SDR TWAA0003910

Service difficulty report · Floorboard · Doug DC931

Difficulty date: March 6, 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): 5321 · Fuselage Floor Panel
Part: Floorboard
Condition: Cracked
Location: Fuselage
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, CABIN FLOOR PANEL 11, TOP SIDE HAD CORROSION IN SEVERAL AREAS. FABRICATED NEW FLOOR PANEL USING OLD PANEL AS A TEMPLATE. USED 2024-T3, 0.063 FOR PANEL. USED 0.032, 7075-T6 FOR HAT SECTION. NAS1097AD RIVETS WERE USED PER SSRM 53-00-104, PAGE 201.

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