 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Cvg controller expressed concern regarding flight crew's non compliance with ATC issued crossing altitude during triple ILS simultaneous approach procedures.
| Attributes | |
| ACN | 795069 |
| Time | |
| Date | 200807 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : cvg.airport |
| State Reference | KY |
| Altitude | msl single value : 7000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : cvg.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | ils localizer & glide slope : 36c |
| Flight Phase | descent : approach |
| Route In Use | approach : instrument precision |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Experience | controller radar : 15 controller time certified in position1 : 6 |
| ASRS Report | 795069 |
| Events | |
| Anomaly | altitude deviation : crossing restriction not met non adherence : clearance |
| Independent Detector | other controllera |
| Resolutory Action | none taken : anomaly accepted |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
Narrative:
On jul/xa/08; I was working the 'high side' final position. We were using runway 36C/left/right. We had a big inbound push. WX was 05OVC with good visibility underneath. In this confign; we must have 3 finals; 3 local position in the tower and 3 monitors to run simultaneous triple ILS's. I worked about 15 aircraft. All of them; except for two; missed the crossing altitude as I stated (critr at or above 70). The GS crosses critr at about 6700 ft. This is a known problem; and one we idented as being needed to fix 10 months ago. No fix has been done. It took an operational error to bring this situation to light. Although today's operation didn't lead to any operrors; the FAA's inaction will cause others. It's not a matter of 'if;' but a matter of 'when.'
Original NASA ASRS Text
Title: CVG CTLR EXPRESSED CONCERN REGARDING FLT CREW'S NON COMPLIANCE WITH ATC ISSUED CROSSING ALT DURING TRIPLE ILS SIMULTANEOUS APCH PROCS.
Narrative: ON JUL/XA/08; I WAS WORKING THE 'HIGH SIDE' FINAL POS. WE WERE USING RWY 36C/L/R. WE HAD A BIG INBOUND PUSH. WX WAS 05OVC WITH GOOD VISIBILITY UNDERNEATH. IN THIS CONFIGN; WE MUST HAVE 3 FINALS; 3 LCL POS IN THE TWR AND 3 MONITORS TO RUN SIMULTANEOUS TRIPLE ILS'S. I WORKED ABOUT 15 ACFT. ALL OF THEM; EXCEPT FOR TWO; MISSED THE XING ALT AS I STATED (CRITR AT OR ABOVE 70). THE GS CROSSES CRITR AT ABOUT 6700 FT. THIS IS A KNOWN PROB; AND ONE WE IDENTED AS BEING NEEDED TO FIX 10 MONTHS AGO. NO FIX HAS BEEN DONE. IT TOOK AN OPERROR TO BRING THIS SITUATION TO LIGHT. ALTHOUGH TODAY'S OP DIDN'T LEAD TO ANY OPERRORS; THE FAA'S INACTION WILL CAUSE OTHERS. IT'S NOT A MATTER OF 'IF;' BUT A MATTER OF 'WHEN.'
Data retrieved from NASA's ASRS site as of May 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.