SDR TWAA0003804

Service difficulty report · Floorbeam · Doug DC983

Difficulty date: February 28, 2000
Submitted: April 13, 2000
Operation: Air carrier
Aircraft: N9406W
Make and model: Doug DC983
Aircraft serial: 53126
Aircraft time: 22,306 hours, 10,547 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Condition: Corroded
Location: Bs 160 - 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 CHECK-C MAINT, FOUND CORROSION ON SUB FLOOR MEMBRANE AT STA 160 TO 200, LBL 6 IN TO RBL 53 INCHES. REPLACED SUB FLOOR MEMBRANE STA 160 TO 200, LBL 12 TO RBL 59, WITH 0.020 7075-T6, INSTALLED WITH SEALER AND 3 ROWS OF ATTACHMENT FASTENERS PER SRM 53-01, PAGE 18 FIG 4 SHEET 3.

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