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|
Attributes | |
ACN | 709756 |
Time | |
Date | 200609 |
Local Time Of Day | 0601 To 1200 |
Place | |
Locale Reference | navaid : odf.vortac |
State Reference | GA |
Altitude | msl single value : 32000 |
Environment | |
Flight Conditions | VMC |
Light | Daylight |
Aircraft 1 | |
Controlling Facilities | artcc : ztl.artcc |
Operator | common carrier : air carrier |
Make Model Name | Regional Jet CL65 Undifferentiated or Other Model |
Operating Under FAR Part | Part 121 |
Navigation In Use | other |
Flight Phase | cruise : holding |
Route In Use | arrival : holding pattern |
Flight Plan | IFR |
Person 1 | |
Affiliation | company : air carrier |
Function | flight crew : captain oversight : pic |
Qualification | pilot : multi engine pilot : instrument pilot : cfi pilot : commercial pilot : atp |
Experience | flight time last 90 days : 100 flight time total : 4500 flight time type : 1000 |
ASRS Report | 709756 |
Person 2 | |
Affiliation | company : air carrier |
Function | flight crew : first officer |
Events | |
Anomaly | non adherence : clearance non adherence : published procedure other spatial deviation |
Independent Detector | other controllera |
Resolutory Action | flight crew : returned to intended or assigned course flight crew : became reoriented |
Supplementary | |
Problem Areas | Aircraft Flight Crew Human Performance |
Primary Problem | Flight Crew Human Performance |
Narrative:
ATC instructed crew to hold at odf as published. First officer was PF; he entered odf in the collins FMS; the FMS acknowledged the fix and the proper radial to hold on was automatically in the database. I verified the radial and the first officer executed the FMS. Over the fix the aircraft turned right for a standard holding pattern when l-hand turns were published. ATC notified crew of incorrect turn and it was corrected. I believe this event was caused by the crew thinking that since the FMS knew we were on the falcon arrival; and since the hold is published on the arrival; the FMS therefore knows what the published hold is just as it knows the published hold on a missed approach. This appears to be incorrect. Although the FMS knows the correct hold for missed approachs; it apparently does not know the published holds on the arrival. When we chose the fix to hold at; the FMS simply created a hold there with the inbound course to that fix as the holding course; which happened to be the published holding course and gave us the false judgement of the FMS knowing the published holding on the arrival. And since the FMS was actually creating a hold from scratch; it automatically gave it standard right turns; not the published left turns.
Original NASA ASRS Text
Title: A CL65 ENTERED HOLD AT ODF VORTAC USING STANDARD R-HAND PATTERN CONTRARY TO THE L-HAND PATTERN THAT WAS PUBLISHED.
Narrative: ATC INSTRUCTED CREW TO HOLD AT ODF AS PUBLISHED. FO WAS PF; HE ENTERED ODF IN THE COLLINS FMS; THE FMS ACKNOWLEDGED THE FIX AND THE PROPER RADIAL TO HOLD ON WAS AUTOMATICALLY IN THE DATABASE. I VERIFIED THE RADIAL AND THE FO EXECUTED THE FMS. OVER THE FIX THE ACFT TURNED R FOR A STANDARD HOLDING PATTERN WHEN L-HAND TURNS WERE PUBLISHED. ATC NOTIFIED CREW OF INCORRECT TURN AND IT WAS CORRECTED. I BELIEVE THIS EVENT WAS CAUSED BY THE CREW THINKING THAT SINCE THE FMS KNEW WE WERE ON THE FALCON ARR; AND SINCE THE HOLD IS PUBLISHED ON THE ARR; THE FMS THEREFORE KNOWS WHAT THE PUBLISHED HOLD IS JUST AS IT KNOWS THE PUBLISHED HOLD ON A MISSED APCH. THIS APPEARS TO BE INCORRECT. ALTHOUGH THE FMS KNOWS THE CORRECT HOLD FOR MISSED APCHS; IT APPARENTLY DOES NOT KNOW THE PUBLISHED HOLDS ON THE ARR. WHEN WE CHOSE THE FIX TO HOLD AT; THE FMS SIMPLY CREATED A HOLD THERE WITH THE INBOUND COURSE TO THAT FIX AS THE HOLDING COURSE; WHICH HAPPENED TO BE THE PUBLISHED HOLDING COURSE AND GAVE US THE FALSE JUDGEMENT OF THE FMS KNOWING THE PUBLISHED HOLDING ON THE ARR. AND SINCE THE FMS WAS ACTUALLY CREATING A HOLD FROM SCRATCH; IT AUTOMATICALLY GAVE IT STANDARD R TURNS; NOT THE PUBLISHED L TURNS.
Data retrieved from NASA's ASRS site as of January 2009 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.