A320
Flight Crew Air Transport Pilot (ATP)
Confusion
Aircraft Equipment Problem Critical; Inflight Event / Encounter Other / Unknown
Flight Crew Landed in Emergency Condition; General Declared Emergency
Chart Or Publication; Aircraft
While on approach to Runway XX at ZZZ; flap handle broke and stuck at [Position]-2. Initiated go-around to reference paper procedure and select longer runway. We [advised ATC] at this time; and requested fire trucks. Normal landing at Flaps-2 without excessive brake temperatures.  Airline Transport Pilot.
Reporter stated this was a situation where the aircraft doesn't know it was broken. A non-ECAM Abnormal situation and no QRH reference procedure. All systems were functioning on the A320; except that he could not move the flap handle from Position-2 (14-degrees Flaps). A spring loaded Release Collar under the Flap Handle knob must be pulled out (pulled-up) out of detent; to allow the Flap lever to move past the balks (gates) on the Center Pedestal. But; the Release Collar was flopping around and could not be pulled up; preventing flap lever movement.  Flaps were stuck at Position-2. Alternate Electric Flaps are not available on the A320.
A Captain reports about a Release Collar under the Flap Handle knob of an A320 aircraft that broke while on approach. The spring loaded Release Collar was flopping around and would not lift out of the flap detent to allow the flap lever to be moved.  Flaps were stuck at Position-2 (14-degrees Flaps). Go-around initiated and aircraft landed in emergency condition.