Service difficulty report · Attach Angle · Boeing 7377H4

Difficulty date
May 5, 2020
Submitted
May 21, 2020
Operation
Air carrier
Aircraft
N922WN
Make and model
Boeing 7377H4
Aircraft serial
32461
Aircraft time
41,140 hours, 24,679 cycles
Part
Attach Angle
Part number
146A812553
Condition
Corroded
Location
Fuselage
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

AFT CARGO DOOR SURROUND STRUCTURE; FORWARD SHIELD ASSY. LOWER INBOARD ATTACH ANGLE HAS CORROSION UNDER NUTPLATES. STATION 767-787; STRINGER 24R; WL170. / REMOVED CORROSION IN AFT CARGO DOOR SURROUND STRUCTURE FWD SHIELD ASSY. LOWER I/B ATTACH ANGLE STA 767-787 STRINGER 24R IAW SRM 51-10-02-0G-0. 100% MATERIAL LOSS FOUND OUT OF LIMITS IAW B737 SRM 53-60-15-1A-1. REMOVED AND REPLACED ANGLE IAW B737 SRM 51-40-02-0G-0 AND DWG 146A0081 REV- AND 146A8125 REV A. P/N 146A8125-53

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