Pilot of small aircraft flew through lax corridor VFR, through the TCA, without an operative transpo...

Attributes
ACN	127722
Time
Date	198911
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : lax airport : lgb
State Reference	CA
Altitude	msl bound lower : 3500 msl bound upper : 3500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : lax
Operator	general aviation : instructional
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	cruise other landing other
Route In Use	approach : visual enroute other
Flight Plan	VFR
Person 1
Affiliation	Other
Function	flight crew : single pilot instruction : instructor oversight : pic
Qualification	pilot : instrument pilot : commercial pilot : cfi
Experience	flight time last 90 days : 50 flight time total : 1500 flight time type : 400
ASRS Report	127722
Person 2
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Events
Anomaly	aircraft equipment problem : less severe non adherence : far
Independent Detector	other other : unspecified cockpit
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation other

Narrative:

Training flight en route to santa paula, ca. The flight plan was thru the corridor over lax both coming and going. I noted that the transponder and mode C were not functioning at return to long beach. Upon departure and over long beach area, transponder light was functioning and the self test seemed to be working (from cockpit indication only), however, there was an electrical failure of some kind in flight. The only indication of failure was that the transponder wasn't functioning near flight completion. I probably went thru the lax corridor without a functioning transponder.

Original NASA ASRS Text

Title: PLT OF SMA FLEW THROUGH LAX CORRIDOR VFR, THROUGH THE TCA, WITHOUT AN OPERATIVE TRANSPONDER.

Narrative: TRAINING FLT ENRTE TO SANTA PAULA, CA. THE FLT PLAN WAS THRU THE CORRIDOR OVER LAX BOTH COMING AND GOING. I NOTED THAT THE XPONDER AND MODE C WERE NOT FUNCTIONING AT RETURN TO LONG BEACH. UPON DEP AND OVER LONG BEACH AREA, XPONDER LIGHT WAS FUNCTIONING AND THE SELF TEST SEEMED TO BE WORKING (FROM COCKPIT INDICATION ONLY), HOWEVER, THERE WAS AN ELECTRICAL FAILURE OF SOME KIND IN FLT. THE ONLY INDICATION OF FAILURE WAS THAT THE XPONDER WASN'T FUNCTIONING NEAR FLT COMPLETION. I PROBABLY WENT THRU THE LAX CORRIDOR WITHOUT A FUNCTIONING XPONDER.

Data retrieved from NASA's ASRS site as of August 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.

Pilot of small aircraft flew through lax corridor VFR, through the TCA, without an operative transponder.