Departing bna, flight crew alleges unwanted TCAS warning, altitude deviation.

Attributes
ACN	183735
Time
Date	199107
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : bna
State Reference	TN
Altitude	msl bound lower : 5000 msl bound upper : 5400
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : bna
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	climbout : intermediate altitude
Route In Use	departure other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : instrument pilot : flight engineer pilot : commercial
Experience	flight time last 90 days : 182 flight time total : 14719 flight time type : 3926
ASRS Report	183735
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : commercial pilot : instrument
Experience	flight time last 90 days : 210 flight time total : 8500 flight time type : 1500
ASRS Report	183748
Events
Anomaly	aircraft equipment problem : less severe altitude deviation : overshoot conflict : airborne less severe non adherence : clearance
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : regained aircraft control flight crew : returned to intended course or assigned course
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation other

Narrative:

Departing nashville (bna) we received an unnecessary 'traffic' aural warning at about 4000 ft on TCAS. This aural warning was too loud and hampered our ability to hear bna departure control's (119.35) instruction to turn left. (Turn not made because of TCAS warning.) this confusion resulted with a climb through our assigned altitude of 5000 to approximately 5400. No conflict resulted from our deviation. Recommendation: TCAS aural warning is much too loud and warning parameters are too wide.

Original NASA ASRS Text

Title: DEPARTING BNA, FLC ALLEGES UNWANTED TCAS WARNING, ALT DEV.

Narrative: DEPARTING NASHVILLE (BNA) WE RECEIVED AN UNNECESSARY 'TFC' AURAL WARNING AT ABOUT 4000 FT ON TCAS. THIS AURAL WARNING WAS TOO LOUD AND HAMPERED OUR ABILITY TO HEAR BNA DEP CTL'S (119.35) INSTRUCTION TO TURN L. (TURN NOT MADE BECAUSE OF TCAS WARNING.) THIS CONFUSION RESULTED WITH A CLB THROUGH OUR ASSIGNED ALT OF 5000 TO APPROX 5400. NO CONFLICT RESULTED FROM OUR DEV. RECOMMENDATION: TCAS AURAL WARNING IS MUCH TOO LOUD AND WARNING PARAMETERS ARE TOO WIDE.

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.