Service difficulty report · Wedge · Boeing 7378H4

Difficulty date
August 19, 2025
Submitted
August 22, 2025
Operation
Air carrier
Aircraft
N8663A
Make and model
Boeing 7378H4
Aircraft serial
36902
Aircraft time
34,938 hours, 17,128 cycles
Part
Wedge
Condition
Debonded
Location
Zone 500 Flap
Stage of operation
IN
How discovered
V
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

LH INBOARD MAIN FLAP (P/N: 113A2100-71; SN: 000489) TRAILING LOWER SKIN DISBOND - PERMANENT REPAIR)<[01] REMOVED L/H I/B DAMAGED FLAP WEDGE AND UPPER PANEL TO FOM PER SRM 51-40-02;[02] REMOVED L/H I/B MAIN FLAP DAMAGED TRAILING EDGE WEDGE ASSEMBLY FOR REPLACEMENT PER SRM 51-40-02.;[03] NEW L/H I/B MAIN FLAP TAILING EDGE WEDGE ASSY. P/N 113A2550-603 S/N: BN541089 ISSUED ON FAULT NO: TTG8Q014MJGU;[04] LOCATED AND DRILLED NEW L/H I/B MAIN FLAP TAILING EDGE WEDGE ASSEMBLY PER SRM 51-40-05.;[05] INSTALLED NUT PLATES COMMON TO NEW TRAILING EDGED WEDGE ASSEMBLY PER SRM 51-40-02.;[06] APPLIED SURFACE FINISH COMMON TO NEW TRAILING EDGE WEDGE ASSEMBLY PER AMM 51-21-99;[07] C/W CA # 1 THRU 6;[08] OK TO CLOSE;[09] REINSTALLED UPPER PANEL PER SRM 51-40-02;[10] REMOVED AND REPLACED L/H I/B MAIN FLAP TRAILING EDGE WEDGE PER SRM 51-40-02. PART REPLACEMENT PER SRM 51-10-02-0G-0;[11] SINGED OFF THE MEASUREMENTS;[12] C/W CA #10 & 11 INSP

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