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Flight crew claim that while in descent at 3000 ft after receiving and acknowledging a descent clearance from 5000 ft to 2500 ft, the controller says the altitude was 3500 ft and instructs them to climb to that altitude.
| Attributes | |
| ACN | 393110 |
| Time | |
| Date | 199802 |
| Day | Sat |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : lax |
| State Reference | CA |
| Altitude | msl bound lower : 2500 msl bound upper : 3000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : lax |
| Operator | common carrier : air carrier |
| Make Model Name | Xingu EMB-121 All Series |
| Operating Under FAR Part | Part 135 |
| Navigation In Use | Other |
| Flight Phase | descent other |
| Route In Use | arrival other enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 225 flight time total : 9400 flight time type : 1200 |
| ASRS Report | 393110 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 240 flight time total : 4050 flight time type : 1550 |
| ASRS Report | 393689 |
| Events | |
| Anomaly | inflight encounter : weather inflight encounter other non adherence : published procedure other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Deviation Pilot Deviation |
Narrative:
I was the PF. We were on a radar vector for runway 25L ILS. Controller descended us from 5000 ft. First officer was working radios. We both heard 'descend and maintain 2500 ft.' first officer replied, 'descend and maintain 2500 ft.' as per SOP, I put 2500 ft in the altitude alerter and replied '2500 ft.' while descending through 3000 ft, controller climbed us to 3500 ft and said the assigned altitude was 3500 ft. He then cleared us for the approach. WX was a contributing factor. There was unexpected heavy rain, turbulence, ice and windshear. Prior to this event we had been given 3 different sets of holding instructions and ATC was struggling to deal with all the arrs.
Original NASA ASRS Text
Title: FLC CLAIM THAT WHILE IN DSCNT AT 3000 FT AFTER RECEIVING AND ACKNOWLEDGING A DSCNT CLRNC FROM 5000 FT TO 2500 FT, THE CTLR SAYS THE ALT WAS 3500 FT AND INSTRUCTS THEM TO CLB TO THAT ALT.
Narrative: I WAS THE PF. WE WERE ON A RADAR VECTOR FOR RWY 25L ILS. CTLR DSNDED US FROM 5000 FT. FO WAS WORKING RADIOS. WE BOTH HEARD 'DSND AND MAINTAIN 2500 FT.' FO REPLIED, 'DSND AND MAINTAIN 2500 FT.' AS PER SOP, I PUT 2500 FT IN THE ALT ALERTER AND REPLIED '2500 FT.' WHILE DSNDING THROUGH 3000 FT, CTLR CLBED US TO 3500 FT AND SAID THE ASSIGNED ALT WAS 3500 FT. HE THEN CLRED US FOR THE APCH. WX WAS A CONTRIBUTING FACTOR. THERE WAS UNEXPECTED HVY RAIN, TURB, ICE AND WINDSHEAR. PRIOR TO THIS EVENT WE HAD BEEN GIVEN 3 DIFFERENT SETS OF HOLDING INSTRUCTIONS AND ATC WAS STRUGGLING TO DEAL WITH ALL THE ARRS.
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.