Service difficulty report · Spar · Boeing 7377H4

Difficulty date
February 13, 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
Spar
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 INSPAR RIB 120.30 AT 18 INCHES FROM FRONT SPAR AT LT HORIZONTAL STABILIZER 2023-127441<[01] ET TOOL USED: PN: MIZ-21C ; SN: 769680; DUE DATE: 07-JUL-23;[02] TOOL USED PN:NORTEC 600D;PN:200053402;DUE DATE:13-MAY-23;[03] TOOLS USED: TEMPERATURE CONTROLLER P/N: P3015GOES00000; S/N: 112031023; DUE DATE: 01-FEB-24; TEMPERATURE CONTROLLER P/N: P3015GOES00000; S/N: 112820025; DUE DATE: 01-FEB-24.;[04] TOOL USED: BÏ¿½SCULA; PN: SCA-301; SN: AE-412136; DUE DATE: 14-MAR-23;[05] 'REFER TO FAULT TTG8Q00J4TZ0 WHERE EA 23-155-00790 WAS ADDED AS A SUBTASK.'; SEE INDIVIDUAL STEP SIGN OFFS BELOW;[06] 'REFER TO FAULT TTG8Q00J4TZ0 WHERE EA 23-155-00790 WAS ADDED AS A SUBTASK.'; RII; SEE INDIVIDUAL STEP SIGN OFFS BELOW

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