<< >> NASA ASRS Report 397623, March 1998

A B757 making an ILS approach into gru, first officer, received a TCASII RA. B757 takes evasive action and makes another approach with no conflicts.

Attributes
ACN	397623
Time
Date	199803
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : gru
State Reference	FO
Altitude	msl bound lower : 6000 msl bound upper : 6000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : sao tower : zzz
Operator	common carrier : air carrier
Make Model Name	B767 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent : approach
Route In Use	enroute : direct
Flight Plan	IFR
Aircraft 2
Make Model Name	B727 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	397623
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
ASRS Report	397622
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : required legal separation other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 1200 vertical : 500
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Z time: XX05. Frequency/altitude: 129.75/6000 ft. ATC facility: gru approach. Location: localizer runway 9R. Cleared ILS runway 9R. On localizer on GS out of 6000 ft received TCASII RA. Complied with RA. RA ended, resumed approach. Received second TCASII RA. Climbed at 1800 FPM. Crew saw TCASII target 500 ft below. RA ended, saw white B727 within approximately 1/2 mi at approximately our altitude in a right turn to the south. Advised ATC. ATC gave vectors for a go around. Landed. Called dispatch with report. Supplemental information from acn 397624: ATC facility: sao paulo approach, final controller. Location: on ILS runway 9R gru at 6000 ft ca. 13 mi on ILS runway 9R gru descent from 6000 ft to follow the GS. Cleared for ILS runway 9R. Got a TA followed by an RA. We climbed 1800 FPM followed by a clear of conflict. We then resumed descent and lowered the landing gear. Shortly after we got a TA immediately followed by an RA climb, climb. We complied with TCASII and climbed. Then saw a white B727 break off to the right from below us. At the closest point, TCASII showed the traffic 500 ft directly below us. At the time the B727 broke off to the right, we saw it as 500 ft below us and approximately 1/4 mi horizontal separation. We called ATC. ATC instructed us to climb to 6000 ft and gave us vectors for a new approach to ILS runway 9R gru followed by a normal full stop landing. Captain was PF.

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Original NASA ASRS Text

Title: A B757 MAKING AN ILS APCH INTO GRU, FO, RECEIVED A TCASII RA. B757 TAKES EVASIVE ACTION AND MAKES ANOTHER APCH WITH NO CONFLICTS.

Narrative: Z TIME: XX05. FREQ/ALT: 129.75/6000 FT. ATC FACILITY: GRU APCH. LOCATION: LOC RWY 9R. CLRED ILS RWY 9R. ON LOC ON GS OUT OF 6000 FT RECEIVED TCASII RA. COMPLIED WITH RA. RA ENDED, RESUMED APCH. RECEIVED SECOND TCASII RA. CLBED AT 1800 FPM. CREW SAW TCASII TARGET 500 FT BELOW. RA ENDED, SAW WHITE B727 WITHIN APPROX 1/2 MI AT APPROX OUR ALT IN A R TURN TO THE S. ADVISED ATC. ATC GAVE VECTORS FOR A GAR. LANDED. CALLED DISPATCH WITH RPT. SUPPLEMENTAL INFO FROM ACN 397624: ATC FACILITY: SAO PAULO APCH, FINAL CTLR. LOCATION: ON ILS RWY 9R GRU AT 6000 FT CA. 13 MI ON ILS RWY 9R GRU DSCNT FROM 6000 FT TO FOLLOW THE GS. CLRED FOR ILS RWY 9R. GOT A TA FOLLOWED BY AN RA. WE CLBED 1800 FPM FOLLOWED BY A CLR OF CONFLICT. WE THEN RESUMED DSCNT AND LOWERED THE LNDG GEAR. SHORTLY AFTER WE GOT A TA IMMEDIATELY FOLLOWED BY AN RA CLB, CLB. WE COMPLIED WITH TCASII AND CLBED. THEN SAW A WHITE B727 BREAK OFF TO THE R FROM BELOW US. AT THE CLOSEST POINT, TCASII SHOWED THE TFC 500 FT DIRECTLY BELOW US. AT THE TIME THE B727 BROKE OFF TO THE R, WE SAW IT AS 500 FT BELOW US AND APPROX 1/4 MI HORIZ SEPARATION. WE CALLED ATC. ATC INSTRUCTED US TO CLB TO 6000 FT AND GAVE US VECTORS FOR A NEW APCH TO ILS RWY 9R GRU FOLLOWED BY A NORMAL FULL STOP LNDG. CAPT WAS PF.

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.