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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Light transport commuter was told to maintain 2500 ft until established on the approach but the captain thought he heard 1600 ft. Approach controller caught mistake when they had descended to 1800 ft.
| Attributes | |
| ACN | 358840 |
| Time | |
| Date | 199701 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : azo |
| State Reference | MI |
| Altitude | msl bound lower : 1800 msl bound upper : 2500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : azo tower : atl |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Route In Use | approach : straight in |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : cfi pilot : commercial pilot : instrument |
| Experience | flight time last 90 days : 40 flight time total : 1200 flight time type : 40 |
| ASRS Report | 358840 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 250 flight time total : 6800 flight time type : 4800 |
| ASRS Report | 358173 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : clearance |
| Independent Detector | other controllera |
| 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:
I was the PNF and read back approach clearance, including 'maintain 2500 ft until established.' the captain understood 'maintain 1600 ft until established' and commenced a descent. Azo approach called us as we descended through 1800 ft and we climbed back to 2500 ft. We were in VMC conditions so we climbed and completed a non eventful approach and landing.
Original NASA ASRS Text
Title: LTT COMMUTER WAS TOLD TO MAINTAIN 2500 FT UNTIL ESTABLISHED ON THE APCH BUT THE CAPT THOUGHT HE HEARD 1600 FT. APCH CTLR CAUGHT MISTAKE WHEN THEY HAD DSNDED TO 1800 FT.
Narrative: I WAS THE PNF AND READ BACK APCH CLRNC, INCLUDING 'MAINTAIN 2500 FT UNTIL ESTABLISHED.' THE CAPT UNDERSTOOD 'MAINTAIN 1600 FT UNTIL ESTABLISHED' AND COMMENCED A DSCNT. AZO APCH CALLED US AS WE DSNDED THROUGH 1800 FT AND WE CLBED BACK TO 2500 FT. WE WERE IN VMC CONDITIONS SO WE CLBED AND COMPLETED A NON EVENTFUL APCH AND LNDG.
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.