Service difficulty report · Attach Angle · Boeing 7377H4

Difficulty date
March 10, 2023
Submitted
April 18, 2023
Operation
Air carrier
Aircraft
N281WN
Make and model
Boeing 7377H4
Aircraft serial
36528
Aircraft time
51,516 hours, 31,045 cycles
Part
Attach Angle
Condition
Cracked
Location
Zn 200 Fus Top
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

CRACKED ATTACH ANGLE AT FWD CABIN BS294 RBL53 WL208.<[01] REQUEST NDI TO VERIFY DAMAGE.;[02] UNABLE TO PERFORM HFEC INSPECTION DUE TO AREA NOT BEING SUFFICIENTLY CLEANED.;[03] HFEC INSPECTED SUSPECTED CRACKED AREA IAW 737 NDTM PART 6 51-00-00 PROCEDURE 23.<BR>VERIFIED AREA TO BE CRACKED.<BR>EQUIP USED:<BR>-NORTEC 600 ID: ATS1465 CAL DUE: 09/23;[04] UPDATED THE MEASUREMENT TABLE;[05] ATTACH ANGLE AT FWD CABIN BS294 RBL53 WL208 FOUND TO BE OUT OF LIMITS DUE TO CRACKS ARE NOT PERMITTED IAW SRM 53-10-51-1A-1 REMOVED ATTACH ANGLE IAW SRM 51-40-02-0-G;[06] LOCATED AND DRILLED NEW ATTACH ANGLE AT FWD CABIN BS294 RBL53 WL208 IAW SRM 51-40-05 AND DWG # 141A8312 ; OK TO INSTALL;[07] VERIFIED CORRECTIVE ACTION #5 (ATTACH ANGLE AT FWD CABIN BS294 RBL53 WL208 FOUND TO BE OUT OF LIMITS);[08] VERIFIED CORRECTIVE ACTION #6 (OK TO INSTALL NEW ATTACH ANGLE AT FWD CABIN BS294 RBL53 WL208 GIVEN)<BR>MEASUREMENT TABLE VERIFIED;[09] INSTALLED NEW ATTACH ANGLE AT FWD CABIN BS294 RBL53 WL208 IAW SRM 51-40-02 AND DWG # 141A8312;[10] VERIFIED CORRECTIVE ACTION #9;[11] VERIFIED WORK CARD COMPLETED.

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