Mcdonnell douglas first officer reported a jammed flap lever; which was eventually freed.

Attributes
ACN	1584679
Time
Date	201810
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	Marginal
Aircraft 1
Make Model Name	McDonnell Douglas Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Initial Approach
Flight Plan	IFR
Component
Aircraft Component	Flap/Slat Control System
Person 1
Function	First Officer Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine
Events
Anomaly	Aircraft Equipment Problem Less Severe

Narrative:

Descending into ZZZ for an ILS approach. We were already configured with slats extended and upon calling for flaps 15 we could not get the flap lever to move out of the slats extend position. After multiple attempts at operating the flap lever with no results; we executed an uneventful go around. We then took delay vectors while running appropriate checklists. After further attempts at manipulating the flap lever we were able to free it and the flaps operated normally for the remainder of the flight. We then executed a normal approach and landing at ZZZ.unsure of cause. Seemed like the flap lever was hung up somehow.

Original NASA ASRS Text

Title: McDonnell Douglas First Officer reported a jammed flap lever; which was eventually freed.

Narrative: Descending into ZZZ for an ILS approach. We were already configured with slats extended and upon calling for flaps 15 we could not get the flap lever to move out of the slats extend position. After multiple attempts at operating the flap lever with no results; we executed an uneventful go around. We then took delay vectors while running appropriate checklists. After further attempts at manipulating the flap lever we were able to free it and the flaps operated normally for the remainder of the flight. We then executed a normal approach and landing at ZZZ.Unsure of cause. Seemed like the flap lever was hung up somehow.

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.