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Controller gave air carrier medium large transport flight crew wrong altitude during step climb to high altitude.
| Attributes | |
| ACN | 94344 |
| Time | |
| Date | 198809 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : fra |
| State Reference | CA |
| Altitude | msl bound lower : 23000 msl bound upper : 24000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zoa tower : teb |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | climbout : intermediate altitude cruise other |
| Route In Use | departure sid : sid |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 8000 flight time type : 5500 |
| ASRS Report | 94344 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Experience | flight time last 90 days : 300 flight time total : 6000 flight time type : 850 |
| ASRS Report | 94412 |
| Events | |
| Anomaly | altitude deviation : overshoot other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance none taken : detected after the fact |
| Consequence | faa : reviewed incident with flight crew faa : investigated |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Deviation |
Narrative:
We were flying the frogo 5 departure out of smf en route to lax. We were given several altitude clrncs. As I recall they were 13000', 17000', FL190, FL210, FL220, FL230, FL240. Each time the first officer read back the altitude and set it in the altitude alert system. As we were leveling at FL240 the controller asked what our altitude was. We said FL240. He said we were only cleared to FL230. I said we both heard, 'cleared to FL240, expect higher in 1 min.' after landing lax I called ZOA and was told it was their problem and it had been resolved. I related this story to another pilot in dispatch. That pilot dropped me a note saying that later that day they heard a similar problem with another airliner in the same area at FL240. There is a lot of e-w and n-s traffic in that area climbing and descending with potential for big problems.
Original NASA ASRS Text
Title: CTLR GAVE ACR MLG FLT CREW WRONG ALT DURING STEP CLIMB TO HIGH ALT.
Narrative: WE WERE FLYING THE FROGO 5 DEP OUT OF SMF ENRTE TO LAX. WE WERE GIVEN SEVERAL ALT CLRNCS. AS I RECALL THEY WERE 13000', 17000', FL190, FL210, FL220, FL230, FL240. EACH TIME THE F/O READ BACK THE ALT AND SET IT IN THE ALT ALERT SYS. AS WE WERE LEVELING AT FL240 THE CTLR ASKED WHAT OUR ALT WAS. WE SAID FL240. HE SAID WE WERE ONLY CLRED TO FL230. I SAID WE BOTH HEARD, 'CLRED TO FL240, EXPECT HIGHER IN 1 MIN.' AFTER LNDG LAX I CALLED ZOA AND WAS TOLD IT WAS THEIR PROB AND IT HAD BEEN RESOLVED. I RELATED THIS STORY TO ANOTHER PLT IN DISPATCH. THAT PLT DROPPED ME A NOTE SAYING THAT LATER THAT DAY THEY HEARD A SIMILAR PROB WITH ANOTHER AIRLINER IN THE SAME AREA AT FL240. THERE IS A LOT OF E-W AND N-S TFC IN THAT AREA CLBING AND DSNDING WITH POTENTIAL FOR BIG PROBS.
Data retrieved from NASA's ASRS site as of August 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.