SDR DALA2016021000994

Service difficulty report · Ball Screw · Boeing 75726D

Difficulty date: February 10, 2016
Submitted: February 12, 2016
Operation: Air carrier
Aircraft: N823DX
Make and model: Boeing 75726D
Aircraft serial: 33967
Aircraft time: 25,839 hours, 15,429 cycles
System (JASC): 2750 · Trailing Edge Flap Control System
Part: Ball Screw
Condition: Corroded
Location: Lt Wing Te Flaps
Stage of operation: IN
How discovered: 9
Nature of condition: O
Precautionary procedure: K

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

What was found

LEFT WING, OTBD FLAP, OTBD BALLSCREW NR 1 HAS CORROSION INSIDE THE BUSHING POST. PROCURED LT WING OTBB FLAP OTBD BALLSCREW NR 1 POSITION PN 7900067, SN 4114, REMOVAL, INSTALLATION, AND OPS CHECK COMPLIED WITH ON NR 2751-2538. REMOVED LT WING OTBD FLAP OTBD BALLSCREW NR 1 POS PN 7829995, SN 0199. PROCURED LT WING OTBD FLAP, OTBD BALLSCREW NR 1 POSITION, PN 7900067, SN 4114, REMOVAL, INSTALLATION AND OP'S CK COMPLIED WITH ON CARD 2751-2538. REMOVED LT WING OTBD FLAP OTBD BALLSCREW NR 1 POSITION PN 7829995, SN 0199.

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