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Flight cleared to 12000' MSL. Captain understood and repeated 12000'. First officer verbally confirmed 10000' and set 10000' in the altitude alerter captain did not correct the first officer who was flying and descended to 10000'.
| Attributes | |
| ACN | 168723 |
| Time | |
| Date | 199101 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : pit |
| State Reference | PA |
| Altitude | msl bound lower : 10000 msl bound upper : 12000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | cruise other descent other |
| Route In Use | arrival other enroute airway : zob |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial pilot : atp |
| Experience | flight time last 90 days : 190 flight time total : 5800 flight time type : 190 |
| ASRS Report | 168723 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : instrument pilot : commercial |
| Events | |
| Anomaly | altitude deviation : overshoot |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We leveled off at an intermediate altitude other than the one assigned. The cause was the PF misreading the radio call, hearing the altitude he expected to receive rather than the altitude actually assigned.
Original NASA ASRS Text
Title: FLT CLEARED TO 12000' MSL. CAPT UNDERSTOOD AND REPEATED 12000'. FO VERBALLY CONFIRMED 10000' AND SET 10000' IN THE ALT ALERTER CAPT DID NOT CORRECT THE FO WHO WAS FLYING AND DESCENDED TO 10000'.
Narrative: WE LEVELED OFF AT AN INTERMEDIATE ALT OTHER THAN THE ONE ASSIGNED. THE CAUSE WAS THE PF MISREADING THE RADIO CALL, HEARING THE ALT HE EXPECTED TO RECEIVE RATHER THAN THE ALT ACTUALLY ASSIGNED.
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.