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After previously receiving and reading back a descent clearance with a crossing restr, a pilot is confused as to why ATC questions his altitude during the descent claiming the clearance was not issued.
| Attributes | |
| ACN | 507440 |
| Time | |
| Date | 200104 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : srq.airport |
| State Reference | FL |
| Altitude | msl single value : 6000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : zzz.tower |
| Operator | general aviation : personal |
| Make Model Name | PA-60 602 Aerostar |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Qualification | pilot : private pilot : multi engine pilot : atp |
| Experience | flight time last 90 days : 25 flight time total : 3600 flight time type : 1100 |
| ASRS Report | 507440 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : clearance non adherence : published procedure |
| Resolutory Action | controller : issued new clearance |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance |
| Primary Problem | ATC Human Performance |
Narrative:
En route vrb to srq cruising at 6000 ft, ZMA cleared us to cross 25 DME east of srq at and maintain 2500 ft. That's what I heard and read back. I put 2500 ft in the altitude preselect as a reference, which is how I handled the next assigned altitude. Mins later, I said 'center, aircraft X out of 6000 ft for 2500 ft.' on the descent, going through 2800 ft, center said 'aircraft X, say altitude.' I said '2800 ft for 2500 ft.' center said 'last assigned was 4000 ft, tell you what, climb to 3000 ft and contact st petersburg approach.' I said 'thank you.' he came back with 'don't worry about it.' after landing and thinking about what happened, I'm not 100% sure -- was it mis-stated or mis-heard? How can I know for sure? To help prevent this problem, I have already ordered a new intercom with recording capabilities replacing the one I have without recording. This will allow me to hear all clrncs a second time and should correct this kind of problem.
Original NASA ASRS Text
Title: AFTER PREVIOUSLY RECEIVING AND READING BACK A DSCNT CLRNC WITH A XING RESTR, A PLT IS CONFUSED AS TO WHY ATC QUESTIONS HIS ALT DURING THE DSCNT CLAIMING THE CLRNC WAS NOT ISSUED.
Narrative: ENRTE VRB TO SRQ CRUISING AT 6000 FT, ZMA CLRED US TO CROSS 25 DME E OF SRQ AT AND MAINTAIN 2500 FT. THAT'S WHAT I HEARD AND READ BACK. I PUT 2500 FT IN THE ALT PRESELECT AS A REF, WHICH IS HOW I HANDLED THE NEXT ASSIGNED ALT. MINS LATER, I SAID 'CTR, ACFT X OUT OF 6000 FT FOR 2500 FT.' ON THE DSCNT, GOING THROUGH 2800 FT, CTR SAID 'ACFT X, SAY ALT.' I SAID '2800 FT FOR 2500 FT.' CTR SAID 'LAST ASSIGNED WAS 4000 FT, TELL YOU WHAT, CLB TO 3000 FT AND CONTACT ST PETERSBURG APCH.' I SAID 'THANK YOU.' HE CAME BACK WITH 'DON'T WORRY ABOUT IT.' AFTER LNDG AND THINKING ABOUT WHAT HAPPENED, I'M NOT 100% SURE -- WAS IT MIS-STATED OR MIS-HEARD? HOW CAN I KNOW FOR SURE? TO HELP PREVENT THIS PROB, I HAVE ALREADY ORDERED A NEW INTERCOM WITH RECORDING CAPABILITIES REPLACING THE ONE I HAVE WITHOUT RECORDING. THIS WILL ALLOW ME TO HEAR ALL CLRNCS A SECOND TIME AND SHOULD CORRECT THIS KIND OF PROB.
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.