Narrative:

On final approach and on speed, lowered flaps 35 degrees and I noted considerable aileron binding as flaps traveled to 35 degrees and at same time heard snap under floor of cockpit. Noted flap indicator indicating flaps 35 degrees. GPWS went off shortly after that and bellowed 'flaps.' aileron input to hold aircraft aligned with runway was about 45 degrees left aileron. Landed aircraft and asked first officer not to retract flaps. Taxied to terminal, inspected flaps and called maintenance. Outcome: inboard trailing edge aft flap bearing attach points failed causing considerable aileron binding. Callback conversation with reporter revealed the following information: the reporter stated he was flying a beech 1900C aircraft and this was the second flap failure incident he has experienced. He also reports that 6 failures of these aft flap bearing attach point fittings have occurred in his airline. He reported this history to the FAA and NTSB but has had no reply. The FAA has not contacted the reporter regarding this incident.

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Original NASA ASRS Text

Title: A BEECH 1900C ON APCH TO LNDG EXPERIENCED L INBOARD FLAP FAILURE REQUIRING 45 DEGS OF AILERON INPUT TO KEEP ACFT ALIGNED.

Narrative: ON FINAL APCH AND ON SPD, LOWERED FLAPS 35 DEGS AND I NOTED CONSIDERABLE AILERON BINDING AS FLAPS TRAVELED TO 35 DEGS AND AT SAME TIME HEARD SNAP UNDER FLOOR OF COCKPIT. NOTED FLAP INDICATOR INDICATING FLAPS 35 DEGS. GPWS WENT OFF SHORTLY AFTER THAT AND BELLOWED 'FLAPS.' AILERON INPUT TO HOLD ACFT ALIGNED WITH RWY WAS ABOUT 45 DEGS L AILERON. LANDED ACFT AND ASKED FO NOT TO RETRACT FLAPS. TAXIED TO TERMINAL, INSPECTED FLAPS AND CALLED MAINT. OUTCOME: INBOARD TRAILING EDGE AFT FLAP BEARING ATTACH POINTS FAILED CAUSING CONSIDERABLE AILERON BINDING. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED HE WAS FLYING A BEECH 1900C ACFT AND THIS WAS THE SECOND FLAP FAILURE INCIDENT HE HAS EXPERIENCED. HE ALSO RPTS THAT 6 FAILURES OF THESE AFT FLAP BEARING ATTACH POINT FITTINGS HAVE OCCURRED IN HIS AIRLINE. HE RPTED THIS HISTORY TO THE FAA AND NTSB BUT HAS HAD NO REPLY. THE FAA HAS NOT CONTACTED THE RPTR REGARDING THIS INCIDENT.

Data retrieved from NASA's ASRS site as of July 2007 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.