Service difficulty report · Floor Support · Boeing 7378H4

Difficulty date
November 4, 2023
Submitted
December 5, 2023
Operation
Air carrier
Aircraft
N8554X
Make and model
Boeing 7378H4
Aircraft serial
36993
Aircraft time
19,892 hours, 9,901 cycles
Part
Floor Support
Part number
UNKNOWN
Condition
Cracked
Location
Zn 200 Fus Top
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

FLOOR SUPPORT CRACKED AT BS 390 LBL51 WL208.<[01] REMOVED FLOOR SUPPORT ON BS 390 LBL 51 WL208 PER SRM 51-40-02 AND ENGINEER DWG: 143A5400 ID: 0183 (AND 0182).;[02] COMPLETED ALL STEPS REMOVED CRACKED FLOOR SUPPORT AT BS 390 LBL51 WL208 PER SRM 51-40-02 COMPLETED MEASUREMENT TABLE LOCATED AND DRILLED NEW FLOOR SUPPORT AT BS 390 LBL51 WL208. PER SRM 51-40-04 BOEING DWG 143A5400 ID: 0183 (AND 0182).INSTALLED NEW FLOOR SUPPORT AT BS 390 LBL51 WL208 PER SRM 51-40-02 ENGINEER DWG: 143A5400 ID: 0183 (AND 0182).;[03] REJECT: PIN PROTRUSION TO HEIGHT ON FLOOR SUPPORT AT BS 390 LBL51 WL208 <BR> SEE TTG8Q00PJG9K;[04] CORRECTED REJECTION IN ACTION 3. WORK PERFORMED AND DOCUMENTED ON CCN: TTG8Q00PJG9K.;[05] VERIFIED COMPLETION OF CORRECTIVE ACTIONS 4.;[06] VERIFIED COMPLETION OF CORRECTIVE ACTIONS 2 AND MEASUREMENT TABLE.

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