Large transport temporarily loses communication with ARTCC in the lax area.

Attributes
ACN	207567
Time
Date	199204
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : sna
State Reference	CA
Altitude	msl bound lower : 24000 msl bound upper : 24000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zla
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	descent other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi pilot : flight engineer pilot : instrument pilot : commercial
Experience	flight time last 90 days : 100 flight time total : 8000 flight time type : 1200
ASRS Report	207567
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	non adherence other other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : overcame equipment problem other
Consequence	Other
Supplementary
Primary Problem	Navigational Facility
Air Traffic Incident	other

Narrative:

Level at 240 on kayoh arrival. Noticed radio was quiet, so asked for radio check. Center replied 'loud and clear.' approaching kayoh, asked for lower altitude, no reply. Became apparent we were lost on the frequency. Took several mins to re-establish contact. Had to take vectors off arrival to descend. No conflicts or other problems. Numerous NOTAMS for unauthorized radio xmissions in lax area. We wondered if we had been a victim.

Original NASA ASRS Text

Title: LGT TEMPORARILY LOSES COM WITH ARTCC IN THE LAX AREA.

Narrative: LEVEL AT 240 ON KAYOH ARR. NOTICED RADIO WAS QUIET, SO ASKED FOR RADIO CHK. CTR REPLIED 'LOUD AND CLR.' APCHING KAYOH, ASKED FOR LOWER ALT, NO REPLY. BECAME APPARENT WE WERE LOST ON THE FREQ. TOOK SEVERAL MINS TO RE-ESTABLISH CONTACT. HAD TO TAKE VECTORS OFF ARR TO DSND. NO CONFLICTS OR OTHER PROBLEMS. NUMEROUS NOTAMS FOR UNAUTHORIZED RADIO XMISSIONS IN LAX AREA. WE WONDERED IF WE HAD BEEN A VICTIM.

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.