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-26L WL153. MARKED / [01] VERIFIED THE APPLICABILITY OF SRM 53-00-03-2R-1 REPAIR 1;[02] CUT AND REMOVED THE DAMAGED PART OF STRINGER 26L BETWEEN BS 500D +11 TO BS 540 IAW SRM 53-00-03-2R-1 REPAIR 1 . AND UPDATED STEPS 2 AND 3;[03] VERIFIED ACTION 1;2 AND MEASUREMENT TABLE;[04] HFEC INSPECTED CUTOUT AREA IAW 737 NDTM PART 6 51-00-00 PROCEDURE 23.<BR>NO CRACKS NOTED.<BR>EQUIP USED:<BR>-NORTEC 600 ID: ATS2353 CAL DUE: 01/23;[05] 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 # 882014-SWA ; AND FABRICATED NEW HUT SECTION SPLICE FROM P/N 69-78188-14 EXTRUSION ; 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 REPAIR PARTS.;[07] APPLIED PRIMER TO ALL REPAIR PART AND REWORKED AREAS AT FCB S-26L BS 500D TO BS 540 IAW SRM 53-00-03-2R-1 REPAIR 1 ; OK TO INSTALL;[08] VERIFIED CORRECTIVE ACTION ITEM 7. OKAY TO INSTALL REPAIR PARTS.;[09] INSTALLED ALL REPAIR PARTS AT FCB BETWEEN BS 500D AND BS 540 S-26L WL153 I . APPLIED A FILLET SEAL AND CIC TO ALL REPAIR PARTS AND REWORKED AREAS IAW SRM 53-00-03-2R-1 REPAIR 1;[10] COMPLETED ALL STEPS;[11] VERIFIED STEP 2; 3.<BR>VERIFIED CORRECTIVE ACTION #9.<BR>VERIFIED MEASUREMENTS.

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