Service difficulty report · Thrust Reverser · Boeing 7377H4

Difficulty date
November 20, 2023
Submitted
January 5, 2024
Operation
Air carrier
Aircraft
N445WN
Make and model
Boeing 7377H4
Aircraft serial
29841
Aircraft time
64,695 hours, 38,824 cycles
Part
Thrust Reverser
Part number
UNKNOWN
Condition
Corroded
Location
Zn 400 Nacelle/P
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

CORROSION AT NO-2 ENGINE INB THRUST REVERSER AFT TRAILING EDGE<[01] EVALUATED DAMAGE AREA AT NO2 ENG I/B T/R AFT T/E SKIN; FOUND DEEP PITTING CORROSION OUT OF LIMITS PER REF B737 SRM 54-30-01-1A-4. T/R WILL BE REPLACED ON FAULT TTG8Q00PYAGH.;[02] VERIFIED STEP 1;[03] FINAL INSPECTION; VERIFIED STEP #1.

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