ATC unable to contact flight crew of B757-200 for extended period due to loss of communication. Intercept launched. Communication re-established before intercept occurs.

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Attributes
ACN	595489
Time
Date	200310
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : buf.airport
State Reference	NY
Altitude	msl single value : 35000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zny.artcc
Operator	common carrier : air carrier
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : zny.artcc
Operator	other
Make Model Name	Military
Operating Under FAR Part	Part 91
Flight Phase	cruise : level
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 150 flight time total : 16000
ASRS Report	595489
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	atc equipment other atc equipment : radar
Resolutory Action	flight crew : overcame equipment problem other
Supplementary
Problem Areas	Aircraft Environmental Factor Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

Inadvertently lost communication with center. Attempts by company, SELCAL, not received. Attempts by company to contact aircraft with ACARS not successful. ACARS screen was accidentally covered by flight plan. Audio chime not heard, indicating awaiting messages. Norad launched intercept aircraft. Established communication with center, no intercept.

Original NASA ASRS Text

Title: ATC UNABLE TO CONTACT FLT CREW OF B757-200 FOR EXTENDED PERIOD DUE TO LOSS OF COM. INTERCEPT LAUNCHED. COM RE-ESTABLISHED BEFORE INTERCEPT OCCURS.

Narrative: INADVERTENTLY LOST COM WITH CTR. ATTEMPTS BY COMPANY, SELCAL, NOT RECEIVED. ATTEMPTS BY COMPANY TO CONTACT ACFT WITH ACARS NOT SUCCESSFUL. ACARS SCREEN WAS ACCIDENTALLY COVERED BY FLT PLAN. AUDIO CHIME NOT HEARD, INDICATING AWAITING MESSAGES. NORAD LAUNCHED INTERCEPT ACFT. ESTABLISHED COM WITH CTR, NO INTERCEPT.

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.