An air carrier medium large transport over rotated on takeoff.

Attributes
ACN	277281
Time
Date	199407
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : ewr
State Reference	NJ
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-500
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	climbout : takeoff
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 95 flight time total : 24000 flight time type : 95
ASRS Report	277281
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 250 flight time total : 3100 flight time type : 310
ASRS Report	277446
Events
Anomaly	other anomaly other
Independent Detector	other other : unspecified
Resolutory Action	none taken : detected after the fact
Consequence	other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

On takeoff runway 11 newark, aft drain mast for lavatory drain was scraped on runway. The contributing factors were, the first officer over rotated due to the short runway and the extreme roughness of this runway about 2/3 to 3/4 of the way down. The aft drain mast was slightly scraped. No other damage to the aircraft. Supplemental information from acn 277446: aft lavatory drain mast had been dragged on takeoff. I am a new copilot on the B737-300/500, having spent the last 7 yrs as a B727 flight engineer. The shortness of the runway and the sight of the bridge and cranes off the departure end of the runway affected the timing and speed of rotation. Runway 11 is pretty bumpy due to age and some repaving on the crossing runway. This could have caused enough of an unintended increase in pitch during takeoff.

Original NASA ASRS Text

Title: AN ACR MLG OVER ROTATED ON TKOF.

Narrative: ON TKOF RWY 11 NEWARK, AFT DRAIN MAST FOR LAVATORY DRAIN WAS SCRAPED ON RWY. THE CONTRIBUTING FACTORS WERE, THE FO OVER ROTATED DUE TO THE SHORT RWY AND THE EXTREME ROUGHNESS OF THIS RWY ABOUT 2/3 TO 3/4 OF THE WAY DOWN. THE AFT DRAIN MAST WAS SLIGHTLY SCRAPED. NO OTHER DAMAGE TO THE ACFT. SUPPLEMENTAL INFO FROM ACN 277446: AFT LAVATORY DRAIN MAST HAD BEEN DRAGGED ON TKOF. I AM A NEW COPLT ON THE B737-300/500, HAVING SPENT THE LAST 7 YRS AS A B727 FE. THE SHORTNESS OF THE RWY AND THE SIGHT OF THE BRIDGE AND CRANES OFF THE DEP END OF THE RWY AFFECTED THE TIMING AND SPD OF ROTATION. RWY 11 IS PRETTY BUMPY DUE TO AGE AND SOME REPAVING ON THE XING RWY. THIS COULD HAVE CAUSED ENOUGH OF AN UNINTENDED INCREASE IN PITCH DURING TKOF.

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.