Service difficulty report · Web · Boeing 7378H4

Difficulty date
August 2, 2022
Submitted
August 22, 2022
Operation
Air carrier
Aircraft
N8656B
Make and model
Boeing 7378H4
Aircraft serial
42530
Aircraft time
24,629 hours, 11,108 cycles
Part
Web
Condition
Corroded
Location
Aft Cargo
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 AFT CARGO BAY THRESHOLD AT RBL 21 BS 787+8; RBL 26 BS 787+14-807+6; RBL 26 BS 807+8; RBL 26 BS 807+12; RBL 26 BS 807+19; RBL 26 BS 827+1-827+11. / 02] 1.- REMOVED CORROSION FROM ACB THRESHOLD AT RBL 21; BS 787+8; IS FOUND IN LIMITS IAW SRM 53-60-15-1A-1; PARG.4.G.(2) DETAIL G. REMOVED CORROSION FROM ACB THRESHOLD AT RBL 26; BS 787+14 - 807+6; AFTER BLENDOUT AREA; IS FOUND OUT OF LIMITS IAW SRM 53-60-15-1A-1; PARG.4.G.(2) DETAIL G. - REMOVED CORROSION FROM ACB THRESHOLD AT RBL 26; BS 807+8; AFTER BLENDOUT AREA; IS FOUND IN LIMITS IAW SRM 53-60-15-1A-1; PARG.4.G.(2) DETAIL G. - REMOVED CORROSION FROM ACB THRESHOLD AT RBL 26; BS 807+12; AFTER BLENDOUT AREA; DIMENSIONS: L= 2.00'; W= 1.6'; D= 0.012'; ORIGINAL THICKNESS: 0.050'; AND IS FOUND OUT OF LIMITS IAW SRM 53-60-15-1A-1; PARG.4.G.(2) DETAIL G. DEPT GAUGE USED: ID: ATS2678; S/N UNKNOW; DUE DATE: 04/2023.<BR>5.- REMOVED CORROSION FROM ACB THRESHOLD AT RBL 26; BS 807+19; AFTER BLENDOUT AREA; DIMENSIONS: L= 3.00'; W= 0.900; D= 0.004'; ORIGINAL THICKNESS: 0.050'; AND IS FOUND IN LIMITS IAW SRM 53-60-15-1A-1; PARG.4.G.(2) DETAIL G.REMOVED CORROSION FROM ACB THRESHOLD AT RBL 26; BS 827+1; AFTER BLENDOUT AREA; DIMENSIONS: L= 12.00'; W= 2.00'. D= 0.011'; AND IS FOUND OUT OF LIMITS IAW SRM 53-60-15-1A-1; PARG.4.G.(2) DETAIL G. [11] PARTIALLY INSTALLED ACB THRESHOLD WEB PER SRM 51-40-02-0G-0 AND DWG 146A8340;[12] INSTALLED AFT THRESHOLD WEB PER SRM 51-40-02-0G-0 AND BOEING DWG 146A8340;

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