Service difficulty report · None · Boeing 7377H4

Difficulty date
September 3, 2022
Submitted
October 6, 2022
Operation
Air carrier
Aircraft
N952WN
Make and model
Boeing 7377H4
Aircraft serial
36667
Aircraft time
39,061 hours, 23,816 cycles
Part
None
Condition
Cracked
Location
Fwd Cargo Bay
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

CRACKED STRINGER AT AREA AFT OF FWD CARGO BAY BS535 S-26R WL153. MARKED / CUT AND REMOVED THE DAMAGED PART OF STRINGER 26R BETWEEN BS 500D+11' AND BS 540. AND UPDATED STEPS 2 AND 3; RECEIVED NEW REPLACEMENT STRINGER SECTION FROM O.S.S AFTER BEING FORMED AND FABRICATED FROM 7075T0 CLAD 0.045' LOT#1482747-1 ; HEATED TREATED TO T62 AND PENETRANT INSPECTED ON CUSTOMER RO # 882018-SWA ; AND FABRICATED NEW HUT SECTION SPLICE FROM EXTRUSION P/N BAC1498-117 LOT #1472651-1 ; LOCATED DRILLED AND APPLIED A CHEMICAL CONVERSION COATING IAW SRM 53-00-03-2R-1 REPAIR 1 OK TO PRIME;[06] VERIFIED CORRECTIVE ACTION ITEM 5. OKAY TO PRIME PARTS.;[07] APPLIED PRIMER TO ALL REPAIR PART AND REWORKED AREAS AT FCB S-36R BS 500D TO BS 540 IAW SRM 53-00-03-2R-1 REPAIR 1 ; OK TO INSTALL;[08] APPLIED PRIMER TO ALL REPAIR PART AND REWORKED AREAS AT FCB S-26R BS 500D TO BS 540 IAW SRM 53-00-03-2R-1 REPAIR 1 ; OK TO INSTALL;[09] VERIFIED CORRECTIVE ACTION ITEM 8. OKAY TO INSTALL REPAIR PARTS.;[10] INSTALLED ALL REPAIR PARTS AT FCB BETWEEN BS 500D AND BS 540 S-26R WL153 . APPLIED A FILLET SEAL AND CIC TO ALL REPAIR PARTS AND REWORKED AREAS IAW SRM 53-00-03-2R-1 REPAIR 1;[11] COMPLETED ALL STEPS;[12] VERIFIED STEPS 2; 3.<BR>VERIFIED CORRECTIVE ACTION #10.<BR>VERIFIED MEASUREMENTS.

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