Service difficulty report · Support Angle · Boeing 7377H4

Difficulty date
June 24, 2022
Submitted
August 10, 2022
Operation
Air carrier
Aircraft
N951WN
Make and model
Boeing 7377H4
Aircraft serial
36665
Aircraft time
39,132 hours, 23,683 cycles
Part
Support Angle
Condition
Corroded
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

CORROSION ON FSD MOP SILL WL 208.2; BS 312+7; RBL 57.5 & BS 312+14; RBL 58.3 (MARKED) / [01] REMOVED CORROSION ON FSD MOPSILL AT BS 312+7 IN A .8 X 2' X.003 AND BS312+14 WL208 IN A 3'X 1.5' X .016 ORIGINAL THICKNESS .080 FOUND TO BE OUT OF LIMITS PER SRM 53-10-15-1A-2 STEP 4-A 2 FIG 103 D;[02] CORRECTION TO STEP 1 ATS TOOL USED ID-E9655 S/N UNKNOWN DATE-03/2023;[03] VERIFIED ITEMS 1;2 CORRECTIVE ACTIONS.;[04] REMOVED MOP SILL FSD WL 208 RBL BS 340 TO 277 IAW SRM 51-40-02-0G-0;[05] UPDATE TO STEP 4 FOR RBL 57.5-RBL 58.3 LOCATIONS;[06] CERTIFY;[07] STARTED DRILLING MOP SILL IAW SRM 51-40-05.;[08] LOCATED AND DRILLED NEW MOP SILL FROM BS260 TO BS360 RBL 57.5 WL 208 PER SRM 51-40-05-0G-0 AND DWG 141A8310. REQUEST OK TO INSTALL.;[09] VERIFIED CORRECTIVE ACTIONS STEP 8. OK TO INSTALL GIVEN.;[10] STARTED INSTALLING NEW MOP SILL FROM BS260 TO BS360 RBL 57.5 WL 208 PER SRM 51-40-05-0G-0 AND DWG 141A8310.;[11] INSTALLED NEW MOP SILL ON FSD FROM BS260 TO BS360 RBL 57.5 WL 208 PER SRM 51-40-05-0G-0 AND DWG 141A8310.;[12] UPDATED PARTS;[13] CERTIFIED STEP 11;[14] VERIFIED CORRECTIVE ACTION #11;[15] VERIFIED MEASUREMENT TABLE<BR>TASK COMPLETE

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