Service difficulty report · Skin · Boeing 7377H4

Difficulty date
August 11, 2023
Submitted
September 19, 2023
Operation
Air carrier
Aircraft
N447WN
Make and model
Boeing 7377H4
Aircraft serial
33720
Aircraft time
64,361 hours, 38,208 cycles
Part
Skin
Part number
UNKNOWN
Condition
Cracked
Location
Zn 300 Stabilize
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

CRACK FOUND ON RT HORIZONTAL STABILIZER LOWER IN-SPAR SKIN AT STATION 193.90 RIB; 17' APPROX. FROM L/E; I/B ROW (CRACK LENGTH 1') CRACK FOUND ON RT HORIZONTAL STABILIZER LOWER IN-SPAR SKIN AT STATION 193.90 RIB 17' APPROX. FROM L/E I/B ROW (CRACK LENGTH 1')<[01] ACCOMPLISHED REPAIR ON R/T HORIZONTAL STABILIZER LOWER IN-SPAR SKIN AT STA 193.90 PER SRM 55-10-01-2R-11 REPAIR 11;[02] VERIFIED REPAIR INSTALLED AND 100% FASTENER INSTALLATION BY SQUEEZE OUT TIME.

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