Large transport air carrier jet flight crew advise deviation due to WX and are assigned code 7700 by ZAB for expected A-231 MOA penetration. Returned to original departure code exiting MOA.

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Attributes
ACN	589555
Time
Date	200307
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	intersection : karlo
State Reference	AZ
Altitude	msl single value : 20000
Environment
Weather Elements	Thunderstorm
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zab.artcc
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	descent : intermediate altitude
Route In Use	arrival star : chily
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time total : 11500
ASRS Report	589555
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	airspace violation : entry inflight encounter : weather other anomaly other
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance flight crew : exited penetrated airspace flight crew : took precautionary avoidance action other
Supplementary
Problem Areas	Weather
Primary Problem	Weather
Air Traffic Incident	Inter Facility Coordination Failure

Narrative:

We needed about 40-50 degrees left off course, turn to avoid strong cumulus buildups in a solid ew line. High degree of frequency congestion with many acrs deviating for WX. Abq had us squawk 7700 as we would penetrate a MOA north of luke AFB. We were not, nor did we declare an emergency. After verification, we squawked 7700 for 5-10 mins until clear of WX and rejoined SID. Returned to normal IFR code.

Original NASA ASRS Text

Title: LGT ACR JET FLT CREW ADVISE DEV DUE TO WX AND ARE ASSIGNED CODE 7700 BY ZAB FOR EXPECTED A-231 MOA PENETRATION. RETURNED TO ORIGINAL DEP CODE EXITING MOA.

Narrative: WE NEEDED ABOUT 40-50 DEGS L OFF COURSE, TURN TO AVOID STRONG CUMULUS BUILDUPS IN A SOLID EW LINE. HIGH DEGREE OF FREQ CONGESTION WITH MANY ACRS DEVIATING FOR WX. ABQ HAD US SQUAWK 7700 AS WE WOULD PENETRATE A MOA N OF LUKE AFB. WE WERE NOT, NOR DID WE DECLARE AN EMER. AFTER VERIFICATION, WE SQUAWKED 7700 FOR 5-10 MINS UNTIL CLR OF WX AND REJOINED SID. RETURNED TO NORMAL IFR CODE.

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.