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Operational error pilot deviation between air carrier a and mlt B resulting from a TCASII alert to air carrier a.
| Attributes | |
| ACN | 280338 |
| Time | |
| Date | 199408 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : pdz |
| State Reference | CA |
| Altitude | msl bound lower : 11000 msl bound upper : 11000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : o40 |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Series (DC-9-80) Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure sid : sid |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | other |
| Make Model Name | Stratotanker 135 |
| Operating Under FAR Part | other : other |
| Flight Phase | climbout : intermediate altitude cruise other |
| Route In Use | departure sid : sid |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : departure |
| Experience | controller radar : 19 |
| ASRS Report | 280338 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : instrument pilot : commercial |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation non adherence : published procedure |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other controllera |
| Resolutory Action | flight crew : took evasive action none taken : anomaly accepted |
| Consequence | Other |
| Miss Distance | horizontal : 6000 vertical : 400 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation Operational Error |
Narrative:
I am a supervisor at ontario TRACON ontario, ca. I was working a radar sector for currency/proficiency during the morning. I was having frequency problems and technicians were changing modules. During this time an air carrier air carrier a departure off ontario proceeding sbound on the prado 4 trm SID climbing to 14000 ft MSL. Also on departure off march AFB (riv) a KE35 on the sky ES7-ocn SID climbing to 12000 ft MSL. I expected air carrier a, MD80, to continue observed rate of climb and turn to intercept the sli.080R (trm) transitions the aircraft slowed rate of climb, leveled at 11000 ft MSL and flew through the radials of the trm transition. The KE35, mlt B was flying the sky es-ocn transition and I thought I had assigned 11000 ft to ensure vertical separation with air carrier a. Mlt B did not hear the altitude assignment because of the radio problems. Mct B leveled at 11000 MSL. I believe these airplanes got close because air carrier a followed a TCASII RA to climb but did not turn on the sli 080R which would have established diverging courses, ie, air carrier a would go behind the KE35. Also, the problems with the radio equipment was distracting, requiring my attention to getting aircraft on the proper frequency.
Original NASA ASRS Text
Title: OPERROR PLTDEV BTWN ACR A AND MLT B RESULTING FROM A TCASII ALERT TO ACR A.
Narrative: I AM A SUPVR AT ONTARIO TRACON ONTARIO, CA. I WAS WORKING A RADAR SECTOR FOR CURRENCY/PROFICIENCY DURING THE MORNING. I WAS HAVING FREQ PROBS AND TECHNICIANS WERE CHANGING MODULES. DURING THIS TIME AN ACR ACR A DEP OFF ONTARIO PROCEEDING SBOUND ON THE PRADO 4 TRM SID CLBING TO 14000 FT MSL. ALSO ON DEP OFF MARCH AFB (RIV) A KE35 ON THE SKY ES7-OCN SID CLBING TO 12000 FT MSL. I EXPECTED ACR A, MD80, TO CONTINUE OBSERVED RATE OF CLB AND TURN TO INTERCEPT THE SLI.080R (TRM) TRANSITIONS THE ACFT SLOWED RATE OF CLB, LEVELED AT 11000 FT MSL AND FLEW THROUGH THE RADIALS OF THE TRM TRANSITION. THE KE35, MLT B WAS FLYING THE SKY ES-OCN TRANSITION AND I THOUGHT I HAD ASSIGNED 11000 FT TO ENSURE VERT SEPARATION WITH ACR A. MLT B DID NOT HEAR THE ALT ASSIGNMENT BECAUSE OF THE RADIO PROBS. MCT B LEVELED AT 11000 MSL. I BELIEVE THESE AIRPLANES GOT CLOSE BECAUSE ACR A FOLLOWED A TCASII RA TO CLB BUT DID NOT TURN ON THE SLI 080R WHICH WOULD HAVE ESTABLISHED DIVERGING COURSES, IE, ACR A WOULD GO BEHIND THE KE35. ALSO, THE PROBS WITH THE RADIO EQUIP WAS DISTRACTING, REQUIRING MY ATTN TO GETTING ACFT ON THE PROPER FREQ.
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.