Service difficulty report · Flap · Boeing 7377H4

Difficulty date
December 14, 2023
Submitted
January 16, 2024
Operation
Air carrier
Aircraft
N455WN
Make and model
Boeing 7377H4
Aircraft serial
32462
Aircraft time
64,648 hours, 38,599 cycles
Part
Flap
Part number
UNKNOWN
Condition
Debonded
Location
Zn 500 Left Wing
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

LT WING O/B AFT FLAP I/B END LOWER SKIN AT T/E IS DISBONDED.<[01] REMOVED AND REPLACED LT. WING O/B AFT FLAP IAW AMM 27-51-22-000-801 & AMM 27-51-22-400-801 STEPS 3F(4). TORQUES AND SAFETIES VERIFIED.<BR><BR>CAL TOOLING:<BR> ID DD<BR>ATS2327 10/2024<BR>E11413 06/2024;[02] VERIFIED CORRECTION ACTION ITEM 1; MEASUREMENT TABLE; TORQUES AND SAFETIES; ADJUSTMENT CHECK DUE.;[03] INSTALLED AND TORQUED AFT FLAP ASSY TO RODS IAW AMM 27-51-22-400-801 STEPS 3F(5)<BR><BR>ID:PER2108<BR>DUE:6/24;[04] VERIFIED CORRECTIVE ACTION ITEM 3 COMPLETE.;[05] LT WING O/B AFT FLAP ADJUSTMENT CHECK IS GOOD IAW MM 27-51-22-400-801 STEP 3.G.; 3.H.(1)<BR>TASK IS COMPLETE;[06] VERIFIED ITEM 5.;[07] VERIFIED RII ITEM 5. LT WING O/B AFT FLAP ADJUSTMENT CHECK IS GOOD IAW MM 27-51-22-400-801 STEP 3.G.; 3.H.(1)<BR>TASK IS COMPLETE;[08] LT WING O/B AFT FLAP REMOVED; REPLACED; & ADJUSTED IAW AMM 27-51-22-400-801.

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