Service difficulty report · Pressure Deck · Boeing 7377Q8

Difficulty date
August 24, 2023
Submitted
September 14, 2023
Operation
Air carrier
Aircraft
N7859B
Make and model
Boeing 7377Q8
Aircraft serial
30641
Aircraft time
61,225 hours, 40,354 cycles
Part
Pressure Deck
Part number
UNKNOWN
Condition
Cracked
Location
Zn 100 Fus Lower
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

HORIZONTAL PRESSURE DECK IS CRACKED AT BS 665 LBL 33 WL202. APPROX 1 INCH IN LENGTH. FOUND ON HFEC INSPECTION. MARKED ENDS OF CRACK.<[01] SRM 53-40-51-2R-2 REPAIR 2 IS APPLICABLE;[02] CUT AND REMOVED THE DAMAGED PART OF THE WEB PER SRM 53-40-51-2R-2 FIGURE 203;[03] ACCOMPLISH ALL STEPS OF SRM REPAIR INSTRUCTIONS IN SUB-STEPS; SEE SUB-STEP 14.;[04] VERIFIED STEPS 19;20 IN PARTIAL.;[05] VERIFIED STEPS 7;13;18;21.;[06] REPAIRED CRACK IN HORIZONTAL PRESSURE DECK AT BS 665 LBL 33 WL202 IAW SRM SRM 53-40-51-2R-2-A01022.;[07] VERIFIED CORRECTIVE ACTION #6.<BR>VERIFIED MEASUREMENTS.

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