Service difficulty report · Angle · Boeing 7377H4

Difficulty date
August 19, 2022
Submitted
September 27, 2022
Operation
Air carrier
Aircraft
N489WN
Make and model
Boeing 7377H4
Aircraft serial
33855
Aircraft time
57,460 hours, 34,246 cycles
Part
Angle
Condition
Corroded
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

CORROSION ON FWD ENTRY DOOR THRESHOLD SUPPORT ANGLE FROM STA 303.9+13 TO STA 328+12; WL 209; LBL 60 TO LBL 65. / [01] REMOVED CORROSION IAW SRM 53-10-15-1A-1. 2'X.65X.015 BS 341.5-343.5. FOUND TO BE OUT OF LIMITS IAW SRM 53-10-15-1A-1.;[02] TOOL ID: ATS401<BR>S/N: UNKNOWN<BR>DUE DATE:10/2022;[03] VERIFIED APPLICABILITY FOR SRM;[04] VERIFIED CORRECTIVE ACTION #1; #2; #3.;[05] REMOVED FWD ENTRY DOOR THRESHOLD SUPPORT ANGLE FROM STA 303.9+13 TO STA 328+12; WL 209; LBL 60 TO LBL 65 IAW SRM 51-40-02-0G-0;[06] CERTIFY;[07] LOCATED; DRILLED NEW FED THRESHOLD SUPPORT ANGLE IAW SRM 51-40-05-0G-0; DWG 141A8110;[08] OK TO INSTALL;[09] VERIFIED CORRECTIVE ACTIONS 7 AND 8.;[10] INSTALLED NEW FED THRESHOLD SUPPORT ANGLE FROM BS312 TO BS344 WL 209; LBL 60 IAW SRM 51-40-02-0G-0; DWG 141A8110;[11] VERIFIED CORRECTIVE ACTION 10;[12] COMPLETE;[13] VERIFIED MEASUREMENT TABLE.

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