Service difficulty report · Angle · Boeing 7377H4

Difficulty date
September 15, 2021
Submitted
October 14, 2021
Operation
Air carrier
Aircraft
N904WN
Make and model
Boeing 7377H4
Aircraft serial
36616
Aircraft time
45,638 hours, 27,243 cycles
Part
Angle
Condition
Corroded
Location
Fwd Cargo Bay
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 LH TRANSITION ANGLE FROM STA 500-500D; WL 156.5 AT LBL 24 HAS AREAS OF CORROSION AT FASTENER HOLES. (MARKED) ; / [01] WHILE REMOVING CORROSION ;FOUND AREA OUT OF LIMITS PER SRM 53-00-53-1A-2.[0.0 08] REMOVED; [02] LOCATED AND DRILLED HOLES FROM STA 490 TO STA 500D LBL 24(EXISTING SPLICE). PER SRM 51-40-05; [03] APPLIED ALODINE TO PARTS PER SRM 51-20-01; [04] VERIFIED CORRECTIVE ACTIONS 2 AND 3; [05] MATCH DRILLED REPLACEMENT TRANSITION ANGLE PER SRM 51-40-02; INSTALLATION ON FAULT 5330-E-16461-NG (CPCP/AD MOC - FWD CARGO COMPARTMENT FLOOR STRUCTURE CORROSION PROTECTION) [TTG8Q004E4SE]; [06] C/W INSPECTION.

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