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Flight crew of a B737 overshot descent altitude due to being distracted when reviewing assigned holding pattern entry.
| Attributes | |
| ACN | 367831 |
| Time | |
| Date | 199704 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : jvl |
| State Reference | IL |
| Altitude | msl bound lower : 23600 msl bound upper : 24000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zau |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent other |
| Route In Use | enroute : direct enroute airway : zau |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : commercial pilot : flight engineer |
| Experience | flight time last 90 days : 210 |
| ASRS Report | 367831 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 6000 flight time type : 1400 |
| ASRS Report | 368240 |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : clearance |
| Independent Detector | other controllera 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:
Our flight was north of jvl inbound for ord at FL250. We just received instructions to hold then further instructions to descend to FL240. The entry was being set up as well as discussions on fuel remaining/alternates when the altitude warning sounded at FL237. Corrective action to climb was immediately initiated. ZAU asked our altitude at which time we were back to FL240 and reported. They said they showed FL236 immediately followed by concurrence at FL240. Cockpit workload was high in IMC. Backing up the PF during leveloff did not occur.
Original NASA ASRS Text
Title: FLC OF A B737 OVERSHOT DSCNT ALT DUE TO BEING DISTRACTED WHEN REVIEWING ASSIGNED HOLDING PATTERN ENTRY.
Narrative: OUR FLT WAS N OF JVL INBOUND FOR ORD AT FL250. WE JUST RECEIVED INSTRUCTIONS TO HOLD THEN FURTHER INSTRUCTIONS TO DSND TO FL240. THE ENTRY WAS BEING SET UP AS WELL AS DISCUSSIONS ON FUEL REMAINING/ALTERNATES WHEN THE ALT WARNING SOUNDED AT FL237. CORRECTIVE ACTION TO CLB WAS IMMEDIATELY INITIATED. ZAU ASKED OUR ALT AT WHICH TIME WE WERE BACK TO FL240 AND RPTED. THEY SAID THEY SHOWED FL236 IMMEDIATELY FOLLOWED BY CONCURRENCE AT FL240. COCKPIT WORKLOAD WAS HIGH IN IMC. BACKING UP THE PF DURING LEVELOFF DID NOT OCCUR.
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.