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Altitude deviation altitude undershot in climbing traffic situation. Potential conflict. Conflicting commands of TCASII versus ATC.
| Attributes | |
| ACN | 267075 |
| Time | |
| Date | 199403 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : ott |
| State Reference | MD |
| Altitude | msl bound lower : 9500 msl bound upper : 11500 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : bwi |
| Operator | common carrier : air carrier |
| Make Model Name | B727 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : instrument pilot : atp pilot : commercial pilot : flight engineer |
| Experience | flight time last 90 days : 200 flight time total : 8100 flight time type : 5200 |
| ASRS Report | 267075 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : undershoot conflict : airborne less severe 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 : 18000 |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation |
Narrative:
IMC climb out on bwi departure 124.55 15 mi from 'daily' intersection on 150 degree heading. ATC instructed right turn to 270 degrees. Turn resulted in TCASII-TA 7 mi ahead descending through our altitude. Then received RA instructing descend (opposing our clearance of climb to 14000 ft). We descended from 11500 to 9500 to resolve the RA. ATC advised climb. Airline procedure requires TCASII compliance.
Original NASA ASRS Text
Title: ALTDEV ALT UNDERSHOT IN CLBING TFC SIT. POTENTIAL CONFLICT. CONFLICTING COMMANDS OF TCASII VERSUS ATC.
Narrative: IMC CLBOUT ON BWI DEP 124.55 15 MI FROM 'DAILY' INTXN ON 150 DEG HDG. ATC INSTRUCTED R TURN TO 270 DEGS. TURN RESULTED IN TCASII-TA 7 MI AHEAD DSNDING THROUGH OUR ALT. THEN RECEIVED RA INSTRUCTING DSND (OPPOSING OUR CLRNC OF CLB TO 14000 FT). WE DSNDED FROM 11500 TO 9500 TO RESOLVE THE RA. ATC ADVISED CLB. AIRLINE PROC REQUIRES TCASII COMPLIANCE.
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.