Service difficulty report · Frame · Boeing 7377H4

Difficulty date
March 1, 2022
Submitted
March 31, 2022
Operation
Air carrier
Aircraft
N763SW
Make and model
Boeing 7377H4
Aircraft serial
27877
Aircraft time
74,817 hours, 44,183 cycles
Part
Frame
Condition
Cracked
Location
Aft 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

CRACK ON AFT CARGO FRAME AT RBL 17 BS 907. / [01] VERIFIED APPLICABILITY FOR ALLOWABLE DAMAGE LIMITS IAW SRM 53-00-07-1A-1 ALLOWABLE DAMAGE 1 AND SRM 53-70-07-0I-1 IDENTIFICATION 1;[02] EVALUATED FRAME ; CRACK LENGTH: 1' FOUND OUT ALLOWABLE DAMAGE LIMITS IAW SRM 53-00-07-1A-1 ALLOWABLE DAMAGE 1 FIGURE 102 . TOOL USED CALIPER :ID:ATS2502 DATE DUE:04/2022;[03] VERIFIED CORRECTIVE ACTION ITEM 2.;[04] PARTIAL UPDATED STEP 4.;[05] PARTIAL UPDATED STEPS 1;2 AND 3;[06] PARTIAL UPDATED STEPS; 5;6;7 AND 8;[07] PARTIAL UPDATED STEP 9;[08] REMOVED ACB FRAME AT RBL 17 ; BS 907 IAW SRM 51-40-02-0G-0;[09] RECEIVED NEW FRAME P/N: 147AA1007U57 ; LOT: 1483838-1 ; PO/N: 859032/1.<BR><BR>LOCATED AND DRILLED NEW FRAME AT ACB BS 907 BTW STR 24R TO 24L IAW SRM 51-40-05 REQUEST OK TO INSTALL NEW FRAME .;[10] PARTIAL ENTRY STEPS 1-9 . REQUEST OK TO RE-INSTALL.;[11] VERIFIED CORRECTIVE ACTION #9 AND 10; OK TO INSTALL;[12] BEGAN INSTALL PERMANENT FASTENERS AND 100% TEMPORALLY FASTENERS AT ACB FRAME BS 907 BTW STR 24R TO 24L ; C-20 SEALANT USED AT 09-MAR-2022 04:13 UTC IAW SRM 51-40-02 AND DWG:147A0040 ; ID:0042 ; REV: A.COMPLETED NEW FRAME INSTALLATION BS 907; BETWEEN STR 24L - 24R. I.A.W DWG:147A0040 ID:0042 REV:A; DWG: 147A9409REV: -; DWG: 147A1007 REV:D AND SRM 51-40-02-0G-0.

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