 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Altitude deviation occurs after air carrier pilot response to TCASII RA. Reporter PIC questions ATC inquiry into their deviation even though intruder aircraft was visually acquired during the RA climb maneuver. Controller most likely filling out form for statistical purposes.
| Attributes | |
| ACN | 210840 |
| Time | |
| Date | 199205 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : lrp |
| State Reference | PA |
| Altitude | msl bound lower : 11000 msl bound upper : 11500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zny |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | cruise other |
| Route In Use | arrival other arrival star : star enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 170 flight time total : 11500 flight time type : 6500 |
| ASRS Report | 210840 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : commercial pilot : instrument |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : clearance other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other controllera |
| Resolutory Action | flight crew : took evasive action |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 6000 vertical : 500 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We were advised by ATC that there was traffic at approximately 1 O'clock over the lancaster VOR as we were approaching lancaster on the bucks 2 arrival into phl. We observed the target on our TCASII but did not have him visually. Shortly thereafter, we got a RA telling us to 'climb, climb now.' the first officer complied with the advisory by adding power and climbing as per the commands on the TCASII. I visually sighted the target aircraft at this time and so informed ATC as well as telling him we were complying with our TCASII resolution by climbing. He then asked a number of questions that indicated he did not know the pilot's responsibilities regarding TCASII RA's. Specifically, he wanted to verify that we complied with the RA even though we had the traffic in sight. ATC should be advised that, according to our operating manuals, compliance with a TCASII RA is mandatory unless the PIC determines that to do so would jeopardize the safety of flight.
Original NASA ASRS Text
Title: ALTDEV OCCURS AFTER ACR PLT RESPONSE TO TCASII RA. RPTR PIC QUESTIONS ATC INQUIRY INTO THEIR DEV EVEN THOUGH INTRUDER ACFT WAS VISUALLY ACQUIRED DURING THE RA CLB MANEUVER. CTLR MOST LIKELY FILLING OUT FORM FOR STATISTICAL PURPOSES.
Narrative: WE WERE ADVISED BY ATC THAT THERE WAS TFC AT APPROX 1 O'CLOCK OVER THE LANCASTER VOR AS WE WERE APCHING LANCASTER ON THE BUCKS 2 ARR INTO PHL. WE OBSERVED THE TARGET ON OUR TCASII BUT DID NOT HAVE HIM VISUALLY. SHORTLY THEREAFTER, WE GOT A RA TELLING US TO 'CLB, CLB NOW.' THE FO COMPLIED WITH THE ADVISORY BY ADDING PWR AND CLBING AS PER THE COMMANDS ON THE TCASII. I VISUALLY SIGHTED THE TARGET ACFT AT THIS TIME AND SO INFORMED ATC AS WELL AS TELLING HIM WE WERE COMPLYING WITH OUR TCASII RESOLUTION BY CLBING. HE THEN ASKED A NUMBER OF QUESTIONS THAT INDICATED HE DID NOT KNOW THE PLT'S RESPONSIBILITIES REGARDING TCASII RA'S. SPECIFICALLY, HE WANTED TO VERIFY THAT WE COMPLIED WITH THE RA EVEN THOUGH WE HAD THE TFC IN SIGHT. ATC SHOULD BE ADVISED THAT, ACCORDING TO OUR OPERATING MANUALS, COMPLIANCE WITH A TCASII RA IS MANDATORY UNLESS THE PIC DETERMINES THAT TO DO SO WOULD JEOPARDIZE THE SAFETY OF FLT.
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.