Service difficulty report · Beam · Boeing 7377H4

Difficulty date
July 30, 2021
Submitted
September 7, 2021
Operation
Air carrier
Aircraft
N449WN
Make and model
Boeing 7377H4
Aircraft serial
32469
Aircraft time
60,089 hours, 35,684 cycles
Part
Beam
Condition
Cracked
Location
R1 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

FWD SER DOOR BEAM #4 HAS A CRACK IN THE FILLET AREA AT I/B POS. P/N 141A6536-14. ; / [01] REMOVED FASTENERS ON L1 DOOR BEAM #4 PER REF B737-700 SRM 51-40-02-0G-0; [02] PARTIALLY LOCATED AND DRILLED NEW BEAM ON L1 DOOR #4 PER REF B737 DWG # 141A6535; [03] LOCATED AND DRILLED 100% NEW FWD SERVICE DOOR BEAM P/N 141A6536U20 REF B737-7 SRM 51-40-05-0G-0 AND DWG 141A6535; [04] INSPECTED STEP 3; [05] OK TO TREAT AND PRIME HOLES; [06] TREATED AND PRIME HOLES AT NEW BEAM REF B737-7 SRM 51-20-01-0G-0; [07] VERIFIED STEP 6; [08] OK TO INSTALL BEAM #4; [09] PARTIALLY INSTALLED BEAM#4 AT R1 DOOR PER REF B737-700 SRM 51-40-02-0G-0 AND DWG#141A6535.; [10] INSTALLED FASTENERS AT FWD SERVICE DOOR BEAM #4 REF B737-7 SRM 51-40-02-0G-0 AND DWG #141A6535; [11] REMOVED AND REPLACED NEW FWD SERVICE DOOR BEAM #4 REF B737-7 SRM 51-40-02-0G-0 AND DWG #141A6535; [12] VERIFIED NO 4 BEAM INSTALLATION REF STEP NO 9;10; AND 11<BR>(RII); [13] VERIFIED NO 4 BEAM INSTALLATION REF STEP NO 9;10; AND 11 <BR>(RII; [14] VERIFIED INSTALLATION NO 4 BEAM RII

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