MD80 crew was given a heading to go direct to a VOR. A frequency change was missed resulting in a communication failure. Crew continued on assigned clearance until instructed to change frequency by company ACARS.

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Attributes
ACN	406696
Time
Date	199806
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : air
State Reference	OH
Altitude	msl bound lower : 35000 msl bound upper : 35000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zid tower : ric
Operator	common carrier : air carrier
Make Model Name	MD-80 Super 80
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	cruise other
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	406696
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
ASRS Report	407280
Events
Anomaly	airspace violation : entry non adherence : clearance other anomaly other other anomaly other
Independent Detector	other other : unspecified
Resolutory Action	flight crew : exited penetrated airspace
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Operational Deviation

Narrative:

Somehow ended up on wrong frequency. Don't know how or why. We do not recall missing a handoff. Notified by ACARS to contact center on 133.77. Our last frequency was 135.77. The controller on 133.77 chastised us for encroaching upon a military area that was hot. We found this most interesting since our last clearance had been fly a 250 heading for pocket city direct when able, which we were doing. At the time we were on the 250 degree heading not yet receiving pocket city.

Original NASA ASRS Text

Title: MD80 CREW WAS GIVEN A HDG TO GO DIRECT TO A VOR. A FREQ CHANGE WAS MISSED RESULTING IN A COM FAILURE. CREW CONTINUED ON ASSIGNED CLRNC UNTIL INSTRUCTED TO CHANGE FREQ BY COMPANY ACARS.

Narrative: SOMEHOW ENDED UP ON WRONG FREQ. DON'T KNOW HOW OR WHY. WE DO NOT RECALL MISSING A HDOF. NOTIFIED BY ACARS TO CONTACT CTR ON 133.77. OUR LAST FREQ WAS 135.77. THE CTLR ON 133.77 CHASTISED US FOR ENCROACHING UPON A MIL AREA THAT WAS HOT. WE FOUND THIS MOST INTERESTING SINCE OUR LAST CLRNC HAD BEEN FLY A 250 HDG FOR POCKET CITY DIRECT WHEN ABLE, WHICH WE WERE DOING. AT THE TIME WE WERE ON THE 250 DEG HDG NOT YET RECEIVING POCKET CITY.

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.