|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||0601 To 1200|
|Locale Reference||atc facility : sjt|
|Altitude||msl bound lower : 2500|
msl bound upper : 6000
|Controlling Facilities||tracon : sjt|
tower : iah
|Make Model Name||Small Transport, Low Wing, 2 Turboprop Eng|
|Flight Phase||descent : approach|
|Function||flight crew : single pilot|
|Qualification||pilot : atp|
pilot : instrument
|Experience||flight time last 90 days : 59|
flight time total : 3091
flight time type : 77
|Affiliation||government : faa|
|Function||controller : approach|
|Qualification||controller : radar|
|Anomaly||altitude deviation : excursion from assigned altitude|
non adherence : clearance
|Independent Detector||other controllera|
|Consequence||faa : reviewed incident with flight crew|
|Primary Problem||Flight Crew Human Performance|
|Air Traffic Incident||Pilot Deviation|
I was conducting an IFR flight from austin, tx, to san angelo, tx. Ft worth center handed me off to san angelo approach (non radar) and I was instructed to descend to 6000' MSL, intercept the 10 DME arc, and arc around to intercept the sjt 055 degree. This I did, but I descended to the altitudes as depicted on the approach. As I approached the sjt VOR on the 055 degree at 2500' MSL, I told approach where I was (right and altitude). I was told that I had not been cleared for the approach but to continue the approach anyway. I landed on runway 21 west/O incident. I was asked to call the tower, which I did. ATC informed me they were working another aircraft for the NDB approach for runway 3. The other aircraft was making their procedure turn outbnd while I was crossing the VOR. ATC wanted to impress upon me the potentially dangerous situation that had occurred. I agreed with him. ATC said they could file a report on the incident, but they would not.
Original NASA ASRS Text
Title: GOVT ACFT DESCENDS BELOW ASSIGNED ALT ON DME ARC APCH.
Narrative: I WAS CONDUCTING AN IFR FLT FROM AUSTIN, TX, TO SAN ANGELO, TX. FT WORTH CTR HANDED ME OFF TO SAN ANGELO APCH (NON RADAR) AND I WAS INSTRUCTED TO DSND TO 6000' MSL, INTERCEPT THE 10 DME ARC, AND ARC AROUND TO INTERCEPT THE SJT 055 DEG. THIS I DID, BUT I DSNDED TO THE ALTS AS DEPICTED ON THE APCH. AS I APCHED THE SJT VOR ON THE 055 DEG AT 2500' MSL, I TOLD APCH WHERE I WAS (R AND ALT). I WAS TOLD THAT I HAD NOT BEEN CLRED FOR THE APCH BUT TO CONTINUE THE APCH ANYWAY. I LANDED ON RWY 21 W/O INCIDENT. I WAS ASKED TO CALL THE TWR, WHICH I DID. ATC INFORMED ME THEY WERE WORKING ANOTHER ACFT FOR THE NDB APCH FOR RWY 3. THE OTHER ACFT WAS MAKING THEIR PROC TURN OUTBND WHILE I WAS XING THE VOR. ATC WANTED TO IMPRESS UPON ME THE POTENTIALLY DANGEROUS SITUATION THAT HAD OCCURRED. I AGREED WITH HIM. ATC SAID THEY COULD FILE A RPT ON THE INCIDENT, BUT THEY WOULD NOT.
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.