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First officer of a cargo DC8-61 overshot assigned altitude when climbing due to misreading the altimeter and the captain was distraction by other tasks. When the captain noticed altitude overshot and directed the first officer to descend, ARTCC radar controller intervened to remind them of their assigned altitude.
| Attributes | |
| ACN | 422420 |
| Time | |
| Date | 199812 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : stl |
| State Reference | MO |
| Altitude | msl bound lower : 28000 msl bound upper : 28500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | DC-8 61 |
| Operating Under FAR Part | Part 121 |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : instrument |
| Experience | flight time last 90 days : 90 flight time total : 8675 flight time type : 2065 |
| ASRS Report | 422420 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial |
| Events | |
| Anomaly | altitude deviation : overshoot |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | other |
| Consequence | Other |
| Supplementary | |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We were cleared to climb from FL240 to FL280. A normal climb was initiated and the altitude alerter sounded as we passed FL270 and both pilots noted aloud that there was 1000 ft to go. However, as we neared FL280, the PF (first officer) incorrectly misread the altimeter and continued past the assigned altitude. I (captain) had allowed myself to be distraction as we neared FL280 and didn't notice we hadn't leveled off until we were nearing FL285. We immediately started descending back down to the assigned altitude of FL280 as center repeated over the radio that we were assigned FL280. Obviously, the lessons learned again were to not be distraction when approaching assigned altitudes and to back up the PF better. Also, just because the altitude alerter has sounded doesn't mean your constant attention is not continuously required.
Original NASA ASRS Text
Title: FO OF A CARGO DC8-61 OVERSHOT ASSIGNED ALT WHEN CLBING DUE TO MISREADING THE ALTIMETER AND THE CAPT WAS DISTR BY OTHER TASKS. WHEN THE CAPT NOTICED ALT OVERSHOT AND DIRECTED THE FO TO DSND, ARTCC RADAR CTLR INTERVENED TO REMIND THEM OF THEIR ASSIGNED ALT.
Narrative: WE WERE CLRED TO CLB FROM FL240 TO FL280. A NORMAL CLB WAS INITIATED AND THE ALT ALERTER SOUNDED AS WE PASSED FL270 AND BOTH PLTS NOTED ALOUD THAT THERE WAS 1000 FT TO GO. HOWEVER, AS WE NEARED FL280, THE PF (FO) INCORRECTLY MISREAD THE ALTIMETER AND CONTINUED PAST THE ASSIGNED ALT. I (CAPT) HAD ALLOWED MYSELF TO BE DISTR AS WE NEARED FL280 AND DIDN'T NOTICE WE HADN'T LEVELED OFF UNTIL WE WERE NEARING FL285. WE IMMEDIATELY STARTED DSNDING BACK DOWN TO THE ASSIGNED ALT OF FL280 AS CTR REPEATED OVER THE RADIO THAT WE WERE ASSIGNED FL280. OBVIOUSLY, THE LESSONS LEARNED AGAIN WERE TO NOT BE DISTR WHEN APCHING ASSIGNED ALTS AND TO BACK UP THE PF BETTER. ALSO, JUST BECAUSE THE ALT ALERTER HAS SOUNDED DOESN'T MEAN YOUR CONSTANT ATTN IS NOT CONTINUOUSLY REQUIRED.
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.