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A B757 crew prematurely set altimeters to 29 pt 92 at 16500 ft when cleared to 17000 ft, causing an overshoot of assigned altitude.
| Attributes | |
| ACN | 544099 |
| Time | |
| Date | 200204 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : zny.artcc |
| State Reference | NY |
| Altitude | msl bound lower : 17000 msl bound upper : 17400 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zny.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | climbout : vacating altitude |
| Route In Use | departure : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : instrument pilot : multi engine |
| Experience | flight time last 90 days : 210 flight time total : 9500 flight time type : 2300 |
| ASRS Report | 544099 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : published procedure |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : returned to assigned altitude |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Climbing to intermediate altitude of 17000 ft, climb checklist done at 16500 ft with altimeter reset to 29.92 from 30.53. At 17000 ft, first officer realized 29.92 had been set for a 17000 ft leveloff called for altitude to be returned to 30.53 and captain immediately began a correction leveloff. Aircraft momentarily ballooned up to 17400 ft before climb was corrected back to 17000 ft. Early climb checklist caused problem probably from bad habit. PNF checked MCP leveloff altitude after completion of climb checklist. Good habit developed from prior experience.
Original NASA ASRS Text
Title: A B757 CREW PREMATURELY SET ALTIMETERS TO 29 PT 92 AT 16500 FT WHEN CLRED TO 17000 FT, CAUSING AN OVERSHOOT OF ASSIGNED ALT.
Narrative: CLBING TO INTERMEDIATE ALT OF 17000 FT, CLB CHKLIST DONE AT 16500 FT WITH ALTIMETER RESET TO 29.92 FROM 30.53. AT 17000 FT, FO REALIZED 29.92 HAD BEEN SET FOR A 17000 FT LEVELOFF CALLED FOR ALT TO BE RETURNED TO 30.53 AND CAPT IMMEDIATELY BEGAN A CORRECTION LEVELOFF. ACFT MOMENTARILY BALLOONED UP TO 17400 FT BEFORE CLB WAS CORRECTED BACK TO 17000 FT. EARLY CLB CHKLIST CAUSED PROB PROBABLY FROM BAD HABIT. PNF CHKED MCP LEVELOFF ALT AFTER COMPLETION OF CLB CHKLIST. GOOD HABIT DEVELOPED FROM PRIOR EXPERIENCE.
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.