SDR FDEA202011253086

Service difficulty report · Floorbeam · Boeing 75727B

Difficulty date: November 25, 2020
Submitted: December 10, 2020
Operation: Air carrier
Aircraft: N916FD
Make and model: Boeing 75727B
Aircraft serial: 24137
Aircraft time: 72,594 hours, 28,245 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Floorbeam
Part number: 143N52503
Condition: Worn
Location: Zone 100
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

CABIN FLOOR BEAM INTERCOSTALS ABOVE FWD CARGO AFT BULKHEAD STACHNIONS AT BSTA 845 LBL & RBL 16.05 HAVE ELONGATED HOLES WHERE STACHION PINS LOCATE. REPLACED INTERCOSTALS, QTY 2, BS 839-BS 860, LBL 16 & RBL 16, IAW EA F-5340-T0358516. FUSELAGE-ATTACH FITTINGS-ALTERNATIVE FINISH AND EXTRUSION DURING FABRICATION OF INTERCOSTAL BS 839 TO BS 860, RBL AND LBL 16.

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