Service difficulty report · Floorbeam · Boeing 73776N

Difficulty date
November 14, 2023
Submitted
December 15, 2023
Operation
Air carrier
Aircraft
N7722B
Make and model
Boeing 73776N
Aircraft serial
32668
Aircraft time
55,418 hours, 28,473 cycles
Part
Floorbeam
Part number
UNKNOWN
Condition
Corroded
Location
Zn 100 Fus Lower
Stage of operation
IN
How discovered
9
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

MAIN CABIN FWD WET AREA CORROSION AT FLOOR BEAM UPPER SURFACE STA 344 LB 0'<[01] REMOVED CORROSION AT MAIN CABIN FWD WET AREA; FLOOR BEAM UPPER SURFACE AT STA 344; LB '0';PER B 737-700 SRM 51-10-02-0G-0;MATERIAL LOST 0.022' MATERIAL REMAINING 0.153. FOUND OUT OF LIMITS AS PER SRM 53-10-51-1A-1 FIGURE 105 INSTALLED STRAP AND TAPERED FILLER; REF SRM 53-10-51-2R-8;[02] VERIFIED STEP 1.

More about the Boeing 737-76N