SDR USAA951180

Service difficulty report · Floor Beam · Boeing 737401

Difficulty date: November 3, 1995
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N417US
Make and model: Boeing 737401
Aircraft serial: 23984
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floor Beam
Condition: Corrosion
Location: Bs 747
Part time: 19,934 hours
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

INT - DURING Q-5 CHECK VISUAL INSPECTION, FOUND 1 INCH BY 2 INCH CORRODED AREA RBL 14 CARGO FLOOR SUPPORT STRINGER (BEAM) AT BS 747. CUT OUT CORRODED SECTION OF BEAM BS 733-778. FABRICATED AND INSTALLED NEW SECTION OF BEAM (TRACK) AND SPLICES. REPAIRED PER SRM 53-00-53 FIG 202 AND BOEING DRAWING 65-47957. CORROSION TASK NR C53-208-01, CORROSION LEVEL 2. (M)