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Pvd approach questions altitude of B737 flight crew, who determines a wrong set altimeter, which causes a 1000 ft overshot.
| Attributes | |
| ACN | 570892 |
| Time | |
| Date | 200301 |
| Day | Thu |
| Place | |
| Locale Reference | airport : pvd.airport |
| State Reference | RI |
| Altitude | msl bound lower : 4200 msl bound upper : 5000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : pvd.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | descent : approach |
| 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 : 11000 flight time type : 5000 |
| ASRS Report | 570892 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : clearance non adherence : published procedure |
| Independent Detector | atc equipment other atc equipment : radar aircraft equipment other aircraft equipment : altimeter other controllera |
| Resolutory Action | controller : issued advisory flight crew : returned to assigned altitude flight crew : became reoriented |
| Consequence | faa : investigated faa : reviewed incident with flight crew other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Weather |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Flying into a low pressure area, we were descending into pvd. The ATIS was reporting clear skies with an altimeter of 29.31 inches. At FL180, we set our altimeters from 29.92 to 30.31, with a clearance to level off at 5000 ft. Just as we leveled off, pvd approach called us and asked us our altitude, we were about 800 ft low and reset altimeters and leveled off at 5000 ft. No traffic or any problems with separation of other aircraft. Upon landing, called pvd tower and talked with them. They said there were no problems, and thanked me for calling. Contributing factors were, flying into low pressure area altimeter settings are very easy to roll in incorrectly, better xchk would be an added help, verify altitude setting and bring to attention unusual low settings, so both pilots are correct.
Original NASA ASRS Text
Title: PVD APCH QUESTIONS ALT OF B737 FLT CREW, WHO DETERMINES A WRONG SET ALTIMETER, WHICH CAUSES A 1000 FT OVERSHOT.
Narrative: FLYING INTO A LOW PRESSURE AREA, WE WERE DSNDING INTO PVD. THE ATIS WAS RPTING CLR SKIES WITH AN ALTIMETER OF 29.31 INCHES. AT FL180, WE SET OUR ALTIMETERS FROM 29.92 TO 30.31, WITH A CLRNC TO LEVEL OFF AT 5000 FT. JUST AS WE LEVELED OFF, PVD APCH CALLED US AND ASKED US OUR ALT, WE WERE ABOUT 800 FT LOW AND RESET ALTIMETERS AND LEVELED OFF AT 5000 FT. NO TFC OR ANY PROBS WITH SEPARATION OF OTHER ACFT. UPON LNDG, CALLED PVD TWR AND TALKED WITH THEM. THEY SAID THERE WERE NO PROBS, AND THANKED ME FOR CALLING. CONTRIBUTING FACTORS WERE, FLYING INTO LOW PRESSURE AREA ALTIMETER SETTINGS ARE VERY EASY TO ROLL IN INCORRECTLY, BETTER XCHK WOULD BE AN ADDED HELP, VERIFY ALT SETTING AND BRING TO ATTN UNUSUAL LOW SETTINGS, SO BOTH PLTS ARE CORRECT.
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.