Service difficulty report · Nut Plate · Boeing 7377H4

Difficulty date
July 20, 2021
Submitted
August 18, 2021
Operation
Air carrier
Aircraft
N444WN
Make and model
Boeing 7377H4
Aircraft serial
29839
Aircraft time
61,121 hours, 35,983 cycles
Part
Nut Plate
Condition
Corroded
Location
Bs 787-794
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 NUTPLATE STRIP BS 787 TO BS 794 WL 156 RBL 21 ; / [01] CORROSION ON NUTPLATE STRIP FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS ARE GIVEN IN THE SRM; [02] REMOVED NUTPLATE ASSEMBLY PER SRM51-40-02; [03] VERIFIED EVALUATION FOUND TO BE OUT OF LIMITS PER SRM 51-10-02 STEP 9; [04] VERIFIED REMOVAL OF NUTPLATE ASSY; BS 787-794; RBL 21; VERIFIED OUT OF LIMITS DUE TO NO SRM ALLOWABLE LIMITS; [05] INSTALLED NUTPLATE ASSY/FASTENERS PER SRM 51-40-02 DWG 146A8340 SH12; [06] VERIFIED; [07] RII INSPECTED INSTALLL; [08] INSPECTION COMPLETE

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