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GA small aircraft altitude deviation excursion from clearance altitude. Aircraft on STAR started descent to MEA shown on transition without clearance.
| Attributes | |
| ACN | 103008 |
| Time | |
| Date | 198901 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : gup airport : phx |
| State Reference | NM |
| Altitude | msl bound lower : 16000 msl bound upper : 20000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zab |
| Operator | general aviation : personal |
| Make Model Name | Small Aircraft |
| Flight Phase | cruise other descent other |
| Route In Use | arrival star : star |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : instrument pilot : private |
| Experience | flight time last 90 days : 30 flight time total : 2500 flight time type : 500 |
| ASRS Report | 103008 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : clearance non adherence : published procedure |
| 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:
During a recent flight from denver to phoenix in jan/89, I was at FL200 on J102 west of alamosa, co. ZAB amended my clearance to cleared direct gallup, mogwi one arrival. (Copy of STAR attached.) there were no amendments issued at the time of the clearance. Upon reaching gallup I started a descent and asked center for the local altimeter setting. I was asked why I wished the altimeter setting, to which I replied that I was descending to 16000'. The controller said that I was not cleared to 16000' and to climb and maintain 20000'. As I reviewed the STAR I found no mention of variance of altitude other than what was printed on the procedure. I am concerned that there was a lack of communication relative to a clearance and a procedure that clearance requires.
Original NASA ASRS Text
Title: GA SMA ALT DEVIATION EXCURSION FROM CLRNC ALT. ACFT ON STAR STARTED DESCENT TO MEA SHOWN ON TRANSITION WITHOUT CLRNC.
Narrative: DURING A RECENT FLT FROM DENVER TO PHOENIX IN JAN/89, I WAS AT FL200 ON J102 W OF ALAMOSA, CO. ZAB AMENDED MY CLRNC TO CLRED DIRECT GALLUP, MOGWI ONE ARRIVAL. (COPY OF STAR ATTACHED.) THERE WERE NO AMENDMENTS ISSUED AT THE TIME OF THE CLRNC. UPON REACHING GALLUP I STARTED A DSCNT AND ASKED CENTER FOR THE LOCAL ALTIMETER SETTING. I WAS ASKED WHY I WISHED THE ALTIMETER SETTING, TO WHICH I REPLIED THAT I WAS DSNDING TO 16000'. THE CTLR SAID THAT I WAS NOT CLRED TO 16000' AND TO CLIMB AND MAINTAIN 20000'. AS I REVIEWED THE STAR I FOUND NO MENTION OF VARIANCE OF ALT OTHER THAN WHAT WAS PRINTED ON THE PROCEDURE. I AM CONCERNED THAT THERE WAS A LACK OF COMMUNICATION RELATIVE TO A CLRNC AND A PROCEDURE THAT CLRNC REQUIRES.
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.