 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
ARTCC controller allows an ATR42 aircraft to descend into approach control airspace without a point out or handoff. The ATR42 aircraft was allegedly encountering ice conditions.
| Attributes | |
| ACN | 321852 |
| Time | |
| Date | 199511 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : gij airport : sbn |
| State Reference | IN |
| Altitude | msl bound lower : 8000 msl bound upper : 8000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : sbn tower : dal |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Transport, High Wing, 2 Turboprop Eng |
| Flight Phase | cruise other |
| Route In Use | enroute airway : sbn |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Experience | controller radar : 13 flight time total : 300 |
| ASRS Report | 321852 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Events | |
| Anomaly | inflight encounter : weather non adherence : published procedure other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | none taken : detected after the fact other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Deviation Inter Facility Coordination Failure |
Narrative:
While working approach control at sbn ATCT I noticed a mode C altitude indicating level at 8000 ft within my area of responsibility. I contacted the adjoining center sector (boone sector, ZAU ARTCC) and asked if they were talking to the aircraft. There had been no coordination. ZAU controller advised it was an IFR ATR42 that had encountered ice and had to come down. Although it had entered sbn approach airspace without coordination there was no conflict with other aircraft. Since the crash of an ATR (about 35 mi southwest of this incident) due to ice accumulation, both pilots and controllers tend to handle normal operations of these aircraft as if they were emergencys. We are well into the 'ice' season in northern indiana. If they still require 'special, urgent handling' perhaps they should be restr totally from flight in or near potential ice accumulation.
Original NASA ASRS Text
Title: ARTCC CTLR ALLOWS AN ATR42 ACFT TO DSND INTO APCH CTL AIRSPACE WITHOUT A POINT OUT OR HANDOFF. THE ATR42 ACFT WAS ALLEGEDLY ENCOUNTERING ICE CONDITIONS.
Narrative: WHILE WORKING APCH CTL AT SBN ATCT I NOTICED A MODE C ALT INDICATING LEVEL AT 8000 FT WITHIN MY AREA OF RESPONSIBILITY. I CONTACTED THE ADJOINING CTR SECTOR (BOONE SECTOR, ZAU ARTCC) AND ASKED IF THEY WERE TALKING TO THE ACFT. THERE HAD BEEN NO COORD. ZAU CTLR ADVISED IT WAS AN IFR ATR42 THAT HAD ENCOUNTERED ICE AND HAD TO COME DOWN. ALTHOUGH IT HAD ENTERED SBN APCH AIRSPACE WITHOUT COORD THERE WAS NO CONFLICT WITH OTHER ACFT. SINCE THE CRASH OF AN ATR (ABOUT 35 MI SW OF THIS INCIDENT) DUE TO ICE ACCUMULATION, BOTH PLTS AND CTLRS TEND TO HANDLE NORMAL OPS OF THESE ACFT AS IF THEY WERE EMERS. WE ARE WELL INTO THE 'ICE' SEASON IN NORTHERN INDIANA. IF THEY STILL REQUIRE 'SPECIAL, URGENT HANDLING' PERHAPS THEY SHOULD BE RESTR TOTALLY FROM FLT IN OR NEAR POTENTIAL ICE ACCUMULATION.
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.