<< >> NASA ASRS Report 1477603, August 2017

Pc-12 pilot reported the EFIS displays flashed and went blank on approach; normal operation was regained by resetting electrical system.

Attributes
ACN	1477603
Time
Date	201708
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.TRACON
State Reference	NC
Environment
Light	Daylight
Aircraft 1
Make Model Name	PC-12
Operating Under FAR Part	Part 91
Flight Phase	Descent
Route In Use	Direct
Flight Plan	IFR
Component
Aircraft Component	Navigational Equipment and Processing
Person 1
Function	Captain Single Pilot
Qualification	Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument
Experience	Flight Crew Last 90 Days 250 Flight Crew Total 15000 Flight Crew Type 700
Events
Anomaly	Aircraft Equipment Problem Less Severe Inflight Event / Encounter Weather / Turbulence

Narrative:

[While] descending from FL210; going through heavy rain; fog; ice; at 13;000 ft; electrical EFIS/GPS displays flashed once; then again at 5;000 ft; then went blank at 4;000 ft as about to enter hold. Informed [ATC] of electrical issue; would not be able to complete ILS; stabilized at 4;000 ft in a right hand pattern hold; then reset electrical and all came back; made another lap in the hold; informed [ATC] to set me up for [the approach]; then proceeded on the approach; landed and informed maintenance of the incident and did an internal report.we replaced the number 1 generator and we will test fly tomorrow and verify all is okay.

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Original NASA ASRS Text

Title: PC-12 pilot reported the EFIS displays flashed and went blank on approach; normal operation was regained by resetting electrical system.

Narrative: [While] descending from FL210; going through heavy rain; fog; ice; at 13;000 FT; electrical EFIS/GPS displays flashed once; then again at 5;000 FT; then went blank at 4;000 FT as about to enter hold. Informed [ATC] of electrical issue; would not be able to complete ILS; stabilized at 4;000 FT in a right hand pattern hold; then reset electrical and all came back; made another lap in the hold; informed [ATC] to set me up for [the approach]; then proceeded on the approach; landed and informed maintenance of the incident and did an internal report.We replaced the number 1 generator and we will test fly tomorrow and verify all is okay.

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.