Service difficulty report · Floorbeam · Boeing 7378H4

Difficulty date
May 9, 2024
Submitted
June 6, 2024
Operation
Air carrier
Aircraft
N8690A
Make and model
Boeing 7378H4
Aircraft serial
36916
Aircraft time
26,677 hours, 12,980 cycles
Part
Floorbeam
Part number
UNKNOWN
Condition
Corroded
Location
Bs 947 Lbl 25
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

CORROSION AROUND FITTING ON FLOOR BEAM BS 947; LBL 25 (MARKED)<[01] REMOVED DAMAGE ON BS 947 LBL 25 FLOOR BEAM UPPER SURFACE IN AN AREA OF 1'X 1'; ORIGINAL THICKNESS IS 0.180' REMAINING THICKNESS IS 0.105' CORROSION FOUND TO BE OUT OF LIMITS I.A.W SRM 53-70-51-1A-1 ALLOWABLE DAMAGE 1 PAR.4.D(2)(A) FIG.104/ALLOWABLE DAMAGE 1 DETAIL C. FLOOR BEAM UPPER SURFACE TO BE REPAIR IN CUSTOMER CARD NBR: TTG8Q00T88KY I.A.W SRM 53-70-51-2R-5 REPAIR 5 ALTERNATIVE 1.<BR>TOOL USED ID: ATS2472 DUE: 12/2024.;[02] VERIFIED CORRECTIVE ACTION 1.

More about the Boeing 737-8H4