SDR TWAA0000513

Service difficulty report · Floor Pan · Doug DC983

Difficulty date: December 20, 1999
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N939AS
Make and model: Doug DC983
Aircraft serial: 49657
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Floor Pan
Condition: Corroded
Location: Bs 1107 - 1149
Stage of operation: IN
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 AT MEMBRANE FLOOR PAN ALONG LONGERON 18L, FROM STA 1107 THROUGH 1149. REMOVED LIGHT AND MODERATE CORROSION ON THE LT FLOOR MEMBRANE, LONGERON 18L FROM STA 1107 TO 1149 PER SPM 6-80-01, PAGE 1-3. REPAIRED AREA STA 1118 TO 1123 PER SRM 53- 01, FIG 4 SHEET 3 PAGE 18. TREATED AREA FROM STA 1107 TO 1149 LONGERON 18L FLOOR MEMBRANE PER SRM 51-10-3.

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