B757 captain reported receiving a ground proximity alert while executing a 360-degree turn due to be...

Attributes
ACN	1523316
Time
Date	201803
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZZ.Airport
State Reference	FO
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Flight Phase	Initial Approach
Flight Plan	IFR
Person 1
Function	Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Deviation - Procedural Published Material / Policy Inflight Event / Encounter CFTT / CFIT Inflight Event / Encounter Unstabilized Approach

Narrative:

Set up and briefed GPS approach. Unable to get lower altitude due to frequency congestion. When cleared for approach; the MDA altitude was set in window. When it became apparent we would not be able to get down; a 360 turn was requested to join final with a visual approach. I failed reset the altitude to the higher FAF altitude and continued descent until ground proximity alerted me to my error. A climb back to a higher altitude was made and a normal landing was completed.task saturation during transition from instrument approach to visual approach caused failure to change altitude target. If switching from IMC approach to a new type of approach; remember to set the correct target altitude in alert window.

Original NASA ASRS Text

Title: B757 Captain reported receiving a ground proximity alert while executing a 360-degree turn due to being too high on a GPS approach. Reporter recommended resetting the target descent altitude from MDA to FAF altitude when executing this maneuver.

Narrative: Set up and briefed GPS approach. Unable to get lower altitude due to frequency congestion. When cleared for approach; the MDA altitude was set in window. When it became apparent we would not be able to get down; a 360 turn was requested to join final with a visual approach. I failed reset the altitude to the higher FAF altitude and continued descent until ground proximity alerted me to my error. A climb back to a higher altitude was made and a normal landing was completed.Task saturation during transition from instrument approach to visual approach caused failure to change altitude target. If switching from IMC approach to a new type of approach; remember to set the correct target altitude in alert window.

Data retrieved from NASA's ASRS site 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.

B757 captain reported receiving a ground proximity alert while executing a 360-degree turn due to being too high on a GPS approach. Reporter recommended resetting the target descent altitude from MDA to FAF altitude when executing this maneuver.