Air carrier medium large transport aircraft radio communication failed for a few mins at high cruise altitude resulting in the flight crew using their transponder identify feature to acknowledge transmissions until communication was restored.

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Attributes
ACN	208407
Time
Date	199204
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : iah
State Reference	TX
Altitude	msl bound lower : 33000 msl bound upper : 33000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zhu artcc : zdc
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : second officer
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 200 flight time total : 10000 flight time type : 200
ASRS Report	208407
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : less severe other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : overcame equipment problem
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

After experiencing generator loss, had loss of communication situation. Lasted about 10 mins. Communication returned but intermittent. On some cases, had to acknowledge by identify. Did not deviate from altitude on route.

Original NASA ASRS Text

Title: ACR MLG ACFT RADIO COM FAILED FOR A FEW MINS AT HIGH CRUISE ALT RESULTING IN THE FLC USING THEIR TRANSPONDER IDENT FEATURE TO ACKNOWLEDGE TRANSMISSIONS UNTIL COM WAS RESTORED.

Narrative: AFTER EXPERIENCING GENERATOR LOSS, HAD LOSS OF COM SITUATION. LASTED ABOUT 10 MINS. COM RETURNED BUT INTERMITTENT. ON SOME CASES, HAD TO ACKNOWLEDGE BY IDENT. DID NOT DEVIATE FROM ALT ON RTE.

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.