 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
An air carrier first officer reported that he and his captain followed the proper altitude change procedure, but were accused by T75 of an altitude overshoot.
| Attributes | |
| ACN | 517630 |
| Time | |
| Date | 200107 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : stl.airport |
| State Reference | MO |
| Altitude | msl bound lower : 5000 msl bound upper : 7000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | descent : intermediate altitude |
| Route In Use | arrival star : rivers two |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time total : 8000 |
| ASRS Report | 517630 |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : published procedure non adherence : company policies non adherence : far non adherence : clearance |
| Resolutory Action | controller : issued new clearance |
| Supplementary | |
| Problem Areas | ATC Human Performance Flight Crew Human Performance |
| Primary Problem | Ambiguous |
Narrative:
On the river 2 arrival going into stl, our assigned altitude was 15000 ft. It is customary to be assigned 7000 ft by ATC. This time, however, we were given a descent to 5000 ft. It was strange, but the captain and I both heard the clearance. We ran through our cockpit altitude procedures, and set and armed 5000 ft, and verified the altitude amongst each other. We then started down. It was not busy that day. I thought to myself that the controller wanted us down. Perhaps we were first. Just before leveloff, the controller asked what our altitude was. I responded 5000 ft. The controller responded we were assigned 7000 ft. A strange feeling, but there was no doubt in my mind we were assigned 5000 ft, so I felt comfortable with the situation. The controller then stated, maintain 5000 ft and then shortly cleared us for a visual approach to runway 30L. No other events or conflicts or comments.
Original NASA ASRS Text
Title: AN ACR FO RPTED THAT HE AND HIS CAPT FOLLOWED THE PROPER ALT CHANGE PROC, BUT WERE ACCUSED BY T75 OF AN ALT OVERSHOOT.
Narrative: ON THE RIVER 2 ARR GOING INTO STL, OUR ASSIGNED ALT WAS 15000 FT. IT IS CUSTOMARY TO BE ASSIGNED 7000 FT BY ATC. THIS TIME, HOWEVER, WE WERE GIVEN A DSCNT TO 5000 FT. IT WAS STRANGE, BUT THE CAPT AND I BOTH HEARD THE CLRNC. WE RAN THROUGH OUR COCKPIT ALT PROCS, AND SET AND ARMED 5000 FT, AND VERIFIED THE ALT AMONGST EACH OTHER. WE THEN STARTED DOWN. IT WAS NOT BUSY THAT DAY. I THOUGHT TO MYSELF THAT THE CTLR WANTED US DOWN. PERHAPS WE WERE FIRST. JUST BEFORE LEVELOFF, THE CTLR ASKED WHAT OUR ALT WAS. I RESPONDED 5000 FT. THE CTLR RESPONDED WE WERE ASSIGNED 7000 FT. A STRANGE FEELING, BUT THERE WAS NO DOUBT IN MY MIND WE WERE ASSIGNED 5000 FT, SO I FELT COMFORTABLE WITH THE SIT. THE CTLR THEN STATED, MAINTAIN 5000 FT AND THEN SHORTLY CLRED US FOR A VISUAL APCH TO RWY 30L. NO OTHER EVENTS OR CONFLICTS OR COMMENTS.
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.