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Flight crew of a cpr medium large transport forgot to reset altimeter during descent below FL180 resulting in overshooting assigned altitude.
| Attributes | |
| ACN | 323190 |
| Time | |
| Date | 199512 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : ewr |
| State Reference | NJ |
| Altitude | msl bound lower : 13000 msl bound upper : 14000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | Other Other |
| Flight Phase | descent other |
| Route In Use | arrival other arrival star : star enroute airway : zny |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | other other : other pilot : atp pilot : cfi pilot : instrument pilot : commercial |
| Experience | flight time last 90 days : 150 flight time total : 2200 flight time type : 25 |
| ASRS Report | 323190 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : commercial pilot : instrument pilot : atp |
| Events | |
| Anomaly | altitude deviation : undershoot non adherence : clearance other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We were descending to 13000 ft, through FL180, I reset both altimeters and completed the checklist items as the PF was conversing with a passenger. We leveled at 13000 ft momentarily, and I heard the autothrottle and autoplt tone disengage. The PF was climbing to 14000 ft, apparently thinking his altimeter was not properly set. I queried him and got no clear response. He mentioned something about thinking the altimeter was not set correctly. Somehow, the #1 altimeter was not correctly adjusted. I reset it to the proper setting and nothing else was said. Autoplt #1 and autothrottle #1 were reengaged and the flight continued normally. Possible distractions: passenger in cockpit area, not aurally confirming the checklist at FL180. No query by ATC was made.
Original NASA ASRS Text
Title: FLC OF A CPR MLG FORGOT TO RESET ALTIMETER DURING DSCNT BELOW FL180 RESULTING IN OVERSHOOTING ASSIGNED ALT.
Narrative: WE WERE DSNDING TO 13000 FT, THROUGH FL180, I RESET BOTH ALTIMETERS AND COMPLETED THE CHKLIST ITEMS AS THE PF WAS CONVERSING WITH A PAX. WE LEVELED AT 13000 FT MOMENTARILY, AND I HEARD THE AUTOTHROTTLE AND AUTOPLT TONE DISENGAGE. THE PF WAS CLBING TO 14000 FT, APPARENTLY THINKING HIS ALTIMETER WAS NOT PROPERLY SET. I QUERIED HIM AND GOT NO CLR RESPONSE. HE MENTIONED SOMETHING ABOUT THINKING THE ALTIMETER WAS NOT SET CORRECTLY. SOMEHOW, THE #1 ALTIMETER WAS NOT CORRECTLY ADJUSTED. I RESET IT TO THE PROPER SETTING AND NOTHING ELSE WAS SAID. AUTOPLT #1 AND AUTOTHROTTLE #1 WERE REENGAGED AND THE FLT CONTINUED NORMALLY. POSSIBLE DISTRACTIONS: PAX IN COCKPIT AREA, NOT AURALLY CONFIRMING THE CHKLIST AT FL180. NO QUERY BY ATC WAS MADE.
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.