SDR CA120227011

Service difficulty report · Flap System · Boeing 737*

Difficulty date: February 25, 2012
Submitted: September 14, 2015
Operation: General aviation
Make and model: Boeing 737*
Aircraft time: 28,001 hours
Engine: Cfmint CFM567B27
System (JASC): 2750 · Trailing Edge Flap Control System
Part: Flap System
Condition: Locked
Stage of operation: AP
How discovered: O
Nature of condition: J
Precautionary procedure: A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

(CAN) AN AIRCRAFT ON APPROACH DECLARED AN EMERGENCY LANDING WHEN THE FLIGHT CREW EXPERIENCED A FLAP ASYMMETRY CONDITION WHICH LOCKED THE FLAPS BETWEEN 25 AND 30 UNITS. THE ACFT MADE AN UNEVENTFUL LANDING AND WAS THEN MET BY MAINTENANCE. MAINTENANCE CARRIED OUT FIM TASK 27-51-836 AND FIM TASK 27-51-803 AND COULD NO FAULT SYSTEM. ACFT RETURNED TO SERVICE.