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Altitude overshot during climb in B737-800 during misuse of the autoplt by the first officer in training 20 mi northwest of atl, GA.
| Attributes | |
| ACN | 517230 |
| Time | |
| Date | 200107 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : a80.tracon |
| State Reference | GA |
| Altitude | msl bound lower : 10000 msl bound upper : 10500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737-800 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain instruction : instructor observation : company check pilot oversight : pic |
| Qualification | pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 190 flight time total : 14000 flight time type : 400 |
| ASRS Report | 517230 |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : company policies non adherence : clearance other anomaly other |
| Resolutory Action | controller : issued advisory controller : issued new clearance flight crew : returned to assigned altitude flight crew : overrode automation |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
I was the line check airman conducting an IOE. The first officer was flying the aircraft air carrier X flight jul/mon/O1 departing atl. We had a clearance to 10000 ft. On climb out, at approximately 9500 ft, the first officer engaged the autoplt to level the aircraft. Just as it entered the altitude acquire mode, the aircraft flew through 10000 ft. I punched off the autoplt and pushed the aircraft over to return to 10000 ft. The aircraft reached 10500 ft before we returned to 10000 ft. Atl departure control questioned us on our altitude, then cleared us to 14000 ft. I gave an altitude callout at 9000 ft prior to level. However, the aircraft was light weight and climbing rapidly prior to autoplt engagement. I should have caught the autoplt mode change quicker and leveled sooner. It was a question of conducting training, monitoring and a misunderstanding of use of the autoplt. We had TCASII on and I observed no other acfts. There was no loss of aircraft separation. Better monitoring of the first officer on my part would have avoided the altitude excursion.
Original NASA ASRS Text
Title: ALT OVERSHOT DURING CLB IN B737-800 DURING MISUSE OF THE AUTOPLT BY THE FO IN TRAINING 20 MI NW OF ATL, GA.
Narrative: I WAS THE LINE CHK AIRMAN CONDUCTING AN IOE. THE FO WAS FLYING THE ACFT ACR X FLT JUL/MON/O1 DEPARTING ATL. WE HAD A CLRNC TO 10000 FT. ON CLBOUT, AT APPROX 9500 FT, THE FO ENGAGED THE AUTOPLT TO LEVEL THE ACFT. JUST AS IT ENTERED THE ALT ACQUIRE MODE, THE ACFT FLEW THROUGH 10000 FT. I PUNCHED OFF THE AUTOPLT AND PUSHED THE ACFT OVER TO RETURN TO 10000 FT. THE ACFT REACHED 10500 FT BEFORE WE RETURNED TO 10000 FT. ATL DEP CTL QUESTIONED US ON OUR ALT, THEN CLRED US TO 14000 FT. I GAVE AN ALT CALLOUT AT 9000 FT PRIOR TO LEVEL. HOWEVER, THE ACFT WAS LIGHT WT AND CLBING RAPIDLY PRIOR TO AUTOPLT ENGAGEMENT. I SHOULD HAVE CAUGHT THE AUTOPLT MODE CHANGE QUICKER AND LEVELED SOONER. IT WAS A QUESTION OF CONDUCTING TRAINING, MONITORING AND A MISUNDERSTANDING OF USE OF THE AUTOPLT. WE HAD TCASII ON AND I OBSERVED NO OTHER ACFTS. THERE WAS NO LOSS OF ACFT SEPARATION. BETTER MONITORING OF THE FO ON MY PART WOULD HAVE AVOIDED THE ALT EXCURSION.
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.