B737 crew near hec enter a restr area after receiving clearance to deviate around a WX cell.

Attributes
ACN	627405
Time
Date	200408
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : hec.vortac
State Reference	CA
Altitude	msl single value : 22000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zla.artcc
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Navigation In Use	other vortac
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Experience	flight time last 90 days : 240 flight time total : 9500 flight time type : 3000
ASRS Report	627405
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	airspace violation : entry inflight encounter : weather non adherence : required legal separation non adherence : published procedure other spatial deviation
Independent Detector	atc equipment other atc equipment : radar/ mode c aircraft equipment other aircraft equipment : wx radar other controllera other flight crewa other flight crewb
Resolutory Action	controller : issued new clearance controller : issued advisory flight crew : exited adverse environment flight crew : declared emergency none taken : detected after the fact
Consequence	other
Supplementary
Problem Areas	ATC Human Performance Weather
Primary Problem	Weather
Air Traffic Incident	Operational Deviation

Narrative:

On a flight to bur we encountered a cell over the hec VOR. We asked ZLA which direction was the best to avoid the cell. She responded we could go 15 degrees to the right or 25 degrees to the left. The deviation required exceeded 15 degrees right so we opted for the left deviation. The controller cleared us to deviate. We were on an approximately 200 degree heading for a few mins when she said we were entering restr airspace. We were surprised as we asked her about our 200 degree heading and she said it was fine. We squawked 7700 for approximately 5 mins. The controller asked us to turn 90 degrees to the right which we were unable to do at that time. When we cleared the cell, we proceeded direct pmd VOR. We felt the controller did not clearly communicate how our flight path would penetrate restr airspace. To prevent this event in the future, pilot/dispatch communication for a better route would improve safety and efficiency.

Original NASA ASRS Text

Title: B737 CREW NEAR HEC ENTER A RESTR AREA AFTER RECEIVING CLRNC TO DEVIATE AROUND A WX CELL.

Narrative: ON A FLT TO BUR WE ENCOUNTERED A CELL OVER THE HEC VOR. WE ASKED ZLA WHICH DIRECTION WAS THE BEST TO AVOID THE CELL. SHE RESPONDED WE COULD GO 15 DEGS TO THE R OR 25 DEGS TO THE L. THE DEV REQUIRED EXCEEDED 15 DEGS R SO WE OPTED FOR THE L DEV. THE CTLR CLRED US TO DEVIATE. WE WERE ON AN APPROX 200 DEG HDG FOR A FEW MINS WHEN SHE SAID WE WERE ENTERING RESTR AIRSPACE. WE WERE SURPRISED AS WE ASKED HER ABOUT OUR 200 DEG HDG AND SHE SAID IT WAS FINE. WE SQUAWKED 7700 FOR APPROX 5 MINS. THE CTLR ASKED US TO TURN 90 DEGS TO THE R WHICH WE WERE UNABLE TO DO AT THAT TIME. WHEN WE CLRED THE CELL, WE PROCEEDED DIRECT PMD VOR. WE FELT THE CTLR DID NOT CLRLY COMMUNICATE HOW OUR FLT PATH WOULD PENETRATE RESTR AIRSPACE. TO PREVENT THIS EVENT IN THE FUTURE, PLT/DISPATCH COM FOR A BETTER RTE WOULD IMPROVE SAFETY AND EFFICIENCY.

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.