Service difficulty report · Rail · Boeing 7377H4

Difficulty date
May 4, 2023
Submitted
June 13, 2023
Operation
Air carrier
Aircraft
N222WN
Make and model
Boeing 7377H4
Aircraft serial
34290
Aircraft time
58,122 hours, 34,829 cycles
Part
Rail
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

CORROSION...L/H AFT CARGO COMPARTMENT BILGE FLOOR RAIL @ STA 727 - STA 727A STR27L WL 152.7 HAS ELONGATED HOLE. (18-029) L/H AFT CARGO COMPARTMENT BILGE FLOOR RAIL @ STA 727 - STA 727A STR27L WL 152.7 HAS ELONGATED HOLE. (18-029)<[01] REAMED HOLE TO 0.261' NEXT OVERSIZE AT AFT CARGO COMPARTMENT FLOOR RAIL AT STA. 727 - STA. 727A; WL 152.7 PER REF. SRM 51-40-05-0G-0 AND TREATED AND PRIMED AFT CARGO COMPARTMENT FLOOR RAIL AT STA. 727 - STA. 727A; WL 152.7 PER REF. AMM 51-21-41-370-802 AND AMM 51-21-72-370-804.;[02] INSPECTED.;[03] INSPECTED L/H AFT CARGO COMPARTMENT BILGE FLOOR RAIL @ STA 727 - STA 727A STR27L WL 152.7 HAS ELONGATED HOLE

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