After takeoff; a B737-900 first officer noted significant right aileron trim was required to maintai...

Attributes
ACN	1321022
Time
Date	201512
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	B737-900
Operating Under FAR Part	Part 121
Flight Phase	Initial Climb
Flight Plan	IFR
Component
Aircraft Component	Trailing Edge Flap
Person 1
Function	Pilot Flying First Officer
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 181 Flight Crew Type 7395
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

We took off and just after liftoff I felt like the plane was not performing well. We were in a turn and I wasn't sure if it was just the turbulence or if it was actually something wrong. As we leveled the wings I realized that there really was a problem with the plane. It was requiring substantial right aileron to maintain level flight. We leveled off at 15;000 to trouble shoot the problem. After discussing it with maintenance we elected to return to the departure airport. After a smooth overweight landing we were told by maintenance that we had a flap broken and hanging off the back of the wing.

Original NASA ASRS Text

Title: After takeoff; a B737-900 First Officer noted significant right aileron trim was required to maintain level flight after takeoff. The flight returned to the departure airport where a trailing edge flap was found partially detached and hanging off the wing.

Narrative: We took off and just after liftoff I felt like the plane was not performing well. We were in a turn and I wasn't sure if it was just the turbulence or if it was actually something wrong. As we leveled the wings I realized that there really was a problem with the plane. It was requiring substantial right aileron to maintain level flight. We leveled off at 15;000 to trouble shoot the problem. After discussing it with maintenance we elected to return to the departure airport. After a smooth overweight landing we were told by maintenance that we had a flap broken and hanging off the back of the wing.

Data retrieved from NASA's ASRS site 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.

After takeoff; a B737-900 first officer noted significant right aileron trim was required to maintain level flight after takeoff. The flight returned to the departure airport where a trailing edge flap was found partially detached and hanging off the wing.