<< >> NASA ASRS Report 113773, June 1989

TCA incursion.

Attributes
ACN	113773
Time
Date	198906
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : vtu airport : toa
State Reference	CA
Altitude	msl bound lower : 2000 msl bound upper : 2000
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : lax
Operator	general aviation : instructional
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Retractable Gear
Flight Phase	climbout : intermediate altitude
Flight Plan	None
Person 1
Affiliation	Other
Function	observation : observer
Qualification	pilot : cfi pilot : atp
Experience	flight time last 90 days : 100 flight time total : 4500 flight time type : 200
ASRS Report	113773
Person 2
Affiliation	Other
Function	flight crew : single pilot
Events
Anomaly	other anomaly other other anomaly other
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance flight crew : exited penetrated airspace other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Departing santa monica through a scattered cloud layer at 1100', the tower alerted the pilot that traffic (airplane?) was to the left. Traffic was not located visually. The plane was turned away from traffic. Los angeles approach on 134.9 was contacted for clearance through the shore line route to torrance, the pilot was informed that they would get back to him. The plane's VOR was set at 092 vtu. The needle pointed to vtu. At that time downward visibility was obstructed by a cloud layer, plane was in a shallow bank to turn north. After assignment of transponder code, los angeles approach alerted the pilot of indications the plane was in the TCA. The plane was immediately turned per directions of the los angeles approach and upon landing at torrance, ca and the los angeles approach was contacted by phone per their request. Contributing factor: 1) sudden loss of visual ground contact. 2) no radio navigation indication for ballona creek. 3) inaccuracy of a distant VOR station showing edge of TCA (requirements 6 degree +/- is not a narrow line as shown on the charts). Human error: 1) ATC delay in giving out a transponder code even though smo tower was notified before takeoff. 2) no vectors from smo tower on release to los angeles approach radio. 3) if a layout of the los angeles TCA is made using the 6 degree variation allowed, you will find that important areas of the los angeles TCA may not be protected with a cloud cover at 1100'.

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Original NASA ASRS Text

Title: TCA INCURSION.

Narrative: DEPARTING SANTA MONICA THROUGH A SCATTERED CLOUD LAYER AT 1100', THE TWR ALERTED THE PLT THAT TFC (AIRPLANE?) WAS TO THE LEFT. TFC WAS NOT LOCATED VISUALLY. THE PLANE WAS TURNED AWAY FROM TFC. LOS ANGELES APCH ON 134.9 WAS CONTACTED FOR CLRNC THROUGH THE SHORE LINE ROUTE TO TORRANCE, THE PLT WAS INFORMED THAT THEY WOULD GET BACK TO HIM. THE PLANE'S VOR WAS SET AT 092 VTU. THE NEEDLE POINTED TO VTU. AT THAT TIME DOWNWARD VISIBILITY WAS OBSTRUCTED BY A CLOUD LAYER, PLANE WAS IN A SHALLOW BANK TO TURN NORTH. AFTER ASSIGNMENT OF XPONDER CODE, LOS ANGELES APCH ALERTED THE PLT OF INDICATIONS THE PLANE WAS IN THE TCA. THE PLANE WAS IMMEDIATELY TURNED PER DIRECTIONS OF THE LOS ANGELES APCH AND UPON LNDG AT TORRANCE, CA AND THE LOS ANGELES APCH WAS CONTACTED BY PHONE PER THEIR REQUEST. CONTRIBUTING FACTOR: 1) SUDDEN LOSS OF VISUAL GND CONTACT. 2) NO RADIO NAV INDICATION FOR BALLONA CREEK. 3) INACCURACY OF A DISTANT VOR STATION SHOWING EDGE OF TCA (REQUIREMENTS 6 DEG +/- IS NOT A NARROW LINE AS SHOWN ON THE CHARTS). HUMAN ERROR: 1) ATC DELAY IN GIVING OUT A XPONDER CODE EVEN THOUGH SMO TWR WAS NOTIFIED BEFORE TKOF. 2) NO VECTORS FROM SMO TWR ON RELEASE TO LOS ANGELES APCH RADIO. 3) IF A LAYOUT OF THE LOS ANGELES TCA IS MADE USING THE 6 DEG VARIATION ALLOWED, YOU WILL FIND THAT IMPORTANT AREAS OF THE LOS ANGELES TCA MAY NOT BE PROTECTED WITH A CLOUD COVER AT 1100'.

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.