF AT 6500 FT MSL WE GOT A TERRAIN, TERRAIN AND PULL UP GPWS WARNINGS. WE WERE IMC AND THE CAPT IMMEDIATELY PUSHED THE THROTTLES TO MAX, HIT THE TOGA BUTTON, PUNCHED OFF THE AUTOPLT AND ROTATED THE JET TO A 25 DEG CLB. AS WE LEVELED AT 10000 FT MSL WE INFORMED SOCAL APCH WHAT WE DID AND WHY. SHE STATED THAT THE MVA FOR THAT AREA WAS 6000 FT MSL. WE TURNED TO JOIN THE LOC, DSNDED, AND MADE AN UNEVENTFUL LNDG. NO EXPLANATION FOR THE GPWS WARNINGS.
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.