Flight crew failed to change clearance when required to swap aircraft from a B727 to a B737.

Attributes
ACN	523240
Time
Date	200108
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : atl.airport
State Reference	GA
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-800
Flight Phase	ground : taxi ground : preflight
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 150 flight time total : 11000 flight time type : 1100
ASRS Report	523240
Events
Anomaly	non adherence : published procedure non adherence : clearance
Resolutory Action	controller : issued new clearance none taken : detected after the fact
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

Called out to crew an aircraft substituted for a B727. Received a revised flight plan to account for new equipment. Received a pre departure clearance for our flight number, but didn't notice it was issued for the B727. ZTL tower controller caught the discrepancy before issuing takeoff clearance.

Original NASA ASRS Text

Title: FLT CREW FAILED TO CHANGE CLRNC WHEN REQUIRED TO SWAP ACFT FROM A B727 TO A B737.

Narrative: CALLED OUT TO CREW AN ACFT SUBSTITUTED FOR A B727. RECEIVED A REVISED FLT PLAN TO ACCOUNT FOR NEW EQUIP. RECEIVED A PDC FOR OUR FLT NUMBER, BUT DIDN'T NOTICE IT WAS ISSUED FOR THE B727. ZTL TWR CTLR CAUGHT THE DISCREPANCY BEFORE ISSUING TKOF CLRNC.

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.