Service difficulty report · Stub Frame · Boeing 737

Difficulty date
August 22, 2022
Submitted
September 22, 2022
Operation
Air carrier
Aircraft
N489WN
Make and model
Boeing 737
Aircraft serial
33855
Aircraft time
57,460 hours, 34,246 cycles
Part
Stub Frame
Part number
141A8370U13
Condition
Cracked
Location
Fwd Service Door
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

FSD UPPER STUB FRAME IS CRACKED 3' BELOW STR 8 R/H / [01] VERIFIED APPLICABILITY FOR ALLOWABLE DAMAGE LIMITS IAW <BR> 53-10-15-1A-2 ALLOWABLE DAMAGE 2 AND EVALUATED UPPER STUB FRAME WITH CRACK ; DIMENSIONS L: 2' FOUND OUT ALLOWABLE DAMAGE LIMITS IAW 53-10-15-1A-2 ALLOWABLE DAMAGE 2 FIGURE 103 DETAIL L;[02] REMOVED UPPER STUB FRAME LOCATED B/S 294 STR8R/H P/N 141A8370U13 IAW SRM 51-40-02;[03] LOCATED AND DRILLED NEW STUB FRAME P/N 141A8370U13 ; LOT# 1501083-1 IAW SRM 51-40-05 AND DWG 141A8370 REV:D;[04] CERTIFY;[05] VERIFIED CORRECTIVE ACTION 3.;[06] PERFORMED COLD WORKING HOLES IAW SRM 51-40-09-2R-0 AND DWG 141A8370 REV:D FLAG NOTE 8;[07] CERTIFY;[08] VERIFIED CORRECTIVE ACTION 6.;[09] OK TO INSTALL;[10] OK TO INSTALL GIVEN.;[11] INSTALLED STUB FRAME IAW SRM 51-40-02 AND DWG 141A8370 REV:D 141A8380 REV:-;[12] VERIFIED CORRECTIVE ACTION 11.;[13] VERIFIED MEASUREMENT TABLE.;[14] COMPLETED WORK;[15] CERTIFY;[16] ALL STEPS COMPLETE; CARD COMPLETE..