Service difficulty report · Angle · Boeing 7378H4

Difficulty date
October 23, 2023
Submitted
November 30, 2023
Operation
Air carrier
Aircraft
N8553W
Make and model
Boeing 7378H4
Aircraft serial
63601
Aircraft time
19,705 hours, 9,889 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

FWD CARGO STA 500D/500E; RBL 25 TRANSITION ANGEL HAS CORROSION .<[01] BLENDED AREAS; REMOVED .004' MATERIAL; FOUND TO BE WITHIN LIMITS PER SRM 53-00-53-1A-2.;[02] THIS SECTION OF ANGLE TO BE REPLACED ON NR# TTG8Q00P65VC FROM STA. 500D + 10 TO 500I.;[03] INSPECTED AS REQUIRED. CORRECTIVE ACTION #1 AND #2. REF. FAULTS #TTG8Q00P65TP; TTG8Q00P66BG; TTG8Q00P65UU; TTG8Q00P65V9 TO BE RESOLVED ON THIS FAULT.;[04] CUT OUT AND REMOVED DAMAGE RH TRANSITION ANGLE FROM STA 500 D+10 TO STA 500I FOR REPLACEMENT .LOCATED AND DRILLED THE REPLACEMENT FROM STA 500D +10 TO STA 500I.LOCATED AND DRILLED THE SPLICE DOUBLER FOR STA 500D+10 PER EA M-22-153-01550 AND SRM 53-00-53-2R-5. [08] REMOVED AND REPLACED SECTION OF RH TRANSITION ANGLE FROM STA. 500D + 10 TO 500I ; INSTALLED REPAIR SPLICE DOUBLER @STA 500D+10 PER EA M-22-153-01550;AND PER SRM 53-00-53-2R-5.INSTALLED BONDED NUT PLATES AND PERFORMED PUSH TEST GOOD PER SRM 51-40-10-2R-0.;[09] VERIFIED WORK PERFORMED ON STEP #4;[10] CLOSING FAULT; SEE INDIVIDUAL CORRECTIVE ACTIONS FOR WORK PERFORMED.

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