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Air carrier flight crew on vector at cruise altitude miss frequency change. Flight crew obtain information via ACARS to change to next control frequency.
| Attributes | |
| ACN | 409400 |
| Time | |
| Date | 199807 |
| Day | Thu |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : bsr |
| State Reference | CA |
| Altitude | msl bound lower : 31000 msl bound upper : 31000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zoa artcc : zla |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | cruise other |
| Route In Use | arrival other arrival star : star enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 245 flight time total : 3800 flight time type : 1810 |
| ASRS Report | 409400 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : instrument pilot : commercial pilot : atp |
| Experience | flight time last 90 days : 222 flight time total : 9260 flight time type : 1244 |
| ASRS Report | 409574 |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | other |
Narrative:
This was a scheduled air carrier flight between bur and sfo. After leveling off in cruise flight, just passing gorman VOR, we were assigned direct bsr. Shortly thereafter, we were given a heading 250 degrees, vectors for spacing to sfo. Mins later, we were given heading 270 degrees, again by ZLA. After continuing on heading 270 degrees until passing abeam bsr VOR, we became suspicious that ZLA may have forgotten about us, although during the entire time on our vector heading 270 degrees we could hear the ZLA controller. Just after passing abeam bsr VOR, we received a message via ACARS to contact ZOA. Upon initial contact, were assigned an immediate right turn to avoid potential warning area penetration to rejoin the bsr 2 arrival. At no time while we were on ZLA frequency did we hear our call sign for a frequency change. Just as we were going to initiate a call to verify our heading, we received the message via ACARS for the frequency change to ZOA.
Original NASA ASRS Text
Title: ACR FLC ON VECTOR AT CRUISE ALT MISS FREQ CHANGE. FLC OBTAIN INFO VIA ACARS TO CHANGE TO NEXT CTL FREQ.
Narrative: THIS WAS A SCHEDULED ACR FLT BTWN BUR AND SFO. AFTER LEVELING OFF IN CRUISE FLT, JUST PASSING GORMAN VOR, WE WERE ASSIGNED DIRECT BSR. SHORTLY THEREAFTER, WE WERE GIVEN A HDG 250 DEGS, VECTORS FOR SPACING TO SFO. MINS LATER, WE WERE GIVEN HDG 270 DEGS, AGAIN BY ZLA. AFTER CONTINUING ON HDG 270 DEGS UNTIL PASSING ABEAM BSR VOR, WE BECAME SUSPICIOUS THAT ZLA MAY HAVE FORGOTTEN ABOUT US, ALTHOUGH DURING THE ENTIRE TIME ON OUR VECTOR HDG 270 DEGS WE COULD HEAR THE ZLA CTLR. JUST AFTER PASSING ABEAM BSR VOR, WE RECEIVED A MESSAGE VIA ACARS TO CONTACT ZOA. UPON INITIAL CONTACT, WERE ASSIGNED AN IMMEDIATE R TURN TO AVOID POTENTIAL WARNING AREA PENETRATION TO REJOIN THE BSR 2 ARR. AT NO TIME WHILE WE WERE ON ZLA FREQ DID WE HEAR OUR CALL SIGN FOR A FREQ CHANGE. JUST AS WE WERE GOING TO INITIATE A CALL TO VERIFY OUR HDG, WE RECEIVED THE MESSAGE VIA ACARS FOR THE FREQ CHANGE TO ZOA.
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.