Aircraft taxi from parking gate to hangar without clearance.

Attributes
ACN	276171
Time
Date	199407
Day	Sat
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : anc
State Reference	AK
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air taxi
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 135
Flight Phase	ground : parked
Flight Plan	IFR
Person 1
Affiliation	company : air taxi
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 310 flight time total : 16850 flight time type : 4200
ASRS Report	276171
Person 2
Affiliation	company : air taxi
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	non adherence : far
Independent Detector	other flight crewa
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I had just finished a part 135 commuter flight into anc airport. I was parked at gate and had deplaned all passenger. After unloading I started engine #1 to taxi back to our hangar at lake hood. I called anc ground on 121.9 and requested taxi clearance to lake hood. I got no response. I waited and called again with no response. After a third call unanswered, I taxied slowly back to our hangar without incident. (No intxns or crossing runways.) after XB00 pm the tower goes to reduced manning and 1 person tries to handle anc tower and ground and lake hood tower and ground. It is often still quite busy with lots of traffic and the controller is overtaxed, resulting in long delays and blocked communications. They should not go to reduced manning until later on when traffic is less. Possibly XC00 or later.

Original NASA ASRS Text

Title: ACFT TAXI FROM PARKING GATE TO HANGAR WITHOUT CLRNC.

Narrative: I HAD JUST FINISHED A PART 135 COMMUTER FLT INTO ANC ARPT. I WAS PARKED AT GATE AND HAD DEPLANED ALL PAX. AFTER UNLOADING I STARTED ENG #1 TO TAXI BACK TO OUR HANGAR AT LAKE HOOD. I CALLED ANC GND ON 121.9 AND REQUESTED TAXI CLRNC TO LAKE HOOD. I GOT NO RESPONSE. I WAITED AND CALLED AGAIN WITH NO RESPONSE. AFTER A THIRD CALL UNANSWERED, I TAXIED SLOWLY BACK TO OUR HANGAR WITHOUT INCIDENT. (NO INTXNS OR XING RWYS.) AFTER XB00 PM THE TWR GOES TO REDUCED MANNING AND 1 PERSON TRIES TO HANDLE ANC TWR AND GND AND LAKE HOOD TWR AND GND. IT IS OFTEN STILL QUITE BUSY WITH LOTS OF TFC AND THE CTLR IS OVERTAXED, RESULTING IN LONG DELAYS AND BLOCKED COMS. THEY SHOULD NOT GO TO REDUCED MANNING UNTIL LATER ON WHEN TFC IS LESS. POSSIBLY XC00 OR LATER.

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.