A B727 hit its tailskid on rotation at lga.

Attributes
ACN	266185
Time
Date	199403
Day	Fri
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : lga
State Reference	NY
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B727 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	climbout : takeoff
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 150 flight time total : 8600 flight time type : 1000
ASRS Report	266185
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : less severe conflict : ground less severe other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : anomaly accepted
Consequence	other
Supplementary
Primary Problem	Airport
Air Traffic Incident	Pilot Deviation other
Situations
Airport	other physical facility

Narrative:

I was the first officer and PF on a boeing 727 departing runway 4 at lga. There was a significant crosswind (320 at 20). The #2 throttle was advanced a little slower than usual to avoid a compressor stall. The rotation was started after the PNF called V1, vr. Both the speed and angle of rotation were normal. The aircraft lifted off at the intersection of runways 4 and 13. This intersection is extremely rough. Since the captain agreed that there was nothing unusual about the rotation, neither one of us had any idea that we had struck the tailskid. I did feel the usual jolt at the runway intersection. I think that at the normal takeoff deck angle, the main gear struts, while normally extended at this point, were compressed by the 'bump' thereby causing the tailskid to contact the runway. It's hard to imagine the condition of the runway at lga until you have ridden over them. The bumps on runway 13 are more than just annoying -- they are painful.

Original NASA ASRS Text

Title: A B727 HIT ITS TAILSKID ON ROTATION AT LGA.

Narrative: I WAS THE FO AND PF ON A BOEING 727 DEPARTING RWY 4 AT LGA. THERE WAS A SIGNIFICANT XWIND (320 AT 20). THE #2 THROTTLE WAS ADVANCED A LITTLE SLOWER THAN USUAL TO AVOID A COMPRESSOR STALL. THE ROTATION WAS STARTED AFTER THE PNF CALLED V1, VR. BOTH THE SPD AND ANGLE OF ROTATION WERE NORMAL. THE ACFT LIFTED OFF AT THE INTXN OF RWYS 4 AND 13. THIS INTXN IS EXTREMELY ROUGH. SINCE THE CAPT AGREED THAT THERE WAS NOTHING UNUSUAL ABOUT THE ROTATION, NEITHER ONE OF US HAD ANY IDEA THAT WE HAD STRUCK THE TAILSKID. I DID FEEL THE USUAL JOLT AT THE RWY INTXN. I THINK THAT AT THE NORMAL TKOF DECK ANGLE, THE MAIN GEAR STRUTS, WHILE NORMALLY EXTENDED AT THIS POINT, WERE COMPRESSED BY THE 'BUMP' THEREBY CAUSING THE TAILSKID TO CONTACT THE RWY. IT'S HARD TO IMAGINE THE CONDITION OF THE RWY AT LGA UNTIL YOU HAVE RIDDEN OVER THEM. THE BUMPS ON RWY 13 ARE MORE THAN JUST ANNOYING -- THEY ARE PAINFUL.

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.