An air carrier flight crew and pct TRACON controller described their respective actions when the air...

Attributes
ACN	1457725
Time
Date	201706
Local Time Of Day	1201-1800
Place
Locale Reference	PCT.TRACON
State Reference	VA
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Make Model Name	Large Transport Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Route In Use	Vectors STAR FRDMM
Flight Plan	IFR
Component
Aircraft Component	Air/Ground Communication
Person 1
Function	Approach
Qualification	Air Traffic Control Fully Certified
Experience	Air Traffic Control Time Certified In Pos 1 (yrs) 14.5
Person 2
Function	Pilot Not Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Airspace Violation All Types Deviation - Procedural FAR Deviation - Track / Heading All Types

Narrative:

I asked if the instructor wanted to train; and that it was going to be a little busy. He said yes; I confirmed again that he was ok with it; and he agreed. It probably was too busy for a newer trainee. As the session progressed; I had another controller spin 2 aircraft for spacing. They were basing around a 15 mile final which is very typical; and not overly busy. I did check multiple times to ensure that the instructor was ok with the traffic; and he said yes. The aircraft was being [vectored] for space and given a 090 heading; which is normal. When the aircraft was issued the downwind heading he never answered. He was hailed numerous times; and the surrounding positions checked their frequencies to make sure he wasn't there along with the tower. The controllers went on the guard frequency with no response. The NORDO aircraft then flew through P56A. He eventually came back on the frequency on the other side of P56 and resumed being controlled to dca.aircraft should have a display of P56 within the cockpit so as to avoid it if they are NORDO or to question it if they believe they will enter it with the controller.

Original NASA ASRS Text

Title: An air carrier flight crew and PCT TRACON Controller described their respective actions when the aircraft became NORDO then flew through P-56 after one of the flight crew inadvertently changed the COM 1 frequency.

Narrative: I asked if the instructor wanted to train; and that it was going to be a little busy. He said yes; I confirmed again that he was ok with it; and he agreed. It probably was too busy for a newer trainee. As the session progressed; I had another controller spin 2 aircraft for spacing. They were basing around a 15 mile final which is very typical; and not overly busy. I did check multiple times to ensure that the instructor was ok with the traffic; and he said yes. The aircraft was being [vectored] for space and given a 090 heading; which is normal. When the aircraft was issued the downwind heading he never answered. He was hailed numerous times; and the surrounding positions checked their frequencies to make sure he wasn't there along with the tower. The controllers went on the guard frequency with no response. The NORDO aircraft then flew through P56A. He eventually came back on the frequency on the other side of P56 and resumed being controlled to DCA.Aircraft should have a display of P56 within the cockpit so as to avoid it if they are NORDO or to question it if they believe they will enter it with the controller.

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.

An air carrier flight crew and pct TRACON controller described their respective actions when the aircraft became NORDO then flew through P-56 after one of the flight crew inadvertently changed the communication 1 frequency.