SDR TWAA0008809

Service difficulty report · Floorbeam · Doug DC983

Difficulty date: May 26, 2000
Submitted: June 6, 2000
Operation: Air carrier
Aircraft: N9409F
Make and model: Doug DC983
Aircraft serial: 53121
Aircraft time: 22,081 hours, 11,316 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Condition: Corroded
Location: Fuselage
Stage of operation: IN
How discovered: V
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 CABIN CORROSION ON MEMBRANE AT LONGERON 18R, STA 1098 TO 1079 AND STA 1098 TO 1117. CUT OUT CORROSION AND FABRICATED DOUBLER FROM 0.025, 7075-T6 MATERIAL. INSTALLED DOUBLER WITH 1422 SEALANT AND 2 ROWS OF FASTENERS PER SRM 53-01 FIG 4, SHEET 3 AND 4 PAGE 18.

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