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B737 first officer receives and acknowledges change of route clearance from I90 while captain is on company frequency. I90 issues corrective heading change when not observing course change at drxlr intersection.
| Attributes | |
| ACN | 507000 |
| Time | |
| Date | 200104 |
| Day | Wed |
| Place | |
| Locale Reference | navaid : iah.vortac |
| State Reference | TX |
| Altitude | msl bound lower : 10000 msl bound upper : 14000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : dca.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Flight Phase | descent : intermediate altitude |
| Route In Use | arrival star : rokit 2 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 250 flight time total : 12219 flight time type : 7052 |
| ASRS Report | 507000 |
| Events | |
| Anomaly | non adherence : clearance other spatial deviation |
| Resolutory Action | controller : issued new clearance controller : issued advisory flight crew : became reoriented |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Environmental Factor Airspace Structure Airport ATC Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
On arrival to hou, passing about 14000 ft to 10000 ft, I (the captain) went off ATC frequency to call company in-range for the gate. We were on the rokit 2 arrival. Hou approach instructed us to fly 300 degree heading out of drxlr intersection, then changed it to 290 degree heading. My first officer acknowledged the headings and immediately turned to 300 degree heading and then 290 degree heading, but did not hear or repeat out of drxlr. Meanwhile, I came back to ATC frequency. About 1 min later, hou approach said 'turn left immediately to 180 degree heading and rejoin the approach.' he added that the 290 degree heading was out of drxlr. I called hou approach on the ground via landline and listened to the tapes. The problems I see are two: 1) hou approach always assumes a local hou air crew who are used to local procedures and proceeds at lightning speed with sometimes abbreviated acknowledgements from us. 2) we are always at risk when one crew member goes off frequency to company and at that moment, we are not backing each other up. In the future, I'll be more careful when I go off approach frequency. Maybe we should call in-range about FL180, before things get busy with approach. This was only my first officer's third arrival in hou airspace and I should have been more attentive.
Original NASA ASRS Text
Title: B737 FO RECEIVES AND ACKNOWLEDGES CHANGE OF RTE CLRNC FROM I90 WHILE CAPT IS ON COMPANY FREQ. I90 ISSUES CORRECTIVE HDG CHANGE WHEN NOT OBSERVING COURSE CHANGE AT DRXLR INTXN.
Narrative: ON ARR TO HOU, PASSING ABOUT 14000 FT TO 10000 FT, I (THE CAPT) WENT OFF ATC FREQ TO CALL COMPANY IN-RANGE FOR THE GATE. WE WERE ON THE ROKIT 2 ARR. HOU APCH INSTRUCTED US TO FLY 300 DEG HDG OUT OF DRXLR INTXN, THEN CHANGED IT TO 290 DEG HDG. MY FO ACKNOWLEDGED THE HDGS AND IMMEDIATELY TURNED TO 300 DEG HDG AND THEN 290 DEG HDG, BUT DID NOT HEAR OR REPEAT OUT OF DRXLR. MEANWHILE, I CAME BACK TO ATC FREQ. ABOUT 1 MIN LATER, HOU APCH SAID 'TURN L IMMEDIATELY TO 180 DEG HDG AND REJOIN THE APCH.' HE ADDED THAT THE 290 DEG HDG WAS OUT OF DRXLR. I CALLED HOU APCH ON THE GND VIA LANDLINE AND LISTENED TO THE TAPES. THE PROBS I SEE ARE TWO: 1) HOU APCH ALWAYS ASSUMES A LCL HOU AIR CREW WHO ARE USED TO LCL PROCS AND PROCEEDS AT LIGHTNING SPD WITH SOMETIMES ABBREVIATED ACKNOWLEDGEMENTS FROM US. 2) WE ARE ALWAYS AT RISK WHEN ONE CREW MEMBER GOES OFF FREQ TO COMPANY AND AT THAT MOMENT, WE ARE NOT BACKING EACH OTHER UP. IN THE FUTURE, I'LL BE MORE CAREFUL WHEN I GO OFF APCH FREQ. MAYBE WE SHOULD CALL IN-RANGE ABOUT FL180, BEFORE THINGS GET BUSY WITH APCH. THIS WAS ONLY MY FO'S THIRD ARR IN HOU AIRSPACE AND I SHOULD HAVE BEEN MORE ATTENTIVE.
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.