Service difficulty report · Beam · Boeing 7377H4

Difficulty date
May 12, 2023
Submitted
June 14, 2023
Operation
Air carrier
Aircraft
N288WN
Make and model
Boeing 7377H4
Aircraft serial
36611
Aircraft time
51,345 hours, 30,884 cycles
Part
Beam
Condition
Corroded
Location
Zn 200 Fus Top
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

MAIN CABIN AFT WET AREA CORROSION AT FLOOR BEAM FASTENER HOLE STA 986.5 RBL 42'<[01] REMOVED CORROSION AT FLOOR BEAM STA 986.5 RBL 42' ORIGINAL MATERIAL 0.150'; REMOVED MATERIAL 0.073'; REMAINING MATERIAL 0.077'; REWORKED AREA IS OUT OF LIMITS REF SRM 53-70-51-1A-1. TRIMMED DAMAGED AREA; FABRICATED REPAIR PARTS AND INSTALLED PER REF SRM 53-70-51-2R-6; FIG 205;[02] RII VERIFIED REPAIR COMPLETED;[03] QC SME REJECT P/N CORRODED ELEMENT MISSING ON TABLE OF MEASUREMENTS

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