Service difficulty report · Beam · Boeing 7377H4

Difficulty date
June 28, 2021
Submitted
July 30, 2021
Operation
Air carrier
Aircraft
N751SW
Make and model
Boeing 7377H4
Aircraft serial
29803
Aircraft time
74,739 hours, 44,231 cycles
Part
Beam
Condition
Cracked
Location
Fwd Service Door
Stage of operation
IN
How discovered
V
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 FOUND AT NO. 4 BEAM IN THE FWD SERVICE DOOR INTERNAL STRUCTURE PN 141A6536-14 LOWER BEAM. ENSURE THAT EITHER EO 5241-C-14093-NG OR EO 5241-C-14344-NG IS IDENTIFIED IN THE REPAIR ORDER (RO) ; CRACK FOUND AT NO. 4 BEAM IN THE FWD SERVICE DOOR INTERNAL STRUCTURE PN 141A6536-14 LOWER BEAM. ENSURE THAT EITHER EO 5241-C-14093-NG OR EO 5241-C-14344-NG IS IDENTIFIED IN THE REPAIR ORDER (RO) OR ADDED TO AIRCRAFT WORK PACKAGE. / [01] PARTIALLY REMOVED FASTENERS AT NO.4 BEAM IN THE. R1 SERVICE DOOR INTERNAL STRUCTURE PER REF B737-700 SRM 51-40-02-0G-0; [02] PARTIAL CONTINUE REMOVED FASTENERS ON #4 BEAM R1 INTERNAL STRUCTURE REF B737-700 SRM 51-40-02; [03] COMPLETED REMOVED DAMAGE # 4 BEAM ON R/1 INTERNAL RESTRUCTURE REF B 737-700 SRM 51-40-02-0G-0; [04] LOCATED AND DRILLING NEW BEAM #4 REF B 737-700 SRM 51-40-05-0G-0; [05] VERIFIED STEPS 1 - 4; [06] (LATE ENTRY) STEP 4 IS RII; [07] OK TO INSTALL BEAM #4; [08] INSTALLED NEW BEAM #4 AT R-1 SERVICE DOOR INTERNAL STRUCTURE REF SRM 51-40-05-0G-0; CMM52-41-05 AND B/DRAWINGS 141A6516; [09] LATE ENTRY PARTIALL REMOVED WEB FOR ACCESS TO BEAM; [10] OK TO INSTALL PARTIALLY REMOVED WEB; [11] PARTIAL INSTALLED WEB ON R/1 SERVICE DOOR REF B737-700-0G-0; [12] MISSING REFERENCE ON STEP #11 SRM 51-40-05-0G-0; [13] COMPLETE INSTALLED WEB AT R/1 DOOR I TERROR AREA REF B 737-700 SRM 51-40-02-0G-0; [14] VERIFIED STEP #9; [15] VERIFIED STEP 8; [16] VERIFIED STEPS 11; 12 AND 13

More about the Boeing 737-7H4