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Flight crew of a B757-200 lost radio contact with center for a short time since after re-establishing contact via ACARS, ARTCC controller advised that they had given a frequency change.
| Attributes | |
| ACN | 465210 |
| Time | |
| Date | 200003 |
| Day | Sun |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : phl.airport |
| State Reference | PA |
| Altitude | msl single value : 17000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zny.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : intermediate altitude descent : vacating altitude |
| Route In Use | arrival star : bunts one |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : instrument pilot : multi engine pilot : atp pilot : commercial |
| Experience | flight time last 90 days : 100 flight time total : 23000 flight time type : 450 |
| ASRS Report | 465210 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence : clearance other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : com radio other flight crewa |
| Resolutory Action | aircraft : equipment problem dissipated controller : issued new clearance flight crew : overcame equipment problem |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance Aircraft |
| Primary Problem | Aircraft |
Narrative:
This flight was vectored and given multiple altitude assignments to allow a preceding flight space ahead on the arrival (a total of 4 or more vectors and 2 altitude changes). Normally bunts intersection is crossed at 8000 ft. The frequency was very busy and several xmissions were stepped on and blocked. Several attempts were made by this crew to obtain descent clearance but were blocked so the last assigned altitude and route were maintained. No loss or separation occurred. Communication was re-established through an ACARS message and the flight proceeded normally. Apparently a frequency change was covered and missed by this flight.
Original NASA ASRS Text
Title: FLC OF A B757-200 LOST RADIO CONTACT WITH CTR FOR A SHORT TIME SINCE AFTER RE-ESTABLISHING CONTACT VIA ACARS, ARTCC CTLR ADVISED THAT THEY HAD GIVEN A FREQ CHANGE.
Narrative: THIS FLT WAS VECTORED AND GIVEN MULTIPLE ALT ASSIGNMENTS TO ALLOW A PRECEDING FLT SPACE AHEAD ON THE ARR (A TOTAL OF 4 OR MORE VECTORS AND 2 ALT CHANGES). NORMALLY BUNTS INTXN IS CROSSED AT 8000 FT. THE FREQ WAS VERY BUSY AND SEVERAL XMISSIONS WERE STEPPED ON AND BLOCKED. SEVERAL ATTEMPTS WERE MADE BY THIS CREW TO OBTAIN DSCNT CLRNC BUT WERE BLOCKED SO THE LAST ASSIGNED ALT AND RTE WERE MAINTAINED. NO LOSS OR SEPARATION OCCURRED. COM WAS RE-ESTABLISHED THROUGH AN ACARS MESSAGE AND THE FLT PROCEEDED NORMALLY. APPARENTLY A FREQ CHANGE WAS COVERED AND MISSED BY THIS FLT.
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.