Service difficulty report · Pressure Blkhd · Boeing 7377H4

Difficulty date
December 4, 2023
Submitted
February 6, 2024
Operation
Air carrier
Aircraft
N453WN
Make and model
Boeing 7377H4
Aircraft serial
29847
Aircraft time
64,260 hours, 38,168 cycles
Part
Pressure Blkhd
Part number
UNKNOWN
Condition
Cracked
Location
Bs 1016 S7r
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

BS 1016 AFT PRESSURE BULKHEAD CENTER DOME APEX WEB; FOUND CRACK INDICATION BL 0 - S-7R (HFEC) AT THE INBOARD LOWER FASTENER.<[01] ACCOMPLISHED EA 23-153-03585. REF FAULT TTG8Q00Q3A2W.;[02] VERIFIED ACCOMPLISHED EA 23-153-03585. REF FAULT TTG8Q00Q3A2W.

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