SDR TWAA0003928

Service difficulty report · Floorbeam · Doug DC931

Difficulty date: March 8, 2000
Submitted: April 13, 2000
Operation: Air carrier
Aircraft: N989Z
Make and model: Doug DC931
Aircraft serial: 47135
Aircraft time: 77,008 hours, 82,903 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Condition: Corroded
Location: Bs 200
Stage of operation: IN
How discovered: O
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

DURING OP 16 MAINT CHECK, FOUND FLOOR SUPPORT AT STA 200, JUST OTBD OF NUMBER 4 TRACK, HAD CORROSION. FABRICATED LIKE PART FROM 7075-T65 EXTRUSION PER IPC 53-11-1 PAGE 53. REMOVED CORROSION PER SPM 6-80-1. TREATED AND PAINTED PER SRM 51-10-3.

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