|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||0601 To 1200|
|Locale Reference||atc facility : dtw|
|Altitude||msl bound lower : 8000|
msl bound upper : 8000
|Controlling Facilities||tracon : dtw|
|Affiliation||government : faa|
|Function||controller : approach|
|Qualification||controller : radar|
|Experience||controller radar : 7|
|Affiliation||company : air carrier|
|Function||flight crew : captain|
oversight : pic
|Qualification||pilot : atp|
|Anomaly||non adherence : published procedure|
other anomaly other
|Independent Detector||other controllera|
|Resolutory Action||none taken : unable|
|Primary Problem||Flight Crew Human Performance|
|Air Traffic Incident||other|
Air carrier has a flight X000 from ind (I think) to dtw at approximately XX30 am daily. Pilots flying this trip often drop the company identify in radio communications. This leads to confusion, especially when I (as a controller) am busy. When I issue a descent clearance, the readback from this crew (probably 10-20% of the time) often will be 'roger, down to 3000, X thousand.' even a momentary lapse in concentration can cause one ot think 'did he read back three thousand or X thousand?' to correct this problem, I think all the air carriers (and commuters) should immediately stop using trip numbers ending in 000. If not, someday somebody will accidentally descend to X000. Hopefully, the airport elevation will be below X000'.
Original NASA ASRS Text
Title: COMPANY NAME OFTEN DROPPED DURING COM WITH ATC RESULTING IN CONFUSION FOR THE REPORTER.
Narrative: ACR HAS A FLT X000 FROM IND (I THINK) TO DTW AT APPROX XX30 AM DAILY. PLTS FLYING THIS TRIP OFTEN DROP THE COMPANY IDENT IN RADIO COMS. THIS LEADS TO CONFUSION, ESPECIALLY WHEN I (AS A CTLR) AM BUSY. WHEN I ISSUE A DSCNT CLRNC, THE READBACK FROM THIS CREW (PROBABLY 10-20% OF THE TIME) OFTEN WILL BE 'ROGER, DOWN TO 3000, X THOUSAND.' EVEN A MOMENTARY LAPSE IN CONCENTRATION CAN CAUSE ONE OT THINK 'DID HE READ BACK THREE THOUSAND OR X THOUSAND?' TO CORRECT THIS PROB, I THINK ALL THE AIR CARRIERS (AND COMMUTERS) SHOULD IMMEDIATELY STOP USING TRIP NUMBERS ENDING IN 000. IF NOT, SOMEDAY SOMEBODY WILL ACCIDENTALLY DSND TO X000. HOPEFULLY, THE AIRPORT ELEVATION WILL BE BELOW X000'.
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.