Service difficulty report · Strip · Boeing 7377H4

Difficulty date
March 27, 2022
Submitted
April 8, 2022
Operation
Air carrier
Aircraft
N922WN
Make and model
Boeing 7377H4
Aircraft serial
32461
Aircraft time
46,030 hours, 27,571 cycles
Part
Strip
Condition
Corroded
Location
Fwd Cargo
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

FWD CARGO R/H STA 495 TO STA 500D WL 156.1 RBL22 CAP STRIP FEW SPOTS OF CORROSION FWD CARGO L/H STA 495 TO STA 500D WL 156.1 RBL22 CAP STRIP FEW SPOTS OF CORROSION / [01] REMOVED CORROSION FROM SPOTS ON FWD CARGO R/H CAP STRIP STA 495 TO STA 500D AND REWORKED SURFACE TO A LIMIT OF 125 MICROINCHES PER SRM 51-10-02-0G-0.;[02] AFTER FURTHER EVALUATION; FOUND EXCESSIVE AMOUNT OF EXFOLIATION CORROSION PASSING THROUGH CAP STRIP. FOUND OUT OF LIMITS;[03] VERIFIED 1 & 2;[04] ADDING REFERENCE TO STEP 2: B737-700 SRM 53-00-53-1A-2;[05] RECEIVED NEW CAP STRIP PO# 1758681. REF TASK CARD TTG8Q004FADQ FOR INSTALLATION;[06] VERIFIED STEPS 4 AND 5.

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