SDR FDEA200906041930

Service difficulty report · Floorbeam · Boeing 75721B

Difficulty date: June 4, 2009
Submitted: June 5, 2009
Operation: Air carrier
Aircraft: N933FD
Make and model: Boeing 75721B
Aircraft serial: 24330
Aircraft time: 52,447 hours, 30,243 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Part number: BAC1505100617
Condition: Corroded
Location: Zone 200
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

CORROSION FOUND AT FLOORBEAM TOP AND BOTTOM FLANGE, STA 1320, LBL 24.75, WL 207.10 AFTER SEAT TRACK HAS BEEN REMOVED. EVALUATE AND RECTIFY. EXISTING REPAIR OF FLOORBEAM UPPER TEE AT LBL 34 TO RBL 34, BS 1320 REMOVED AND REPAIRED IAW SRM 53-00-51 FIG. 201 REV. 96, FLOORBEAM UPPER TEE REPAIR AWAY FROM SEAT TRACK AND EA F-5310-129614 CARRIED OUT. REPAIR CLASSIFIED AS MAJOR IAW GMM 6-2-100 CRITERIA.

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