 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
B737 flight crew during transition for approach, and being vectored by approach control while in thunderstorm turbulence condition, descended in response to a TCASII RA. TCASII recorded unsighted traffic at the closest point of 800 ft.
| Attributes | |
| ACN | 540632 |
| Time | |
| Date | 200203 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | intersection : ninfa |
| State Reference | TX |
| Altitude | msl single value : 6000 |
| Environment | |
| Flight Conditions | IMC |
| Weather Elements | Rain Thunderstorm Fog Turbulence other |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : i90.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : i90.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| 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 : atp |
| Experience | flight time last 90 days : 240 |
| ASRS Report | 540632 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | conflict : airborne critical conflict : airborne less severe inflight encounter : turbulence inflight encounter : weather |
| Independent Detector | atc equipment other atc equipment : radar aircraft equipment : tcas other controllera other flight crewa |
| Resolutory Action | controller : issued new clearance controller : separated traffic flight crew : took precautionary avoidance action |
| Miss Distance | horizontal : 800 |
| Supplementary | |
| Problem Areas | Weather ATC Human Performance |
| Primary Problem | Weather |
| Air Traffic Incident | other |
Narrative:
Upon arrival into approach controller airspace at iah, the WX had deteriorated very rapidly with thunderstorms and turbulence. Flight at 6000 ft IMC near ninfa intersection with ATC clearance to deviate as necessary. Controller became overloaded. Our flight was given an immediate vector and also received a TCASII command to descend. Followed TCASII RA to 5000 ft. TCASII showed 800 ft separation. Supervisor controller took over. Rerted and reassigned runway 27. Landed runway 27. Called supervisor of TRACON. Suspect ATC controller training in progress at time of WX deviations by our flight. Suggest additional supervisor controllers on duty during poor WX.
Original NASA ASRS Text
Title: B737 FLC DURING TRANSITION FOR APCH, AND BEING VECTORED BY APCH CTL WHILE IN TSTM TURB CONDITION, DSNDED IN RESPONSE TO A TCASII RA. TCASII RECORDED UNSIGHTED TFC AT THE CLOSEST POINT OF 800 FT.
Narrative: UPON ARR INTO APCH CTLR AIRSPACE AT IAH, THE WX HAD DETERIORATED VERY RAPIDLY WITH TSTMS AND TURB. FLT AT 6000 FT IMC NEAR NINFA INTXN WITH ATC CLRNC TO DEVIATE AS NECESSARY. CTLR BECAME OVERLOADED. OUR FLT WAS GIVEN AN IMMEDIATE VECTOR AND ALSO RECEIVED A TCASII COMMAND TO DSND. FOLLOWED TCASII RA TO 5000 FT. TCASII SHOWED 800 FT SEPARATION. SUPVR CTLR TOOK OVER. RERTED AND REASSIGNED RWY 27. LANDED RWY 27. CALLED SUPVR OF TRACON. SUSPECT ATC CTLR TRAINING IN PROGRESS AT TIME OF WX DEVS BY OUR FLT. SUGGEST ADDITIONAL SUPVR CTLRS ON DUTY DURING POOR WX.
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.