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A B737 flight crew was issued a close-in runway change from iah runway 27 to runway 26L which they did not hear; resulting in a conflict with a crj on approach to runway 27.
| Attributes | |
| ACN | 757158 |
| Time | |
| Date | 200709 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : iah.airport |
| State Reference | TX |
| Altitude | msl single value : 6000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : i90.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet CL65 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : multi engine pilot : instrument pilot : flight engineer pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 225 flight time total : 17000 flight time type : 8000 |
| ASRS Report | 757158 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : clearance other spatial deviation other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance |
| Miss Distance | horizontal : 12000 vertical : 300 |
| Supplementary | |
| Problem Areas | ATC Human Performance Flight Crew Human Performance |
| Primary Problem | Ambiguous |
Narrative:
Upon initial contact with houston approach; we were assigned runway 27. Flew a 20 mile downwind followed by vectors to heading 130 degrees; then 180 degrees; then 240 degrees to intercept. I acknowledged the heading to intercept; but did not hear (nor expect on final approach vector) a last second runway change to runway 26L as we were intercepting runway 27 localizer. Saw crj about 2 miles ahead on localizer; started to turn away at same time as ATC issued turn to 300 degree intercept runway 26L localizer. Never got TCAS TA/RA. Would guess about 2 to 3 miles separation. Landed visual runway 26L. Talked to ATC on ground; they admitted wrong runway assignment; but admit no fault because final controller did state intercept cleared for approach runway 26L (even though this was at the last possible moment).
Original NASA ASRS Text
Title: A B737 FLT CREW WAS ISSUED A CLOSE-IN RWY CHANGE FROM IAH RWY 27 TO RWY 26L WHICH THEY DID NOT HEAR; RESULTING IN A CONFLICT WITH A CRJ ON APCH TO RWY 27.
Narrative: UPON INITIAL CONTACT WITH HOUSTON APCH; WE WERE ASSIGNED RWY 27. FLEW A 20 MILE DOWNWIND FOLLOWED BY VECTORS TO HEADING 130 DEGS; THEN 180 DEGS; THEN 240 DEGS TO INTERCEPT. I ACKNOWLEDGED THE HEADING TO INTERCEPT; BUT DID NOT HEAR (NOR EXPECT ON FINAL APCH VECTOR) A LAST SECOND RWY CHANGE TO RWY 26L AS WE WERE INTERCEPTING RWY 27 LOC. SAW CRJ ABOUT 2 MILES AHEAD ON LOC; STARTED TO TURN AWAY AT SAME TIME AS ATC ISSUED TURN TO 300 DEG INTERCEPT RWY 26L LOC. NEVER GOT TCAS TA/RA. WOULD GUESS ABOUT 2 TO 3 MILES SEPARATION. LANDED VISUAL RWY 26L. TALKED TO ATC ON GND; THEY ADMITTED WRONG RWY ASSIGNMENT; BUT ADMIT NO FAULT BECAUSE FINAL CTLR DID STATE INTERCEPT CLRED FOR APCH RWY 26L (EVEN THOUGH THIS WAS AT THE LAST POSSIBLE MOMENT).
Data retrieved from NASA's ASRS site as of January 2009 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.