Service difficulty report · Rib · Boeing 7377H4

Difficulty date
February 26, 2023
Submitted
March 20, 2023
Operation
Air carrier
Aircraft
N278WN
Make and model
Boeing 7377H4
Aircraft serial
36441
Aircraft time
52,434 hours, 31,459 cycles
Part
Rib
Condition
Cracked
Location
Zn 300 Stabilize
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 INSPAR RIB 120.30 AT 34 INCHES FROM FRONT SPAR AT LT HORIZONTAL STABILIZER. 2023-127698<[01] ET TOOL USED: PN: MIZ-21C ; SN: 769680; DUE DATE: 07-JUL-23;[02] ACCOMPLISHED PERMANENT REPAIR HORIZONTAL STABILIZER - INSPAR RIB SSTA 120.3 - LOWER CHORD IAW EA-23-155-00790-WP1 ; EA 23-155-00790-WIP2 AND EA SUMMARY 23-155-00790. SEE INDIVIDUAL SIGN OFF BELLOW.;[03] ACCOMPLISHED PERMANENT REPAIR HORIZONTAL STABILIZER - INSPAR RIB SSTA 120.3 - LOWER CHORD IAW EA-23-155-00790-WP1 ; EA 23-155-00790-WIP2 AND EA SUMMARY 23-155-00790. RII; SEE INDIVIDUAL SIGN OFF BELLOW.

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