|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||0601 To 1200|
|Locale Reference||atc facility : sdz|
|Altitude||msl bound lower : 11000|
msl bound upper : 23000
|Controlling Facilities||artcc : zdc|
|Navigation In Use||other ndb|
|Affiliation||government : faa|
|Function||controller : radar|
|Qualification||controller : radar|
|Experience||controller radar : 20|
|Anomaly||other anomaly other|
|Independent Detector||other controllera|
other flight crewa
|Resolutory Action||none taken : unable|
|Consequence||faa : investigated|
|Primary Problem||ATC Human Performance|
|Air Traffic Incident||other|
|ATC Facility||other physical facility|
Frequency protection of 134.2 and the process suggested for correcting this problem are both unsatisfactory. Aircraft above 11000' near the sandhill (nc) VORTAC receive xmissions from other aircraft working ATC facs in tn. Often these aircraft report hearing xmissions from mem ARTCC. This condition has been documented both on the day and eve shifts, and can result in aircraft not receiving timely air traffic clrncs needed for sep. When control personnel report occurrences of this problem they are directed to fill out FAA form 6050.3. This is fine for the first and second occurrences but the continuous filling out of forms does nothing but clutter up a desk. A system needs to be developed to follow up on problems west/O the need of constant repetitive paperwork. A call by an area supervisor to the center system engineer should result in needed documentation corrective action. Dixon, nc, NDB is not providing a proper navigation signal to aircraft on AR7 and J147. Callback conversation west/reporter revealed the following: reporter received an answer to his 2 ucr's and it seems as though reporter was satisfied that something was being done to solve both problems. In the case of the radio interference to aircraft above 11000' from the mem center, southern region has agreed to change the frequency of the offending ZME sector on 5/5/88 and this should solve that problem. Regarding the dixon, nc, NDB problem, it was found that much of the problem revolves around aircraft that stray to the right of AR7 northbound and get very close to the warning area in washington center's airspace. Much of this problem can be eliminated if jacksonville center refrains from clearing the aircraft direct to the NDB, but rather requires the aircraft to remain on AR7. Coordination has been done with ZJX to require the use of the airway rather than direct to dixon. The reporter thought that this would largely eliminate the problem.
Original NASA ASRS Text
Title: ACFT IN A WASHINGTON CENTER SECTOR ABOVE 11000' EXPERIENCED RADIO INTERFERENCE FROM A SECTOR OF THE MEMPHIS CENTER.
Narrative: FREQ PROTECTION OF 134.2 AND THE PROCESS SUGGESTED FOR CORRECTING THIS PROBLEM ARE BOTH UNSATISFACTORY. ACFT ABOVE 11000' NEAR THE SANDHILL (NC) VORTAC RECEIVE XMISSIONS FROM OTHER ACFT WORKING ATC FACS IN TN. OFTEN THESE ACFT RPT HEARING XMISSIONS FROM MEM ARTCC. THIS CONDITION HAS BEEN DOCUMENTED BOTH ON THE DAY AND EVE SHIFTS, AND CAN RESULT IN ACFT NOT RECEIVING TIMELY AIR TFC CLRNCS NEEDED FOR SEP. WHEN CTL PERSONNEL RPT OCCURRENCES OF THIS PROB THEY ARE DIRECTED TO FILL OUT FAA FORM 6050.3. THIS IS FINE FOR THE FIRST AND SECOND OCCURRENCES BUT THE CONTINUOUS FILLING OUT OF FORMS DOES NOTHING BUT CLUTTER UP A DESK. A SYS NEEDS TO BE DEVELOPED TO FOLLOW UP ON PROBS W/O THE NEED OF CONSTANT REPETITIVE PAPERWORK. A CALL BY AN AREA SUPVR TO THE CENTER SYS ENGINEER SHOULD RESULT IN NEEDED DOCUMENTATION CORRECTIVE ACTION. DIXON, NC, NDB IS NOT PROVIDING A PROPER NAV SIGNAL TO ACFT ON AR7 AND J147. CALLBACK CONVERSATION W/RPTR REVEALED THE FOLLOWING: RPTR RECEIVED AN ANSWER TO HIS 2 UCR'S AND IT SEEMS AS THOUGH RPTR WAS SATISFIED THAT SOMETHING WAS BEING DONE TO SOLVE BOTH PROBS. IN THE CASE OF THE RADIO INTERFERENCE TO ACFT ABOVE 11000' FROM THE MEM CENTER, SOUTHERN REGION HAS AGREED TO CHANGE THE FREQ OF THE OFFENDING ZME SECTOR ON 5/5/88 AND THIS SHOULD SOLVE THAT PROB. REGARDING THE DIXON, NC, NDB PROB, IT WAS FOUND THAT MUCH OF THE PROB REVOLVES AROUND ACFT THAT STRAY TO THE RIGHT OF AR7 NBOUND AND GET VERY CLOSE TO THE WARNING AREA IN WASHINGTON CENTER'S AIRSPACE. MUCH OF THIS PROB CAN BE ELIMINATED IF JACKSONVILLE CENTER REFRAINS FROM CLRING THE ACFT DIRECT TO THE NDB, BUT RATHER REQUIRES THE ACFT TO REMAIN ON AR7. COORD HAS BEEN DONE WITH ZJX TO REQUIRE THE USE OF THE AIRWAY RATHER THAN DIRECT TO DIXON. THE RPTR THOUGHT THAT THIS WOULD LARGELY ELIMINATE THE PROB.
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.