An air carrier medium large transport climbed in response to a GPWS warning.

Attributes
ACN	233935
Time
Date	199302
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : bna
State Reference	TN
Altitude	msl bound lower : 2500 msl bound upper : 3500
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : bna
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	cruise other descent : approach
Route In Use	approach : straight in
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 0 flight time total : 15
ASRS Report	233935
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : less severe altitude deviation : excursion from assigned altitude inflight encounter : weather non adherence : published procedure non adherence : clearance other spatial deviation
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course flight crew : took evasive action other
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation other

Narrative:

While being vectored in IMC for ILS 02R at bna, GPWS/terrain warning occurred, first officer flying. Immediately initiated a climb until warning ceased. Leveled at 3500 ft MSL. Captain notified ATC of alert and altitude change. ATC thought we were responding to a TCASII RA. Captain confirmed it was a GPWS/terrain warning and correctly verified altimeter settings. Radio altimeter indicated approximately 1600 ft AGL. Approach was continued to an uneventful landing. Note: on subsequent approach in VFR conditions, crew noticed hill with microwave antenna in the same area as previous GPWS alert.

Original NASA ASRS Text

Title: AN ACR MLG CLBED IN RESPONSE TO A GPWS WARNING.

Narrative: WHILE BEING VECTORED IN IMC FOR ILS 02R AT BNA, GPWS/TERRAIN WARNING OCCURRED, FO FLYING. IMMEDIATELY INITIATED A CLB UNTIL WARNING CEASED. LEVELED AT 3500 FT MSL. CAPT NOTIFIED ATC OF ALERT AND ALT CHANGE. ATC THOUGHT WE WERE RESPONDING TO A TCASII RA. CAPT CONFIRMED IT WAS A GPWS/TERRAIN WARNING AND CORRECTLY VERIFIED ALTIMETER SETTINGS. RADIO ALTIMETER INDICATED APPROX 1600 FT AGL. APCH WAS CONTINUED TO AN UNEVENTFUL LNDG. NOTE: ON SUBSEQUENT APCH IN VFR CONDITIONS, CREW NOTICED HILL WITH MICROWAVE ANTENNA IN THE SAME AREA AS PREVIOUS GPWS ALERT.

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.