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Iah local controller unable to obtain takeoff clearance acknowledgement from C750 in position on runway 22 and allows B737 to land on other crossing runway.
| Attributes | |
| ACN | 523292 |
| Time | |
| Date | 200108 |
| Day | Wed |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : iah.airport |
| State Reference | TX |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | Marginal |
| Weather Elements | Rain |
| Aircraft 1 | |
| Controlling Facilities | tower : iah.tower |
| Operator | general aviation : corporate |
| Make Model Name | Citation X |
| Operating Under FAR Part | Part 91 |
| Flight Phase | ground : position and hold |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tower : iah.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : radar |
| Experience | controller limited radar : 3 controller military : 8.5 controller non radar : 3 controller radar : 5 flight time total : 30 |
| ASRS Report | 523292 |
| Person 2 | |
| Affiliation | company : corporate |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | ATC Human Performance Airport Environmental Factor ATC Facility |
| Primary Problem | ATC Facility |
Narrative:
Aircraft X (a C750) was holding in position on runway 22. Air carrier aircraft Y (B737) on 3 mi final, crossing runway 12R. Aircraft X did not reply to the controller's instruction (runway 22 traffic 3 mi, crossing runway, cleared for takeoff). Advised aircraft Y to be ready for go around. Aircraft X never moved, so I allowed aircraft Y to land. Aircraft X came back to me and said they never heard the clearance for takeoff.
Original NASA ASRS Text
Title: IAH LCL CTLR UNABLE TO OBTAIN TKOF CLRNC ACKNOWLEDGEMENT FROM C750 IN POS ON RWY 22 AND ALLOWS B737 TO LAND ON OTHER XING RWY.
Narrative: ACFT X (A C750) WAS HOLDING IN POS ON RWY 22. ACR ACFT Y (B737) ON 3 MI FINAL, XING RWY 12R. ACFT X DID NOT REPLY TO THE CTLR'S INSTRUCTION (RWY 22 TFC 3 MI, XING RWY, CLRED FOR TKOF). ADVISED ACFT Y TO BE READY FOR GAR. ACFT X NEVER MOVED, SO I ALLOWED ACFT Y TO LAND. ACFT X CAME BACK TO ME AND SAID THEY NEVER HEARD THE CLRNC FOR TKOF.
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.