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Part 135 sabre 60 overshot descent clearance altitude while crew members were searching for airport. Under FAA investigation.
| Attributes | |
| ACN | 320509 |
| Time | |
| Date | 199511 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : vwv airport : tol |
| State Reference | OH |
| Altitude | msl bound lower : 7300 msl bound upper : 8000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : tol tower : gso |
| Operator | common carrier : air taxi |
| Make Model Name | Sabre 60 |
| Operating Under FAR Part | Part 135 |
| Flight Phase | descent 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 taxi |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 90 flight time total : 10000 flight time type : 90 |
| ASRS Report | 320509 |
| Person 2 | |
| Affiliation | company : air taxi |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 100 flight time total : 5000 flight time type : 150 |
| ASRS Report | 320524 |
| Events | |
| Anomaly | altitude deviation : overshoot conflict : airborne less severe non adherence : clearance other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course |
| Consequence | faa : reviewed incident with flight crew faa : investigated other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Descended through assigned altitude by 700 ft. Immediately corrected back to altitude in visual conditions looking for airport. PF should have continued flying aircraft while PNF looked outside. Callback conversation with reporter revealed the following information: reporter states that the conflict warning system was activated and that the FAA is investigating a traffic conflict. Reporter (captain) also states that during conversation with ATC afterwards, he was not informed of the serious nature of this incident. The sabre 60 cockpit is noisy and the altitude alerter was not heard by the crew members. Recognition of the altitude deviation was by the captain (PNF) and the first officer (PF) who was correcting when ATC intervened. Supplemental information from acn 320524: I was assigned 8000 ft. While looking for the field, I descended 700 ft below the assigned altitude.
Original NASA ASRS Text
Title: PART 135 SABRE 60 OVERSHOT DSCNT CLRNC ALT WHILE CREW MEMBERS WERE SEARCHING FOR ARPT. UNDER FAA INVESTIGATION.
Narrative: DSNDED THROUGH ASSIGNED ALT BY 700 FT. IMMEDIATELY CORRECTED BACK TO ALT IN VISUAL CONDITIONS LOOKING FOR ARPT. PF SHOULD HAVE CONTINUED FLYING ACFT WHILE PNF LOOKED OUTSIDE. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATES THAT THE CONFLICT WARNING SYS WAS ACTIVATED AND THAT THE FAA IS INVESTIGATING A TFC CONFLICT. RPTR (CAPT) ALSO STATES THAT DURING CONVERSATION WITH ATC AFTERWARDS, HE WAS NOT INFORMED OF THE SERIOUS NATURE OF THIS INCIDENT. THE SABRE 60 COCKPIT IS NOISY AND THE ALT ALERTER WAS NOT HEARD BY THE CREW MEMBERS. RECOGNITION OF THE ALTDEV WAS BY THE CAPT (PNF) AND THE FO (PF) WHO WAS CORRECTING WHEN ATC INTERVENED. SUPPLEMENTAL INFO FROM ACN 320524: I WAS ASSIGNED 8000 FT. WHILE LOOKING FOR THE FIELD, I DSNDED 700 FT BELOW THE ASSIGNED ALT.
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.