SDR 07FDEA04919

Service difficulty report · Floor Support · Boeing 727225

Difficulty date: November 24, 2007
Submitted: November 26, 2007
Operation: Air carrier
Aircraft: N464FE
Make and model: Boeing 727225
Aircraft serial: 21288
Aircraft time: 52,271 hours, 37,220 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Floor Support
Part number: BAC15171508
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

FWD PIT FLR SPPT Z-CHANNEL IS CORRODED BS 720B TO 720C PLUS 10, LBL 20, WL 156 BLENDED CORROSION ON FLOOR SUPPORT. MATERIAL OF .025" OF .063' ORIG "T" FOUND TO BE OUT OF LIMITS REF 53-10-1 PG 2. FABRICATED NEW FLOOR SUPPORT Z-CHANNEL FROM EXTRUSION BAC1517-1508 7075-T6. FABRICATED REPAIR SPLICE AT BS 720 PLUS 8 REF SRM 51-40-4 PG 1-9. INSTALLED Z-CHANNEL FLOOR SUPPORT FROM BS 720 PLUS 8 TO BS 720D, LBL 20, REF 51-30-2, SRM 51-40-4, 51-10-2.