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Altitude deviation by air carrier PIC in response to TCASII RA created by FAA flight inspection aircraft in an altitude deviation altitude excursion.
| Attributes | |
| ACN | 201099 |
| Time | |
| Date | 199202 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : las |
| State Reference | NV |
| Altitude | msl bound lower : 12000 msl bound upper : 13000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : las |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | cruise other descent other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | other |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | climbout : intermediate altitude cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : instrument pilot : atp pilot : commercial |
| Experience | flight time last 90 days : 250 flight time total : 15000 flight time type : 13500 |
| ASRS Report | 201099 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : overshoot altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 200 vertical : 500 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We were on our descent into las. Our clearance was to 13000 ft. At about the 40 DME 075 radial of las we received a TCASII of traffic 2 O'clock 5 mi climbing to our altitude. This was followed by a RA ordering descent. We followed the RA descending. At 12500 ft an aircraft passed directly over us. Approach was notified and they said the aircraft was at 12000 ft and unexpectedly climbed to 13000 ft. The aircraft was an FAA flight check. Without TCASII this would have been a near miss or worse. We received no advance notice from approach.
Original NASA ASRS Text
Title: ALTDEV BY ACR PIC IN RESPONSE TO TCASII RA CREATED BY FAA FLT INSPECTION ACFT IN AN ALTDEV ALT EXCURSION.
Narrative: WE WERE ON OUR DSCNT INTO LAS. OUR CLRNC WAS TO 13000 FT. AT ABOUT THE 40 DME 075 RADIAL OF LAS WE RECEIVED A TCASII OF TFC 2 O'CLOCK 5 MI CLBING TO OUR ALT. THIS WAS FOLLOWED BY A RA ORDERING DSCNT. WE FOLLOWED THE RA DSNDING. AT 12500 FT AN ACFT PASSED DIRECTLY OVER US. APCH WAS NOTIFIED AND THEY SAID THE ACFT WAS AT 12000 FT AND UNEXPECTEDLY CLBED TO 13000 FT. THE ACFT WAS AN FAA FLT CHK. WITHOUT TCASII THIS WOULD HAVE BEEN A NEAR MISS OR WORSE. WE RECEIVED NO ADVANCE NOTICE FROM APCH.
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.