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First officer of a B727 overshot assigned altitude in preparation for an approach resulting in a loss of separation with another reported aircraft.
| Attributes | |
| ACN | 378350 |
| Time | |
| Date | 199708 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : mem |
| State Reference | TN |
| Altitude | msl bound lower : 2700 msl bound upper : 3000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : mem |
| Operator | common carrier : air carrier |
| Make Model Name | B727 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach descent other |
| Route In Use | approach : visual arrival other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | other : unknown |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 50 flight time total : 13000 flight time type : 218 |
| ASRS Report | 378350 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 4500 flight time type : 250 |
| ASRS Report | 378550 |
| Events | |
| Anomaly | altitude deviation : overshoot conflict : airborne less severe non adherence : clearance non adherence : required legal separation |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Approach control advised us to expect runway 18L. Then they said to expect vector for runway 9. However, the localizer was out and would we accept a visual approach. The first officer was flying the aircraft using the autoplt. Approach cleared us to descend to 3000 ft and advised us we had traffic on our nose at 2500 ft. While looking for the traffic, in the haze, I confirmed the new altitude with the first officer. However, he allowed the aircraft to descend below 3000 ft, I caught it at 2700 ft. Approach called and said, 'air carrier X I need you at 3000 ft.' we acknowledged the call and said we were correcting back to 3000 ft. The first officer didn't select altitude select which would have stopped the descent at 3000 ft. Another factor was the visual approach to runway 9 in limited visibility without a VASI or ILS. It would have been better to continue to runway 18L.
Original NASA ASRS Text
Title: FO OF A B727 OVERSHOT ASSIGNED ALT IN PREPARATION FOR AN APCH RESULTING IN A LOSS OF SEPARATION WITH ANOTHER RPTED ACFT.
Narrative: APCH CTL ADVISED US TO EXPECT RWY 18L. THEN THEY SAID TO EXPECT VECTOR FOR RWY 9. HOWEVER, THE LOC WAS OUT AND WOULD WE ACCEPT A VISUAL APCH. THE FO WAS FLYING THE ACFT USING THE AUTOPLT. APCH CLRED US TO DSND TO 3000 FT AND ADVISED US WE HAD TFC ON OUR NOSE AT 2500 FT. WHILE LOOKING FOR THE TFC, IN THE HAZE, I CONFIRMED THE NEW ALT WITH THE FO. HOWEVER, HE ALLOWED THE ACFT TO DSND BELOW 3000 FT, I CAUGHT IT AT 2700 FT. APCH CALLED AND SAID, 'ACR X I NEED YOU AT 3000 FT.' WE ACKNOWLEDGED THE CALL AND SAID WE WERE CORRECTING BACK TO 3000 FT. THE FO DIDN'T SELECT ALT SELECT WHICH WOULD HAVE STOPPED THE DSCNT AT 3000 FT. ANOTHER FACTOR WAS THE VISUAL APCH TO RWY 9 IN LIMITED VISIBILITY WITHOUT A VASI OR ILS. IT WOULD HAVE BEEN BETTER TO CONTINUE TO RWY 18L.
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.