Service difficulty report · Angle · Boeing 7377H4

Difficulty date
July 6, 2023
Submitted
August 29, 2023
Operation
Air carrier
Aircraft
N297WN
Make and model
Boeing 7377H4
Aircraft serial
32542
Aircraft time
51,861 hours, 31,224 cycles
Part
Angle
Part number
UNKNOWN
Condition
Corroded
Location
Zn 100 Fus Lower
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 BS 277 LBL 40-LBL45 WL 208 LATERAL UPPER SURFACE CHORD ANGLE<[01] NO ALLOWABLE LIMITS FOUND ON SRM DAMAGE REMOVED PER SRM 51-10-02-0G-0 5'X1' AREA ORIGINAL MATERIAL THICKNESS IS 0.100' REMAINING LOWEST MATERIAL THICKNESS IS 0.062' SUBMMITED INFORMATION TO ENGINEERING TO FURTHER REPAIR INSTRUCTIONS;[02] TOOL USED ON CORRECTIVE ACTION 1<BR>ATS1225<BR>DUE 08/2023<BR>ATS2883<BR>DUE 04/2024;[03] VERIFIED CORRECTIVE ACTIONS 1 AND 2<BR><BR>VERIFIED MEASUREMENTS TABLE;[04] REPAIRED PER EA 23-153-02148. THIS IS A CATEGORY A REPAIR AS DEFINED IN BOEING 737-700 SRM 51-00-06.;[05] VERIFIED RII REQUIREMENTS COMPLETED.;[06] VERIFIED CORRECTIVE ACTION ITEMS AND MEASUREMENT FIELDS; CARD COMPLETE.

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