B737 flight crew experiences an egpws caution during descent to 2;400 ft on the ILS 14R at oma and a...

Attributes
ACN	1065382
Time
Date	201302
Local Time Of Day	1801-2400
Place
Locale Reference	OMA.Airport
State Reference	NE
Environment
Flight Conditions	IMC
Light	Night
Aircraft 1
Make Model Name	B737-700
Operating Under FAR Part	Part 121
Flight Phase	Initial Approach
Flight Plan	IFR
Component
Aircraft Component	GPWS
Person 1
Function	First Officer Pilot Flying
Experience	Flight Crew Last 90 Days 180
Person 2
Function	Captain Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 114
Events
Anomaly	Aircraft Equipment Problem Less Severe Inflight Event / Encounter CFTT / CFIT

Narrative:

Cleared for ILS 14R oma. ATC directed maintain 3;000 ft until localizer capture. Got localizer capture outside otsee (3000A). At otsee; captain rolled altitude to 2;400 ft; which was for zatar (2400A). At approximately 2;500 ft and one to two miles from zatar just about to capture 2;400 ft; we received a caution obstacle. Executed a go-around and then back to an ILS to same runway. This time we captured glideslope at 3;000 ft. It was an uneventful approach and landing. There is a tower at just under 400 ft AGL; 1;352 ft MSL; just short of zatar. Even though we complied with the approach altitude requirements; the combination of our altitude and descent rate must have caused the caution obstacle alert. This is my best guess. Next time around we captured the glideslope at 3;000 ft and the approach went fine.

Original NASA ASRS Text

Title: B737 flight crew experiences an EGPWS caution during descent to 2;400 FT on the ILS 14R at OMA and a go around is initiated. On the second approach the glideslope is captured at 3;000 FT and the approach is completed without difficulty.

Narrative: Cleared for ILS 14R OMA. ATC directed maintain 3;000 FT until localizer capture. Got LOC capture outside OTSEE (3000A). At OTSEE; Captain rolled altitude to 2;400 FT; which was for ZATAR (2400A). At approximately 2;500 FT and one to two miles from ZATAR just about to capture 2;400 FT; we received a Caution Obstacle. Executed a go-around and then back to an ILS to same runway. This time we captured glideslope at 3;000 FT. It was an uneventful approach and landing. There is a Tower at just under 400 FT AGL; 1;352 FT MSL; just short of ZATAR. Even though we complied with the approach altitude requirements; the combination of our altitude and descent rate must have caused the Caution Obstacle alert. This is my best guess. Next time around we captured the glideslope at 3;000 FT and the approach went fine.

Data retrieved from NASA's ASRS site as of July 2013 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.

B737 flight crew experiences an egpws caution during descent to 2;400 ft on the ILS 14R at oma and a go around is initiated. On the second approach the glideslope is captured at 3;000 ft and the approach is completed without difficulty.