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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Flight crew departs assigned altitude prior to receiving clearance for a visual approach.
| Attributes | |
| ACN | 323285 |
| Time | |
| Date | 199512 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : boi |
| State Reference | ID |
| Altitude | msl bound lower : 4500 msl bound upper : 6000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : boi |
| Operator | common carrier : air carrier |
| Make Model Name | B727-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach descent other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 120 flight time total : 9000 flight time type : 1200 |
| ASRS Report | 323285 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 30 flight time total : 2500 flight time type : 30 |
| ASRS Report | 323598 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : clearance |
| Independent Detector | other flight crewa |
| Resolutory Action | controller : issued new clearance flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
On approach to runway 28L at boi, we were cleared to 6000 ft and asked to report airport in sight. I had a new first officer with some problems flying the aircraft. ATC gave us a heading of 310 degrees to intercept the localizer. My workload was extremely heavy due to the first officer's weakness, checklist, set up for approach, etc. The approach plate calls for an altitude of 5000 ft inside 9 DME. The so in an attempt to be helpful said we're good to 5000 ft after we hit 9 DME. The first officer started down and I absently minded reset the altitude alert to 5000 ft. Passing approximately 4500 ft I realized the mistake, told ATC we had the runway and were cleared for the visual. Factors: fatigue, this was the end of a week of backside of the clock flying. Stress, a new and weak first officer released from training to the line too early.
Original NASA ASRS Text
Title: FLC DEPARTS ASSIGNED ALT PRIOR TO RECEIVING CLRNC FOR A VISUAL APCH.
Narrative: ON APCH TO RWY 28L AT BOI, WE WERE CLRED TO 6000 FT AND ASKED TO RPT ARPT IN SIGHT. I HAD A NEW FO WITH SOME PROBS FLYING THE ACFT. ATC GAVE US A HDG OF 310 DEGS TO INTERCEPT THE LOC. MY WORKLOAD WAS EXTREMELY HVY DUE TO THE FO'S WEAKNESS, CHKLIST, SET UP FOR APCH, ETC. THE APCH PLATE CALLS FOR AN ALT OF 5000 FT INSIDE 9 DME. THE SO IN AN ATTEMPT TO BE HELPFUL SAID WE'RE GOOD TO 5000 FT AFTER WE HIT 9 DME. THE FO STARTED DOWN AND I ABSENTLY MINDED RESET THE ALT ALERT TO 5000 FT. PASSING APPROX 4500 FT I REALIZED THE MISTAKE, TOLD ATC WE HAD THE RWY AND WERE CLRED FOR THE VISUAL. FACTORS: FATIGUE, THIS WAS THE END OF A WK OF BACKSIDE OF THE CLOCK FLYING. STRESS, A NEW AND WEAK FO RELEASED FROM TRAINING TO THE LINE TOO EARLY.
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.