Service difficulty report · Attach Angle · Boeing 7378H4

Difficulty date
December 10, 2022
Submitted
January 9, 2023
Operation
Air carrier
Aircraft
N8526W
Make and model
Boeing 7378H4
Aircraft serial
36972
Aircraft time
19,461 hours, 9,374 cycles
Part
Attach Angle
Condition
Corroded
Location
Zone 100
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

IN THE FWD CARGO COMPARTMENT AT 500I; THE FLOORBOARD ATTACH ANGLE FROM LBL 23 TO RBL 23 HAS AREAS OF CORROSION.<[01] REMOVED DAMAGE PER SRM 51-10-02 AND FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2. REMOVED PART FROM AIRCRAFT PER SRM 51-40-02.;[02] ADD TOOL;[03] VERIFIED DAMAGE REMOVAL; OUT OF LIMITS;[04] FABRICATED TRANSITION ANGLES 2EA FOR REPLACEMENT FROM STA 480+8 TO 500I INCORPORATING A SPLICE REPAIR AT STA 480+8 AND A SPLICE REPAIR AT 500E+ 10. PER SRM 53-00-53-2R-5. DRILLED PER SRM 51-40-05 AND COUNTERSINK PER SRM 51-40-08.;[05] INSPECTED WORK ACCOMPLISHED IN C/A #4. RICHARD PARRY (TECHNICIAN); 14-DEC-2022 01:17 UTC<BR>FABRICATED TRANSITION ANGLES 2EA FOR REPLACEMENT FROM STA 480+8 TO 500I INCORPORATING A SPLICE REPAIR AT STA 480+8 AND A SPLICE REPAIR AT 500E+ 10. PER SRM 53-00-53-2R-5. DRILLED PER SRM 51-40-05 AND COUNTERSINK PER SRM 51-40-08. NO DEFECTS NOTED.;[06] TREATED NEW SECTIONS OF TRANSITION ANGLE AND REPAIR PARTS PER AMM 51-21-31 AND PRIMED PER AMM 51-21-72. OK TO ASSEMBLE PARTS AND INSTALL ON AIRCRAFT.;[07] INSPECTED WORK ACCOMPLISHED ON CA #6. OK TO ASSEMBLE AND INSTALL.;[08] ENTERED IN ERROR. TRANSFERRED TO CORRECT ITEM SEE TTG8Q00GKC1V.;[09] ENTERED IN ERROR. TRANSFERRED TO CORRECT ITEM SEE TTG8Q00GKC1V.;[10] ENTERED IN ERROR. TRANSFERRED TO CORRECT ITEM SEE TTG8Q00GKCY5.;[11] VERIFED ITEMS 8;9;10 WHERE TRANSFERED;[12] REMOVED AND REPLACED BULKHEAD ATTACH ANGLE AT STA 500I LBL 23-RBL 23 PER SRM 51-40-02.

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