Narrative:

I was working OC3 and received a message in the error queue regarding aircraft X en route from scel (santiago; chile) to kriv. The aircraft was attempting cpdlc log on to kzak without success and made an HF position report through [commercial radio.] aircraft X was estimating 28n120w at XX00Z then direct ficky. There was no flight plan in the system and I called ZLA under direction from the supervisor and inquired if they had any information on the aircraft. ZLA did not have information on the aircraft and I hung up. I placed a range bearing line between the two fixes and it skirted OC3 airspace. I did not receive a transfer from mazatlan center and aircraft X was flying in uncontrolled airspace. The supervisor found a flight plan in the acer and stated he was flying up the coast through uncontrolled airspace. At that point; I deleted the messages and took no further action.a) I recommend that aircraft do not fly though uncontrolled airspace.B) I should have called [commercial radio] to confirm this aircraft's route of flight.C) I should have called ZLA back and forwarded pertinent information (call sign; fix; time; altitude) and had them block the airspace until aircraft X was radar identified.

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Original NASA ASRS Text

Title: ZOA Oceanic Controller describes situation where he knows there should be an aircraft; attempts to track down the aircraft through another Center. The other Center knows nothing about the aircraft. The Oceanic Supervisor finds the aircraft; and the controller does not advise the other Center of the aircrafts position.

Narrative: I was working OC3 and received a message in the Error Queue regarding Aircraft X en route from SCEL (Santiago; Chile) to KRIV. The aircraft was attempting CPDLC log on to KZAK without success and made an HF position report through [Commercial Radio.] Aircraft X was estimating 28N120W at XX00Z then direct FICKY. There was no flight plan in the system and I called ZLA under direction from the supervisor and inquired if they had any information on the aircraft. ZLA did not have information on the aircraft and I hung up. I placed a range bearing line between the two fixes and it skirted OC3 airspace. I did not receive a transfer from Mazatlan Center and Aircraft X was flying in uncontrolled airspace. The supervisor found a flight plan in the ACER and stated he was flying up the coast through uncontrolled airspace. At that point; I deleted the messages and took no further action.A) I recommend that aircraft do not fly though uncontrolled airspace.B) I should have called [Commercial Radio] to confirm this aircraft's route of flight.C) I should have called ZLA back and forwarded pertinent information (call sign; fix; time; altitude) and had them block the airspace until Aircraft X was radar identified.

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.