As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) PILOT REPORTED THAT FLAPS WOULD NOT EXTEND TO SELECTED POSITION. THEY WOULD FALL 2-4 DEGREES SHORT OF SELECTED POSITION. RETRACTION WAS OKAY. INVESTIGATION BY MAINTENANCE REVEALED THAT AFT RIG PINS FOR FLAP SELECTION CABLE LEVER AND QUADRANT ASSEMBLY WOULD NOT FIT WHEN THE SELECTOR RIG PIN WAS INSTALLED. FURTHER INVESTIGATION REVEALED A BROKEN FLAP SELECTOR CABLE IN THE ROOF OF THE FUSELAGE AT STATION 74.