C152 pilot had electrical failure in N90 class B airspace.

Attributes
ACN	565973
Time
Date	200211
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : n90.tracon
State Reference	NY
Altitude	msl single value : 4500
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Controlling Facilities	tracon : n90.tracon
Operator	general aviation : instructional
Make Model Name	Cessna 152
Operating Under FAR Part	Part 91
Flight Phase	cruise : level
Flight Plan	VFR
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 20 flight time total : 154.1 flight time type : 154.1
ASRS Report	565973
Person 2
Affiliation	government : faa
Function	controller : approach
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : ammeter other flight crewa
Resolutory Action	flight crew : landed as precaution flight crew : diverted to another airport none taken : detected after the fact other
Consequence	faa : reviewed incident with flight crew other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Experienced electrical failure in-flight. Lost communication, VOR, and transponder. Cleared class B from jfk direct col. Flight originated from frg to pne. Cause of electrical failure was faulty relay between master switch and alternator. Diverted to blm then went back to frg. While at blm, spoke to manager at TRACON for possible waiver in case relay should pop a second time. Made it back to frg safely with everything working.

Original NASA ASRS Text

Title: C152 PLT HAD ELECTRICAL FAILURE IN N90 CLASS B AIRSPACE.

Narrative: EXPERIENCED ELECTRICAL FAILURE INFLT. LOST COM, VOR, AND XPONDER. CLRED CLASS B FROM JFK DIRECT COL. FLT ORIGINATED FROM FRG TO PNE. CAUSE OF ELECTRICAL FAILURE WAS FAULTY RELAY BTWN MASTER SWITCH AND ALTERNATOR. DIVERTED TO BLM THEN WENT BACK TO FRG. WHILE AT BLM, SPOKE TO MGR AT TRACON FOR POSSIBLE WAIVER IN CASE RELAY SHOULD POP A SECOND TIME. MADE IT BACK TO FRG SAFELY WITH EVERYTHING WORKING.

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.