Service difficulty report · Attach Angle · Boeing 737*

Difficulty date
August 30, 2021
Submitted
September 24, 2021
Operation
Air carrier
Aircraft
N229WN
Make and model
Boeing 737*
Aircraft serial
32498
Aircraft time
53,178 hours, 31,536 cycles
Part
Attach Angle
Condition
Cracked
Location
Fuselage
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

B.S. 663 LOWER COMPOSITE BULKHEAD UPPER ATTACH ANGLE IS CRACKED AT R.B.L. 8; W.L. 164. ; / [08] LOCATED AND DRILLED REPLACEMENTE ANGLE FROM ATSHFAB-101-354 JOB N# 540554 AND SPLICE ANGLE FROM ATSHFAB-101-355 JOB N#540681 IAW SRM 51-40-05 AND 57-10-10-2R-5 STEP 4 -I; FIG.202; [09] CERTIFIED ITEM 8 -LOCATED AND DRILLED REPLACEMENTE ANGLE FROM ATSHFAB-101-354 JOB N# 540554 AND SPLICE ANGLE FROM ATSHFAB-101-355 JOB N#540681 IAW SRM 51-40-05 AND SRM 57-10-10-2R-5 STEP 4 -I; FIG.202.; [10] VERIFIED LOCATE AND DRILL OF REPLACEMENT ANGLE ON ATSHFAB-101-354 AND ATSHFAB-101-355 PER SRM 51-40-05 AND SRM 57-10-10-2R-5; OK TO TREAT AND PRIME; [11] APPLIED CHEMICAL CONVERSION AND PRIME AT REPAIR AREA AND REPAIR PARTS IAW SRM 51-20-01-0G-0 AND SRM 57-10-10-2R-5 STEPS 4 (F AND G). REQ OK TO INSTALL REPAIR PARTS; [12] VERIFIED APPLIED CHEMICAL CONVERSION AND PRIME AT REPAIR AREA AND REPAIR PARTS (REPLACEMENT ANGLE SECTION AND SPLICE ANGLE) IAW SRM 51-20-01-0G-0 AND SRM 57-10-10-2R-5 STEPS 4 (F AND G). OK TO INSTALL REPAIR PARTS; [13] CORRECTION TO ITEM# 10 - ALSO VERIFIED LOCATE AND DRILL OF REPLACEMENT *SPLICE ANGLE* FROM ATSHFAB-101-355 JOB #540681 IAW SRM 51-40-05 AND SRM 57-10-10-2R-5; [14] INSTALLED REPAIR PARTS AT B.S.663 WL 164 RBL 5 TO RBL 20 IAW SRM 57-10-10-2R-5 STEP 4-L AND DWG 111A100 REV.- AND DWG 144A7100 REV.-;