SDR TWAA0003722

Service difficulty report · Floorbeam · Doug DC931

Difficulty date: March 3, 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 - 218
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, FLOOR WEB AT STA 200 TO 218, BL 0 AND LBL 56, HAD CORROSION ON TOP SIDE OF WEB. REPLACED FLOOR MEMBRANE FROM LBL 20 TO BL 0 WITH RIVETS PER SRM 51-30-2. REMOVED CORROSION FROM LBL 20 TO LBL 56 PER SPM 6-80-1 AND SRM 51-1--3 FROM STA 200 TO 218.

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