Service difficulty report · Rib · Boeing 7377H4

Difficulty date
September 23, 2020
Submitted
October 13, 2020
Operation
Air carrier
Aircraft
N498WN
Make and model
Boeing 7377H4
Aircraft serial
32480
Aircraft time
54,229 hours, 32,111 cycles
Part
Rib
Condition
Cracked
Location
Horizontal Stab
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

LEFT HORIZONTAL STAB INSPAR RIB ASSEMBLY STA 120.30. RIB NR 4 CRACKED AT UPPER FWD OUTBOARD FLANGE (FIRST FASTENER HOLE). REPAIRED LEFT HORIZONTAL STAB INSPAR RIB ASSEMBLY STA 120.30 RIB NR 4 AT UPPER FWD OUTBOARD FLANGE, AS PER REF RES WI-2016 254.2 AND EA NR 20-155-01859 REV IR.

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