Service difficulty report · Keelbeam · Boeing 7377H4

Difficulty date
June 27, 2023
Submitted
July 25, 2023
Operation
Air carrier
Aircraft
N294WN
Make and model
Boeing 7377H4
Aircraft serial
32540
Aircraft time
51,742 hours, 31,145 cycles
Part
Keelbeam
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

CRACK ON KEEL BEAM LOCATED BETWEEN BS 727 TO BS 727A AND S-27R AT AFT CARGO COMPARTMENT 2023-409647<[01] TOOL USED PN:NORTEC 600D; SN:220272712; DUE DATE:17-DEC-23;[02] TOOLS USED: TEMPERATURE CONTROLLER P/N: P3015GOES00000; S/N: 142811020; DUE DATE: 25-JAN-24; TEMPERATURE CONTROLLER P/N: P3015GOES00000; S/N: 142811019; DUE DATE: 25-JAN-24.;[03] EQUIPMENT USED P/N: XR-1000; S/N: 1998072; DUE DATE: 15-OCT-23;[04] TOOLS USED POWER PACK P/N: PE1068; S/N: PE0318-95852; DUE DATE: 12-AUG-23; THERMOMETER P/N: 2278-20; S/N: AE-410974; DUE DATE: 06-JAN-24; MULTIMETER P/N: FLUKE 87; S/N: 44560136; DUE DATE: 07-MAR-24.;[05] REPAIRED KEEL BEAM LOCATED BETWEEN BS 727 TO BS 727A AND S-27R AT AFT CARGO COMPARTMENT IAW EA 23-153-02069-WIP1 AND AE 23-153-02069.;[06] REPAIRED KEEL BEAM LOCATED BETWEEN BS727 TO BS727A AND S-27R AT AFT CARGO COMPARTMENT IAW EA 23-153-02069-WIP1 AND AE 23-153-02069<BR>SEE INDIVIDUAL SIGNS-OFF BELOW;[07] REPAIRED KEEL BEAM LOCATED BETWEEN BS727 TO BS727A AND S-27R AT AFT CARGO COMPARTMENT IAW EA 23-153-02069-WIP1 AND EA 23-153-02069 <BR>SEE INDIVIDUAL SIGNS-OFF BELOW;[08] CERTIFIED STEP 7 COMPLETED <BR>RII

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