<< >> NASA ASRS Report 363143, March 1997

A300 aircraft received TCASII RA. Intruder aircraft was at the same altitude of reporter aircraft. Reporter questioned controller who would not answer.

Attributes
ACN	363143
Time
Date	199703
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : bea
State Reference	FO
Altitude	msl bound lower : 23000 msl bound upper : 24000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : pit
Operator	common carrier : air carrier
Make Model Name	A300
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	cruise other
Route In Use	enroute airway : tncf
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	363143
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	conflict : airborne less severe non adherence : required legal separation other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

We were cleared to FL240 by curacao control. Approximately 5 mins later, we received a TA on TCASII. We observed on TCASII, as well as visually, an aircraft at FL240 at approximately the 10 O'clock position, level. At that time, we received an RA to descend, which we did, to FL230. Once we were clear of the traffic, we climbed back to FL240 and attempted to query curacao control as to why we were both cleared to FL240. No reply was forthcoming and we continued on uneventfully to aua.

Related reports:

• B737-300 aircraft on departure had TCASII RA and flight crew...

	Enter your search terms Submit search form
	Web www.37000feet.com

Original NASA ASRS Text

Title: A300 ACFT RECEIVED TCASII RA. INTRUDER ACFT WAS AT THE SAME ALT OF RPTR ACFT. RPTR QUESTIONED CTLR WHO WOULD NOT ANSWER.

Narrative: WE WERE CLRED TO FL240 BY CURACAO CTL. APPROX 5 MINS LATER, WE RECEIVED A TA ON TCASII. WE OBSERVED ON TCASII, AS WELL AS VISUALLY, AN ACFT AT FL240 AT APPROX THE 10 O'CLOCK POS, LEVEL. AT THAT TIME, WE RECEIVED AN RA TO DSND, WHICH WE DID, TO FL230. ONCE WE WERE CLR OF THE TFC, WE CLBED BACK TO FL240 AND ATTEMPTED TO QUERY CURACAO CTL AS TO WHY WE WERE BOTH CLRED TO FL240. NO REPLY WAS FORTHCOMING AND WE CONTINUED ON UNEVENTFULLY TO AUA.

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.