A319 flight crew reports engine overheat during takeoff and loud bang as nose gear is retracted.

Attributes
ACN	788437
Time
Date	200805
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	msl single value : 8000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : zzz.tower artcc : zzz.artcc
Operator	common carrier : air carrier
Make Model Name	A319
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	788437
Events
Anomaly	aircraft equipment problem : less severe
Independent Detector	other flight crewa
Resolutory Action	flight crew : declared emergency none taken : anomaly accepted
Consequence	other
Supplementary
Problem Areas	Airport Aircraft
Primary Problem	Ambiguous

Narrative:

During takeoff just after V1; left engine overheat. Continue takeoff; positive rate; gear up. As gear retracted; loud bang seemed to come from under floor. First thought; nosewheel tire failure. Upon climb out; reduced to climb power. Engine overheat went out. At this time we thought 2 separate occurrences. We still thought we might have a nosewheel tire problem. Being overweight to land; elevation at ZZZ; conferred with dispatch; continued to ZZZ1. Upon arrival at ZZZ1; declared an emergency; did low altitude flyby runway for visual inspection. Gear appeared down and locked; visual inspection appeared normal. Proceeded with a normal landing. Prepped flight attendants and passenger for normal landing. Upon inspection from emergency personnel after landing; taxied to gate. Callback conversation with reporter revealed the following information: maintenance could find no faults with the nose gear and surmised that the very high takeoff speeds at the departure airport may have been a factor that caused the nose gear to bang when retracted.

Original NASA ASRS Text

Title: A319 FLT CREW REPORTS ENGINE OVERHEAT DURING TKOF AND LOUD BANG AS NOSE GEAR IS RETRACTED.

Narrative: DURING TKOF JUST AFTER V1; L ENG OVERHEAT. CONTINUE TKOF; POSITIVE RATE; GEAR UP. AS GEAR RETRACTED; LOUD BANG SEEMED TO COME FROM UNDER FLOOR. FIRST THOUGHT; NOSEWHEEL TIRE FAILURE. UPON CLBOUT; REDUCED TO CLB PWR. ENG OVERHEAT WENT OUT. AT THIS TIME WE THOUGHT 2 SEPARATE OCCURRENCES. WE STILL THOUGHT WE MIGHT HAVE A NOSEWHEEL TIRE PROB. BEING OVERWT TO LAND; ELEVATION AT ZZZ; CONFERRED WITH DISPATCH; CONTINUED TO ZZZ1. UPON ARR AT ZZZ1; DECLARED AN EMER; DID LOW ALT FLYBY RWY FOR VISUAL INSPECTION. GEAR APPEARED DOWN AND LOCKED; VISUAL INSPECTION APPEARED NORMAL. PROCEEDED WITH A NORMAL LNDG. PREPPED FLT ATTENDANTS AND PAX FOR NORMAL LNDG. UPON INSPECTION FROM EMER PERSONNEL AFTER LNDG; TAXIED TO GATE. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: MAINTENANCE COULD FIND NO FAULTS WITH THE NOSE GEAR AND SURMISED THAT THE VERY HIGH TKOF SPEEDS AT THE DEPARTURE ARPT MAY HAVE BEEN A FACTOR THAT CAUSED THE NOSE GEAR TO BANG WHEN RETRACTED.

Data retrieved from NASA's ASRS site as of May 2009 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.